Repair and Diagnosis (Single Page)
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Quick Lookups
Common Specs & Procedures
DTC Index
Electrical Component Locations
Fluids
Technical Bulletins
Wiring Diagrams- System Wiring Diagrams - C3500
- Air Conditioning
- Anti-Lock Brakes
- Computer Data Lines
- Cooling Fan
- Cruise Control
- Engine Performance
- Exterior Lights
- Ground Distribution
- Headlights
- Horn
- Instrument Cluster
- Interior Lights
- Power Distribution
- Power Door Locks
- Power Mirrors
- Power Seats
- Power Windows
- Radio
- Shift Interlocks
- Starting/Charging
- Supplemental Restraints
- Transmission
- Warning Systems
- Wiper/Washer
- Using lemon2025'S System Wiring Diagrams
- System Wiring Diagrams - C3500
- Accessories & Equipment
- Anti-Theft Systems
- Door Locks - Power
- Description & Operation
- Component Location
- Trouble Shooting
- System Tests
- Notes
- Test A: Power Door Locks Do Not Operate From Either Switch (2-Door)
- Test B: Both Switches Only Open One Door Lock (2-Door)
- Test C: None Of The Door Lock Motors Lock Or Unlock (4-Door)
- Test D: Both Switches Only Open One Door Lock (4-Door)
- Test E: Power Door Locks Only Work From One Lock Switch (All Vehicles)
- Test F: Cargo Door Lock Motor Does Not Lock &/Or Unlock (Suburban)
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Special Tools
- Door Locks - Power
- Communication Devices
- Cruise Control Systems
- Gauges & Instrument Panels
- Identification
- Description
- Operation
- Antilock Brake Warning Light
- Brake Warning Light System
- Charging System Warning System
- Check Gages Light
- Coolant Temperature Gauge
- Fuel Gauge
- Glow Plugs Light
- Low Coolant Indicator
- Oil Pressure Gauge
- Service Engine Soon Or Check Engine Warning Light
- Service Fuel Filter Or Water In Fuel Warning Light
- Service Throttle Soon Warning Light
- Shift Light
- Speedometer/Odometer
- Vehicle Speed Sensor
- Voltmeter
- Testing
- Removal & Installation
- Wiring Diagrams
- Heated Glass/Defoggers
- Mirrors - Power
- Seats - Power
- Steering Column Switches
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Anti-Theft Systems
- Body & Frame
- Door Locks - Power
- Description & Operation
- Component Location
- Trouble Shooting
- System Tests
- Notes
- Test A: Power Door Locks Do Not Operate From Either Switch (2-Door)
- Test B: Both Switches Only Open One Door Lock (2-Door)
- Test C: None Of The Door Lock Motors Lock Or Unlock (4-Door)
- Test D: Both Switches Only Open One Door Lock (4-Door)
- Test E: Power Door Locks Only Work From One Lock Switch (All Vehicles)
- Test F: Cargo Door Lock Motor Does Not Lock &/Or Unlock (Suburban)
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Special Tools
- Mirrors - Power
- Seats - Power
- Power Windows
- Door Locks - Power
- Brakes
- Anti-Lock Brakes
- Anti-Lock Brake System
- Description
- Operation
- Bleeding Brake System
- Diagnosis
- Diagnostic Charts
- Notes
- DTC 21 - Right Front Speed Sensor Or Circuit Open
- DTC 22 - Missing Right Front Speed Signal
- DTC 23 - Erratic Right Front Speed Sensor
- DTC 25 - Left Front Speed Sensor Or Circuit Open
- DTC 26 - Missing Left Front Speed Signal
- DTC 27 - Erratic Left Front Speed Sensor
- DTC 29 - Simultaneous Drop-Out Of Front Speed Sensors
- DTC 35 - Open Or Grounded Rear Speed Signal Circuit
- DTC 36 - Missing Rear Speed Signal
- DTC 37 - Erratic Rear Speed Signal
- DTC 38 - Wheel Speed Error
- DTC's 41-54 - Control Valves
- DTC 65 Or 66 - Open Or Shorted Pump Motor Relay
- DTC 67 - Open Motor Circuit Or Shorted BPMV Output; DTC 68 Locked Motor Or Shorted Motor Circuit
- DTC's 71-74 - Memory Errors
- DTC 81 - Brake Switch Circuit Shorted Or Open
- DTC 86 - Shorted Anti-Lock Indicator Light
- DTC 88 - Shorted Brake Warning Light
- Trouble Shooting Charts
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagram
- Anti-Lock Brake System
- Mechanical - Hydraulic
- Disc Brake System & Drum Brake System - "C" & "K" Series
- Model Identification
- Description & Operation
- Bleeding Brake System
- Adjustments
- Testing
- On-Vehicle Service
- Removal & Installation
- Front Brake Caliper
- Front Brake Rotor
- Rear Caliper (Disc Brakes)
- Linings (Rear Disc Brakes)
- Rear Brake Rotor
- Rear Brake Drum
- Rear Brake Shoes
- STOPLAMP Switch
- Wheel Cylinder
- Master Cylinder
- Power Brake Booster
- Height-Sensing Proportioning Valve
- Combination Valve
- Rear Axle Bearing & Oil Seal (Semi-Floating Axle)
- Rear Axle Hub Bearings & Oil Seal (Full-Floating Axle)
- Overhaul
- Drum Brake Specifications
- Disc Brake Specifications
- Torque Specifications
- Power Brake Booster
- Disc Brake System & Drum Brake System - "C" & "K" Series
- Traction Control
- Anti-Lock Brake System
- Description
- Operation
- Bleeding Brake System
- Diagnosis
- Diagnostic Charts
- Notes
- DTC 21 - Right Front Speed Sensor Or Circuit Open
- DTC 22 - Missing Right Front Speed Signal
- DTC 23 - Erratic Right Front Speed Sensor
- DTC 25 - Left Front Speed Sensor Or Circuit Open
- DTC 26 - Missing Left Front Speed Signal
- DTC 27 - Erratic Left Front Speed Sensor
- DTC 29 - Simultaneous Drop-Out Of Front Speed Sensors
- DTC 35 - Open Or Grounded Rear Speed Signal Circuit
- DTC 36 - Missing Rear Speed Signal
- DTC 37 - Erratic Rear Speed Signal
- DTC 38 - Wheel Speed Error
- DTC's 41-54 - Control Valves
- DTC 65 Or 66 - Open Or Shorted Pump Motor Relay
- DTC 67 - Open Motor Circuit Or Shorted BPMV Output; DTC 68 Locked Motor Or Shorted Motor Circuit
- DTC's 71-74 - Memory Errors
- DTC 81 - Brake Switch Circuit Shorted Or Open
- DTC 86 - Shorted Anti-Lock Indicator Light
- DTC 88 - Shorted Brake Warning Light
- Trouble Shooting Charts
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagram
- Anti-Lock Brake System
- Anti-Lock Brakes
- Drivelines & Axles
- Differentials & Drive Axles
- Driveshaft & Universal Joints
- Electrical
- Charging Systems
- Component Locations
- Fuses & Circuit Breakers
- Fuses & Circuit Breakers
- Identification
- Battery Specifications
- Cautions & Warnings
- Supplemental Restraint System (Air Bag)
- Air Conditioning Servicing
- Anti-Lock Brake System
- Replacing Blown Fuses
- Battery Warning
- Brake Pad Wear Indicator
- Catalytic Converter
- Diesel Fuel Anti-Fungal Additives
- Diesel Fuel Contamination
- Diesel Fuel Requirements
- Electrostatic Discharge Sensitive (ESD) Parts
- Fuel System Service
- Halogen Bulbs
- Radiator Fan
- Gauges
- Instrument Panel
- Identification
- Description
- Operation
- Antilock Brake Warning Light
- Brake Warning Light System
- Charging System Warning System
- Check Gages Light
- Coolant Temperature Gauge
- Fuel Gauge
- Glow Plugs Light
- Low Coolant Indicator
- Oil Pressure Gauge
- Service Engine Soon Or Check Engine Warning Light
- Service Fuel Filter Or Water In Fuel Warning Light
- Service Throttle Soon Warning Light
- Shift Light
- Speedometer/Odometer
- Vehicle Speed Sensor
- Voltmeter
- Testing
- Removal & Installation
- Wiring Diagrams
- Instrument Panel
- Starter
- Wiring Diagrams
- System Wiring Diagrams - C3500
- Air Conditioning
- Anti-Lock Brakes
- Computer Data Lines
- Cooling Fan
- Cruise Control
- Engine Performance
- Exterior Lights
- Ground Distribution
- Headlights
- Horn
- Instrument Cluster
- Interior Lights
- Power Distribution
- Power Door Locks
- Power Mirrors
- Power Seats
- Power Windows
- Radio
- Shift Interlocks
- Starting/Charging
- Supplemental Restraints
- Transmission
- Warning Systems
- Wiper/Washer
- Using lemon2025'S System Wiring Diagrams
- System Wiring Diagrams - C3500
- Engine Mechanical
- Accessory Drive Belts
- Drive Belt Routing
- Belt Adjustment
- Serpentine Belt Routing
- Notes
- Serpentine Belt Routing ("C" & "K" With 4.3L, 5.0L & 5.7L)
- Serpentine Belt Routing ("C" & "K" With 6.5L Diesel)
- Serpentine Belt Routing ("C" & "K" With 7.4L)
- Serpentine Belt Routing ("G" With 4.3L, 5.0L & 5.7L)
- Serpentine Belt Routing ("G" With 7.4L)
- Serpentine Belt Routing ("G" & "P" With 6.5L Diesel)
- Serpentine Belt Routing ("G" & "P" With 6.5L Turbo Diesel)
- Drive Belt Routing
- Auxiliary Emission Control Systems
- Engine Cooling Fan
- Cooling System (Mechanical)
- Cooling System Specifications
- Drive Belt Routing
- Belt Adjustment
- Serpentine Belt Routing
- Notes
- Serpentine Belt Routing ("C" & "K" With 4.3L, 5.0L & 5.7L)
- Serpentine Belt Routing ("C" & "K" With 6.5L Diesel)
- Serpentine Belt Routing ("C" & "K" With 7.4L)
- Serpentine Belt Routing ("G" With 4.3L, 5.0L & 5.7L)
- Serpentine Belt Routing ("G" With 7.4L)
- Serpentine Belt Routing ("G" & "P" With 6.5L Diesel)
- Serpentine Belt Routing ("G" & "P" With 6.5L Turbo Diesel)
- Mechanical
- Engine Mechanical 6.5L V8 Diesel - VIN [P]
- Engine Identification
- Adjustments
- Trouble Shooting
- Removal & Installation
- Overhaul
- Lubrication
- Torque Specifications
- Engine Specifications
- Engine Mechanical 6.5L V8 Turbo Diesel - VIN [F]
- Engine Identification
- Adjustments
- Trouble Shooting
- Removal & Installation
- Overhaul
- Lubrication
- Torque Specifications
- Engine Specifications
- Engine Mechanical 6.5L V8 Turbo Diesel - VIN [S]
- Engine Identification
- Adjustments
- Trouble Shooting
- Removal & Installation
- Overhaul
- Lubrication
- Torque Specifications
- Engine Specifications
- Engine Mechanical 7.4L V8 - VIN [N]
- Engine Identification
- Adjustments
- Removal & Installation
- Overhaul
- Lubrication
- Torque Specifications
- Engine Specifications
- Engine Mechanical 6.5L V8 Diesel - VIN [P]
- Starter
- Accessory Drive Belts
- Engine Performance
- Engine Controls - Adjustments - 6.5L Diesel
- Application
- Emissions
- EGR Function Testing - General Motors Trucks
- Emission Applications - Diesel
- Emission Control Abbreviations
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Pin Voltage Charts
- Engine Controls - Pin Voltage Charts - 6.5L Diesel
- Introduction
- Pin Voltage Charts
- 6.5L Diesel - "C" & "K" Series With A/T & M/T
- Notes
- PCM Pin Voltage Chart (6.5L Diesel - "C" & "K" Series With A/T & M/T)
- PCM Terminal A-B Connector ID (6.5L Diesel - "C" & "K" Series With A/T & M/T)
- PCM Terminal C-D Connector ID (6.5L Diesel - "C" & "K" Series With A/T & M/T)
- PCM Terminal E-F Connector (6.5L Diesel - "C" & "K" Series With A/T & M/T)
- 6.5L Diesel - "P" Series With 4L80-E A/T
- 6.5L Diesel - "C" & "K" Series With A/T & M/T
- Engine Controls - Pin Voltage Charts - 7.4L
- Engine Controls - Pin Voltage Charts - 6.5L Diesel
- Remove, Overhaul & Install
- Engine Controls - Remove/Install/Overhaul - 6.5L Diesel.
- Engine Controls - Remove/Install/Overhaul - 7.4L
- Introduction
- On-Vehicle Adjustments
- Powertrain Control Module (Pcm)
- Fuel System
- Ignition System
- Throttle Position (TP) Sensor
- Oxygen Sensor
- Torque Specifications
- Sensor Range Charts
- Engine Controls - Specifications - 6.5L Diesel
- System
- Engine Controls - Basic Testing - 6.5L Diesel
- Engine Controls - System/Component Tests - 7.4L
- Model Identification
- Introduction
- Computerized Engine Controls
- Engine Sensors & Switches
- Notes
- A/C On Switch/System Test
- Brake Switch
- Engine Coolant Temperature (ECT) Sensor
- Intake Air Temperature (IAT) Sensor
- Knock Sensor
- Manifold Absolute Pressure (Map) Sensor
- Oxygen Sensor (O2S)
- Oxygen Sensor Heating Element
- Throttle Position (TP) Sensor
- Transmission Range Switch
- Vehicle Speed Sensor (Pm Generator)
- Relays, Solenoids, Motors & Modules
- Fuel System
- Ignition System
- Emission Systems & Sub-Systems
- Miscellaneous ECM/Pcm/VCM Controls
- Diagnostic Charts
- Component Locations
- Wiring Diagrams
- Engine Controls - Tests W/Codes - 6.5L Diesel
- Introduction
- Self-Diagnostic System
- Diagnostic Trouble Code Charts
- Notes
- On-Board Diagnostic (OBD) System Check (Models With Pcm)
- Chart A-1, No Mil (Service Engine Soon Light) (Models W/ Pcm)
- Chart A-2, No Scan Data, Mil (Service Engine Soon) On At All Times Or Will Not Flash Mil (Models With Pcm)
- Chart A-3, Engine Cranks But Will Not Run
- EGR Control Pressure/BARO Sensor Output Check
- DTC 13, Engine Shutoff Solenoid Circuit Fault
- DTC 14, ECT Sensor Circuit Low (High Temperature Indicated)
- DTC 15, ECT Sensor Circuit High (Low Temperature Indicated)
- DTC 16, Vehicle Speed Signal Buffer Fault
- DTC 17, High Resolution Circuit Fault
- DTC 18, Pump Cam Reference Pulse Error
- DTC 19, Crankshaft Position Reference Error
- DTC 21, App No. 1 Circuit High (Models With Pcm)
- DTC 22, App No. 1 Circuit Low (Models With Pcm)
- DTC 23, App No. 1 Circuit Range Fault
- DTC 24, VSS Circuit Low (Transmission Output Speed Signal)
- DTC 25, Accelerator Pedal Position (App) No. 2 Circuit High
- DTC 26, Accelerator Pedal Position (App) No. 2 Circuit Low
- DTC 27, App No. 2 Circuit Range Fault
- DTC 28, Transmission Range Pressure Switch Circuit Fault
- Transmission Range Pressure Switch Combinations
- DTC 29, Glow Plug Relay Circuit Fault
- DTC 31, EGR Control Pressure/BARO Sensor CKT Low (High Vac)
- DTC 32, EGR Circuit Error
- DTC 33, EGR Control Pressure/BARO Sensor CKT High (Low Vac)
- DTC 34, Injection Timing Stepper (Its) Motor Circuit Fault
- DTC 35, Injection Pulse Width Error (Response Time Short)
- DTC 36, Injection Pulse Width Error (Response Time Long)
- DTCS 37/38, TCC Brake Switch Stuck On/Off
- DTC 39, TCC Stuck Off (4L80-E)
- DTC 41, Brake Switch Circuit Fault
- DTC 42, Fuel Temp Circuit Low (High Temp Indicated)
- DTC 43, Fuel Temp Circuit High (Low Temp Indicated)
- DTC 44, EGR Pulse Width Error
- DTC 45, EGR Vent Error
- DTC 46, Malfunction Indicator Light (Mil) Circuit Fault
- DTC 47, IAT Sensor Circuit Low (High Temperature Indicated)
- DTC 48, IAT Sensor Circuit High (Low Temperature Indicated)
- DTC 49, Service Throttle Soon Light Circuit Fault
- DTC 51, Prom Problem (Faulty Or Incorrect Prom)
- DTCS 52/53, System Voltage High Long
- DTC 54, Pcm Fuel Circuit Error
- DTC 56, Injection Pump Calibration Resistor Error
- DTC 57, Pcm 5-Volt Shorted
- DTC 58, Transmission Fluid Temp Sensor Circuit Low (High Temp Indicated) - 4L60-E & 4L80-E
- DTC 59, Transmission Fluid Temp Sensor Circuit High (Low Temp Indicated) - 4L60-E & 4L80-E
- DTC 61, Turbo Boost Sensor Circuit High
- DTC 62, Turbo Boost Sensor Circuit Low
- DTC 63, App No. 3 Circuit High (Models With Pcm)
- DTC 64, App No. 3 Circuit Low (Models With Pcm)
- DTC 65, App No. 3 Circuit Range Fault
- DTC 66, 3-2 Control Solenoid Circuit Fault (4L60-E)
- DTC 67, TCC Solenoid Circuit Fault (4L60-E)
- DTC 68, Transmission Component Slipping (4L80-E)
- DTC 69, TCC Stuck On (4L60-E)
- DTC 69, TCC Stuck On (4L80-E)
- DTC 71, Set/Coast Switch Fault (Models With Pcm)
- DTC 72, Speed Sensor Circuit Loss (Trans Output Speed Signal) - 4L60-E & 4L80-E
- DTC 73, Pressure Control Solenoid Circuit (Current Error)
- DTC 74, Transmission Input Speed Sensor Circuit (4L80-E)
- DTC 75, System Voltage Low
- DTC 76, Resume/ACCEL Switch Fault
- DTC 78, WASTEGATE Solenoid Fault
- DTC 79, Transmission Fluid OVERTEMP - 4L60-E & 4L80-E
- DTC 81, 2-3 Shift Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 82, 1-2 Shift Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 83, TCC PWM Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 84, Accelerator Pedal Position (App) Circuit Fault
- DTC 85, Undefined Ratio Error (4L80-E)
- DTC 86, Low Ratio Error (4L80-E)
- DTC 87, High Ratio Error (4L80-E)
- DTC 88, TDC Offset Error
- DTC'S 91-98, Cylinder Balance Fault
- DTC 99, App No. 2 (5-Volt Reference Fault)
- Wiring Diagrams
- Engine Controls - Tests W/Codes - 7.4L
- Model Identification
- Introduction
- Self-Diagnostic System
- Trouble Code Charts
- Notes
- Code 13, Open Oxygen Sensor Circuit
- Code 14, Coolant Sensor Signal Voltage Low
- Code 15, Coolant Sensor Signal Voltage High
- Code 16, VSS Buffer Fault
- Code 21, TPS Signal Voltage High
- Code 22, TPS Signal Voltage Low
- Code 24, Vehicle Speed Sensor - "C" & "K" Series
- Code 24, VSS Transmission Output Signal - A/T
- Code 28, Transmission Range Pressure Switch
- Code 32, EGR Circuit Error BACKPRESSURE EGR With Sol
- Code 32, EGR Circuit Error With EVRV Solenoid
- Code 32, EGR Circuit Error - "P" Series With Linear EGR
- Code 32, EGR Circuit Error - Series W/ Linear EGR
- Code 33, Map Sensor Signal Voltage High
- Code 34, Map Sensor Signal Voltage Low
- Code 35, Idle Speed Error
- Code 36, Idle Speed Actuator Fault - A/T
- Codes 37/38, TCC Brake Switch On/Off
- Code 39, TCC Stuck Off - 4L80-E Transmission
- Code 42, Ignition Control
- Code 43, Knock Sensor Without Spark Module (Dual Sensors)
- Code 43, Knock Sensor Without Spark Module (Single Sensor)
- Code 43, Knock Sensor With Spark Control Module
- Code 44, Lean Exhaust Indication
- Code 45, Rich Exhaust Indication
- Code 51, Prom Error (Faulty Or Incorrect Prom)
- Code 52, Faulty CALPAK
- Code 52/53, System Voltage High
- Code 55, ECM/Pcm Error
- Code 54, Fuel Pump Circuit
- Code 58, Transmission Fluid Temperature High
- Code 59, Transmission Fluid Temperature Low
- Code 66, 3-2 Control Solenoid CKT Fault 4L60-E Transmission
- Code 67, TCC Solenoid Circuit Check - 4L60-E Transmission
- Code 68, Overdrive Ratio Error - 4L80-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L60-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L80-E Transmission
- Code 72, VSS Circuit Loss Transmission Output Signal
- Code 73, Pressure Control Solenoid (Current Error)
- Code 74, Transmission Input Speed Error 4L80-E Transmission
- Code 75, System Voltage Low
- Code 79, Transmission Fluid Temperature High
- Code 81, Transmission 2-3 Error
- Code 82, Transmission 1-2 Error
- Code 83, TCC Solenoid Circuit Fault
- Code 85, Undefined Gear Ratio
- Code 86, Low Gear Ratio Error
- Code 87, High Gear Ratio Error
- Summary
- Wiring Diagrams
- Engine Controls - Tests W/O Codes - 6.5L Diesel
- Introduction
- Symptoms
- Turbocharger Trouble Shooting
- INTERMITTENTS
- Engine Controls - Tests W/O Codes - Gasoline
- Introduction
- Symptoms
- How To Use This Section
- Hard Start
- Stalls After Starting
- Hesitation, Sag Or Stumble
- Vehicle Surges
- Lack Of Power Or Sluggish
- Engine Backfires
- Cuts Out, Misses
- Rough, Unstable Or Incorrect Idle
- Engine Will Not Idle
- Poor Fuel Economy
- Engine Dieseling/Run-On
- Detonation/Spark Knock
- Excessive Exhaust Emission (Odors)
- Turbocharger Trouble Shooting
- INTERMITTENTS
- Testing & Diagnosis
- Engine Controls - Basic Testing - 6.5L Diesel
- Engine Controls - System/Component Tests - 7.4L
- Model Identification
- Introduction
- Computerized Engine Controls
- Engine Sensors & Switches
- Notes
- A/C On Switch/System Test
- Brake Switch
- Engine Coolant Temperature (ECT) Sensor
- Intake Air Temperature (IAT) Sensor
- Knock Sensor
- Manifold Absolute Pressure (Map) Sensor
- Oxygen Sensor (O2S)
- Oxygen Sensor Heating Element
- Throttle Position (TP) Sensor
- Transmission Range Switch
- Vehicle Speed Sensor (Pm Generator)
- Relays, Solenoids, Motors & Modules
- Fuel System
- Ignition System
- Emission Systems & Sub-Systems
- Miscellaneous ECM/Pcm/VCM Controls
- Diagnostic Charts
- Component Locations
- Wiring Diagrams
- Engine Controls - Tests W/Codes - 6.5L Diesel
- Introduction
- Self-Diagnostic System
- Diagnostic Trouble Code Charts
- Notes
- On-Board Diagnostic (OBD) System Check (Models With Pcm)
- Chart A-1, No Mil (Service Engine Soon Light) (Models W/ Pcm)
- Chart A-2, No Scan Data, Mil (Service Engine Soon) On At All Times Or Will Not Flash Mil (Models With Pcm)
- Chart A-3, Engine Cranks But Will Not Run
- EGR Control Pressure/BARO Sensor Output Check
- DTC 13, Engine Shutoff Solenoid Circuit Fault
- DTC 14, ECT Sensor Circuit Low (High Temperature Indicated)
- DTC 15, ECT Sensor Circuit High (Low Temperature Indicated)
- DTC 16, Vehicle Speed Signal Buffer Fault
- DTC 17, High Resolution Circuit Fault
- DTC 18, Pump Cam Reference Pulse Error
- DTC 19, Crankshaft Position Reference Error
- DTC 21, App No. 1 Circuit High (Models With Pcm)
- DTC 22, App No. 1 Circuit Low (Models With Pcm)
- DTC 23, App No. 1 Circuit Range Fault
- DTC 24, VSS Circuit Low (Transmission Output Speed Signal)
- DTC 25, Accelerator Pedal Position (App) No. 2 Circuit High
- DTC 26, Accelerator Pedal Position (App) No. 2 Circuit Low
- DTC 27, App No. 2 Circuit Range Fault
- DTC 28, Transmission Range Pressure Switch Circuit Fault
- Transmission Range Pressure Switch Combinations
- DTC 29, Glow Plug Relay Circuit Fault
- DTC 31, EGR Control Pressure/BARO Sensor CKT Low (High Vac)
- DTC 32, EGR Circuit Error
- DTC 33, EGR Control Pressure/BARO Sensor CKT High (Low Vac)
- DTC 34, Injection Timing Stepper (Its) Motor Circuit Fault
- DTC 35, Injection Pulse Width Error (Response Time Short)
- DTC 36, Injection Pulse Width Error (Response Time Long)
- DTCS 37/38, TCC Brake Switch Stuck On/Off
- DTC 39, TCC Stuck Off (4L80-E)
- DTC 41, Brake Switch Circuit Fault
- DTC 42, Fuel Temp Circuit Low (High Temp Indicated)
- DTC 43, Fuel Temp Circuit High (Low Temp Indicated)
- DTC 44, EGR Pulse Width Error
- DTC 45, EGR Vent Error
- DTC 46, Malfunction Indicator Light (Mil) Circuit Fault
- DTC 47, IAT Sensor Circuit Low (High Temperature Indicated)
- DTC 48, IAT Sensor Circuit High (Low Temperature Indicated)
- DTC 49, Service Throttle Soon Light Circuit Fault
- DTC 51, Prom Problem (Faulty Or Incorrect Prom)
- DTCS 52/53, System Voltage High Long
- DTC 54, Pcm Fuel Circuit Error
- DTC 56, Injection Pump Calibration Resistor Error
- DTC 57, Pcm 5-Volt Shorted
- DTC 58, Transmission Fluid Temp Sensor Circuit Low (High Temp Indicated) - 4L60-E & 4L80-E
- DTC 59, Transmission Fluid Temp Sensor Circuit High (Low Temp Indicated) - 4L60-E & 4L80-E
- DTC 61, Turbo Boost Sensor Circuit High
- DTC 62, Turbo Boost Sensor Circuit Low
- DTC 63, App No. 3 Circuit High (Models With Pcm)
- DTC 64, App No. 3 Circuit Low (Models With Pcm)
- DTC 65, App No. 3 Circuit Range Fault
- DTC 66, 3-2 Control Solenoid Circuit Fault (4L60-E)
- DTC 67, TCC Solenoid Circuit Fault (4L60-E)
- DTC 68, Transmission Component Slipping (4L80-E)
- DTC 69, TCC Stuck On (4L60-E)
- DTC 69, TCC Stuck On (4L80-E)
- DTC 71, Set/Coast Switch Fault (Models With Pcm)
- DTC 72, Speed Sensor Circuit Loss (Trans Output Speed Signal) - 4L60-E & 4L80-E
- DTC 73, Pressure Control Solenoid Circuit (Current Error)
- DTC 74, Transmission Input Speed Sensor Circuit (4L80-E)
- DTC 75, System Voltage Low
- DTC 76, Resume/ACCEL Switch Fault
- DTC 78, WASTEGATE Solenoid Fault
- DTC 79, Transmission Fluid OVERTEMP - 4L60-E & 4L80-E
- DTC 81, 2-3 Shift Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 82, 1-2 Shift Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 83, TCC PWM Solenoid Circuit Fault - 4L60-E & 4L80-E
- DTC 84, Accelerator Pedal Position (App) Circuit Fault
- DTC 85, Undefined Ratio Error (4L80-E)
- DTC 86, Low Ratio Error (4L80-E)
- DTC 87, High Ratio Error (4L80-E)
- DTC 88, TDC Offset Error
- DTC'S 91-98, Cylinder Balance Fault
- DTC 99, App No. 2 (5-Volt Reference Fault)
- Wiring Diagrams
- Engine Controls - Tests W/Codes - 7.4L
- Model Identification
- Introduction
- Self-Diagnostic System
- Trouble Code Charts
- Notes
- Code 13, Open Oxygen Sensor Circuit
- Code 14, Coolant Sensor Signal Voltage Low
- Code 15, Coolant Sensor Signal Voltage High
- Code 16, VSS Buffer Fault
- Code 21, TPS Signal Voltage High
- Code 22, TPS Signal Voltage Low
- Code 24, Vehicle Speed Sensor - "C" & "K" Series
- Code 24, VSS Transmission Output Signal - A/T
- Code 28, Transmission Range Pressure Switch
- Code 32, EGR Circuit Error BACKPRESSURE EGR With Sol
- Code 32, EGR Circuit Error With EVRV Solenoid
- Code 32, EGR Circuit Error - "P" Series With Linear EGR
- Code 32, EGR Circuit Error - Series W/ Linear EGR
- Code 33, Map Sensor Signal Voltage High
- Code 34, Map Sensor Signal Voltage Low
- Code 35, Idle Speed Error
- Code 36, Idle Speed Actuator Fault - A/T
- Codes 37/38, TCC Brake Switch On/Off
- Code 39, TCC Stuck Off - 4L80-E Transmission
- Code 42, Ignition Control
- Code 43, Knock Sensor Without Spark Module (Dual Sensors)
- Code 43, Knock Sensor Without Spark Module (Single Sensor)
- Code 43, Knock Sensor With Spark Control Module
- Code 44, Lean Exhaust Indication
- Code 45, Rich Exhaust Indication
- Code 51, Prom Error (Faulty Or Incorrect Prom)
- Code 52, Faulty CALPAK
- Code 52/53, System Voltage High
- Code 55, ECM/Pcm Error
- Code 54, Fuel Pump Circuit
- Code 58, Transmission Fluid Temperature High
- Code 59, Transmission Fluid Temperature Low
- Code 66, 3-2 Control Solenoid CKT Fault 4L60-E Transmission
- Code 67, TCC Solenoid Circuit Check - 4L60-E Transmission
- Code 68, Overdrive Ratio Error - 4L80-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L60-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L80-E Transmission
- Code 72, VSS Circuit Loss Transmission Output Signal
- Code 73, Pressure Control Solenoid (Current Error)
- Code 74, Transmission Input Speed Error 4L80-E Transmission
- Code 75, System Voltage Low
- Code 79, Transmission Fluid Temperature High
- Code 81, Transmission 2-3 Error
- Code 82, Transmission 1-2 Error
- Code 83, TCC Solenoid Circuit Fault
- Code 85, Undefined Gear Ratio
- Code 86, Low Gear Ratio Error
- Code 87, High Gear Ratio Error
- Summary
- Wiring Diagrams
- Engine Controls - Tests W/O Codes - 6.5L Diesel
- Introduction
- Symptoms
- Turbocharger Trouble Shooting
- INTERMITTENTS
- Engine Controls - Tests W/O Codes - Gasoline
- Introduction
- Symptoms
- How To Use This Section
- Hard Start
- Stalls After Starting
- Hesitation, Sag Or Stumble
- Vehicle Surges
- Lack Of Power Or Sluggish
- Engine Backfires
- Cuts Out, Misses
- Rough, Unstable Or Incorrect Idle
- Engine Will Not Idle
- Poor Fuel Economy
- Engine Dieseling/Run-On
- Detonation/Spark Knock
- Excessive Exhaust Emission (Odors)
- Turbocharger Trouble Shooting
- INTERMITTENTS
- Theory and Operation
- Engine Controls - Theory & Operation - 6.5L Diesel
- Introduction
- Air Induction System
- Computerized Engine Controls
- Notes
- Powertrain Control Module (Pcm)
- Input Devices
- Notes
- Accelerator Pedal Position (APP) Sensor
- Barometric Absolute Pressure (BARO) Sensor
- Boost Sensor
- Coolant Temperature Sensor (CTS)
- Crankshaft Position Sensor
- Fuel Temperature Sensor
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Pump Cam Signal
- Transmission Fluid Temperature (TFT) Sensor
- Vehicle Speed Sensor (VSS)
- Output Signals
- Fuel System
- Emission Systems
- Self-Diagnostic System
- Miscellaneous Pcm Controls
- Wiring Diagrams
- Engine Controls - Theory & Operation - 7.4L
- Introduction
- Air Induction System
- Computerized Engine Controls
- Notes
- Powertrain Control Module
- Input Devices
- Notes
- A/C On (A/C Request) Signal
- Battery Voltage
- Brake Switch Feedback
- Coolant Temperature Sensor (CTS)
- Cranking Signal
- Digital Ratio Adapter Controller (DRAC)
- EGR Pintle Position
- Fuel Pump Feedback
- Gear Switches
- Knock Sensor (KS)
- Manifold Absolute Pressure (MAP) Sensor
- Intake Air Temperature (IAT) Sensor (Some Engines)
- Oxygen Sensor (O2S)
- Park/Neutral Position (PNP) Switch
- Pressure Switch Manifold (PSM) (4L60-E & 4L80-E Transmission)
- RPM Reference Signal
- Throttle Position (TP) Sensor
- Transmission Temperature Sensor (TTS) (4L60-E, 4L80-E
- Vehicle Speed Sensor (VSS)
- Output Signals
- Notes
- A/C Clutch Relay
- Air Injection Control Solenoid
- Cruise Control Solenoids
- SERVICE ENGINE SOON Light
- EGR Control Solenoid Valve
- Electronic Ignition (EI)
- ESC Timing Retard
- EVRV Solenoid
- Fuel Injectors
- Fuel Module
- Fuel Pump & Fuel Pump Relay
- HEI-EST Ignition
- Idle Air Control (IAC) Valve
- Self-Diagnostics
- Serial Data
- Shift Solenoids (4L60-E, 4L80-E & 4T60-E Transmission)
- Torque Converter Clutch
- Transmission Shift Light (Manual Transmission)
- Fuel System
- Ignition System
- Ignition Timing Control Systems
- Emission Systems
- Self-Diagnostic System
- Miscellaneous Pcm Controls
- Wiring Diagrams
- Engine Controls - Theory & Operation - 6.5L Diesel
- Vacuum Diagrams
- Wiring Diagrams
- General Information
- Abbreviations
- Basic Trouble Shooting
- Basic Trouble Shooting - General Information
- Commonly Used Abbreviations - General Information
- Emission Control Abbreviations
- Engine Performance - Trouble Shooting - General Information
- Brakes
- Anti-Lock Brake Safety Precautions - General Information
- Map - Brake Systems
- Brake Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accelerometers
- Accumulators
- Anchor Pins
- Anti-Lock Brake Control Assembly(Module)
- Anti-Lock Brake Controller
- Anti-Lock Brake Systems
- Axle Seal
- Backing Plates
- Bleeder Screw
- Brake Abs Active Light (Blue)
- Brake Fluid
- Brake Friction Material
- Brake On - Off Switch
- Brake Pads
- Brake Pedals
- Brake Shoe Hardware
- Brake Shoes
- Brake Stoplight Switches
- Brake Warning Light (Amber)
- Brake Warning Light (Red)
- Bulb Sockets
- Bulbs And LEDS
- Caliper Hardware
- Caliper Mounting Pin
- Caliper Piston
- Caliper Shim
- Caliper Slider Pin (Bolt) Dust Boot
- Caliper Slider Pin (Bolt)
- Calipers
- Combination Valve
- Controllers
- Digital Ratio Axle Controllers And Buffers (Drab And Dram)
- Disable Switches
- Drums
- Electrical Brake Pumps
- Electrical Park Motor
- Electrical Pumps And Motors
- Electro-Magnetic Interference
- Electronic Brake Control Modulator
- Electronic Brake Distribution
- Electronic Brake Traction Control Module
- Electronic Controllers
- Electronic Traction Control
- External Brake Cable
- Flow Control Valve
- Fluid Level Sensor Switches
- Fluid
- Four Wheel Drive Switches
- Friction Material
- G Sensors
- Gaskets
- Gravitational Switches
- Grease Seal
- Height Sensing Proportioning Valve
- High Pressure Accumulator
- Hoses
- Hub
- Hydraulic Control Unit
- Hydraulic Modulators
- Hydro-Boosters
- Hydro-Electric Boosters (POWERMASTER)
- Ignition Disable Switches
- Lamp Driver Relay
- Lateral Acceleration Switches
- LEDS
- Lenses
- Low Pressure Accumulator
- Lug Nut
- Master Cylinder Cover Gasket
- Master Cylinders
- Modulators
- Motor Pack
- Motors
- Pads
- Parking Brake Cable
- Parking Brake Mechanism
- Parking Brake Shoes
- Parking Brake Switches
- Parking Brake Systems
- Pedal Travel Switches
- Pedals
- Power Distribution Center
- POWERMASTER
- Pressure Differential Switches
- Pressure Switches
- Pressure Transducers
- Proportioning Valve
- Pumps
- Relays
- RELUCTOR (Speed) Ring
- Rotors
- Self-Adjusting Systems
- Shoe Hardware
- Shoes
- Sockets
- Speed Sensor (RELUCTOR) Ring
- Speed Sensors (Electronic Wheel And Vehicle)
- Star Wheel
- Steel Brake Lines
- Stoplight Switches
- Stroke Sensor
- Switches
- Tires
- Tone Ring
- Toothed Rings (Tone Wheel)
- Traction Control System (TCS)
- Transfer Tubes
- Vacuum Boosters
- Vacuum Hoses
- Valves
- Wear Indicator
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheel Cylinders
- Wiring Harnesses
- Yaw Rate Sensor
- Brake System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Brake Systems
- Map - Routine Inspection Reference Guide
- Routine Inspection Reference Guide
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Maintenance Overview
- Antifreeze/Coolant
- Visual Inspection
- Radiator Cap Test
- Engine Fan
- Cooling System Power Flush And Refill
- Belts (Except Timing Belts)
- Belt TENSIONER
- Automatic Transmission Fluid
- Automatic Transmission Fluid Exchange & Filter Replacement
- Engine Oil
- Air Filters
- Cabin Air Filter
- Brake Fluid
- Battery
- Battery Cables
- Power Steering
- Power Steering Fluid
- Wiper Blades
- Routine Inspection CHECKSHEET
- Routine Inspection - UICS
- Brake Systems
- Drivetrain And Transmission
- Notes
- Automatic Transmission Fluid
- Clutch Master Cylinders
- Cooler Lines
- Coolers
- Differential Fluid
- Drain Plugs And Gaskets
- Filters And Screens
- Fluids And Lubricants
- Hoses, Lines, And Tubes
- Hydraulic Fluid
- Lubricants
- Manual Transmission Fluid
- Mounts (Engine, Transaxle And Transmission)
- Transfer Case Fluid
- Vacuum Hoses
- Electrical Systems
- Engine Performance And Maintenance
- Notes
- Accessory Belts
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Pump Belts
- Batteries
- Battery Connectors
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Chemical Engine DECARBONIZATION
- Combustion Chamber Cleaning
- Coolant Recovery Tanks
- Coolant
- Distributor Caps
- Distributor Rotors
- Engine Cooling Systems
- Engine DECARBONIZATION
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel System Cleaning Service
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Ignition Wires (Secondary)
- Intake Cleaning
- O2 Sensors
- PCV Breather Elements
- PCV Valves
- Radiator Caps And Pressurized Expansion Tank Caps
- Spark Plugs
- Thermostats And Housings
- Throttle Body Cleaning
- Timing Belts
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Exhaust Systems
- Heating, Ventilation And Air Conditioning Systems
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Wheel & Tire Supplement
- Reason Code Explanation
- Automotive Terminology & Definitions
- Routine Inspection Reference Guide
- Check Lists
- Computer Relearn Procedures
- Driveline/Axles
- Drive Axle Noise Diagnosis - General Information
- Gear Tooth Contact Patterns - General Information
- Map - Drive Train & Transmission
- Drive Train & Transmission Systems
- Drivetrain And Transmission
- Notes
- Actuators (Electrical)
- Actuators (Vacuum)
- Automatic Transmission / Transaxle Assemblies/CVTS
- Automatic Transmission Fluid
- Axles
- Bearings And Races
- Bell Cranks
- Bell Housings
- Bushings (External)
- Cables (Speedometer)
- Cables (TV, Detent And Shift)
- Carrier Bearings
- Clutch Cables And Cable Housings
- Clutch Discs (Manual Transmissions)
- Clutch Forks
- Clutch Linkages (Mechanical)
- Clutch Master Cylinders
- Clutch Pedals
- Clutch Pivots
- Clutch Pressure Plates
- Clutch Release Bearings
- Clutch Slave Cylinders (Concentric)
- Clutch Slave Cylinders (Conventional Or External)
- Companion Flanges
- Connectors
- Cooler Bypass Valves
- Cooler Lines
- Coolers
- CV Joints
- Differential And Final Drive Assemblies
- Differential Fluid
- Dip Stick Tubes
- Dip Sticks (Fluid Level Indicators)
- Dowel Pins, Guides And Pilot Holes
- Drain Plugs And Gaskets
- Drive Shaft Flanges
- Drive Shafts And Half Shafts
- Dust Boots
- Engine Mounts
- Exciter Rings
- Filler Tubes
- Filters And Screens
- Flanges
- Flex Plates
- Fluid Level Indicators
- Fluids And Lubricants
- Flywheels
- Force Motors
- Gaskets
- Guides
- Half Shafts
- Hoses, Lines, And Tubes
- Housings (Bell, Case, Tail(Extension) And Auxiliary)
- Hydraulic Fluid
- Intermediate Shaft Support Bearings
- Key Interlock Systems
- Limited Slips
- Lines
- Linkages (External)
- Locking Hub Assemblies
- Locking Hub Control Knobs
- Lubricants
- Manual Transmission Fluid
- Manual Transmission/Transaxle Assemblies
- Metal Clad Seals
- METALASTIC Joints
- Modulator Pins
- Modulators
- Mounts (Engine, Transaxle And Transmission)
- Odometer Drives (Mechanical)
- Odometer Heads (Mechanical)
- Oil Pans
- Pans
- Pilot Holes
- Pressure Plates
- Pressure Switches
- Races
- Rubber Joints (METALASTIC)
- Screens
- Seals (Metal Clad)
- Seals
- Selector Interlock Systems
- Sensors
- Servos
- Shift Interlock Systems (Selector And Key Interlock Systems)
- Side Covers
- Slip Yokes
- Solenoids
- Speed Sensors (Electronic Wheel And Vehicle)
- Speedometer- Driven Gear Housing
- Speedometer/Odometer Drives (Mechanical)
- Speedometer/Odometer Heads (Mechanical)
- Speedometers/Odometers (Electronic)
- Switches
- Tone Wheels
- Toothed Rings (Tone Wheel)
- Torque Converters
- Transaxle Mounts
- Transducers (Transmission)
- Transfer Case Assemblies
- Transfer Case Fluid
- Transmission Coolers
- Transmission Mounts
- Transmission Pans
- Transmission Range Indicators (PRNDL)
- Tubes
- Universal Joints (CARDAN Or Cross Type)
- Vacuum Controls
- Vacuum Hoses
- Vacuum Motors
- Vacuum-Operated Switches
- Vehicle Speed Sensors
- Vents
- Vibration Dampers
- Wheel Attachment Hardware
- Wheel Speed Sensors
- Wiring Harnesses And Connectors
- Yokes And Slip Yokes
- Reason Code Explanation
- Automotive Terminology & Definitions
- Trouble Shooting - Clutches - General Information
- DTC Index
- Electrical
- Map - Electrical Systems
- Electrical Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Actuator Motors (Electric)
- Actuator Motors (Vacuum)
- Air Bags
- Alternators And Generators
- Amplifiers
- Antennas
- Batteries
- Battery Cables, Wires And Connectors
- Battery Cables
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belts
- Bulb Sockets
- Bulbs, Sealed Beams And LEDS
- Cd Players
- Cigarette Lighter Assemblies
- Circuit Breakers
- Clutch Switches
- Connectors
- Control Modules
- Cruise Control Brake Switches
- Cruise Control Cables
- Cruise Control Clutch Switches
- Cruise Control Linkages And Cables
- Cruise Control Reservoirs
- Cruise Control Tubes
- Cruise Control Vacuum Dump Release Valves
- Cruise Control Vacuum Hoses, Tubes And
- Cruise Control Vehicle Speed Sensors
- Defoggers
- Defrosters
- Delays
- Dimmers
- Electric Heaters
- Equalizers
- Fuse Blocks
- Fuse Boxes And Blocks
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gauges
- Generators
- Ground Cables And Straps
- Ground Straps
- Headlight Adjusters
- Heating Elements (Defrosters, Defoggers, Electric Heaters And Seats)
- Horns And Sirens
- Ignition Switches
- Indicator Lights
- Keyless Entry Keypads And Transmitters
- Keyless Entry Transmitters
- LEDS
- Lenses
- Microphones
- Mirrors (ELECTROCHROMATIC And Heated)
- Motors
- Neutral Safety Switches
- Odometers, Speedometers And Tachometers (Cable Driven)
- Odometers
- Power Distribution Center
- Pulleys
- Receivers, Amplifiers, Equalizers And Sub-Woofer Volume Controls
- Relay Boxes
- Relays
- Sealed Beams
- Seat Heaters
- Security Alarm Sensors
- Sirens
- Solenoids
- Speakers And Microphones
- Speedometer And Tachometer Linkages And Cables
- Speedometer Cables
- Speedometers
- Starters
- Sub-Woofer Volume Control
- Switches
- Tachometer Cables
- Tachometers
- Tape Players And Cd Players
- TENSIONERS
- Timers
- Transceivers
- Transducers
- Vacuum Accumulators (Reservoirs)
- Voltage Regulators
- Washer Fluid Level Senders
- Washer Pumps
- Wiper Arms And Blades
- Wiper Blades
- Wiper Hoses And Nozzles
- Wiper Linkages
- Wiper Nozzles
- Wiper Pump Reservoirs
- Wiring Harnesses And Connectors
- Battery, Starting & Charging System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Electrical Systems
- Using lemon2025'S System Wiring Diagrams
- Map - Electrical Systems
- Engine
- Engine Overhaul Procedures - General Information
- * Please Read This First *
- Description
- Engine Identification
- Inspection Procedures
- Cleaning Procedures
- Component Cleaning
- Cylinder Head Replacement
- Cylinder Head Overhaul
- Pistons, Connecting Rods & Bearings
- Crankshaft & Main Bearings
- Camshaft
- Timing Chains & Belts
- Timing Gears
- Oil Pump
- Break-In Procedure
- General Cooling System Service - General Information
- Engine Overhaul Procedures - General Information
- Engine Performance
- Compressed Natural Gas Safety Precautions
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Engine Performance And Maintenance (Including Exhaust Systems)
- Engine Performance & Maintenance CHECKSHEET
- Engine Performance And Maintenance
- Notes
- Accelerator Pedal Position Sensor
- Accessory Belts
- Accessory Pulleys
- Air Conditioning Cycling Switches
- Air Conditioning Pressure Sensors
- Air Ducts And Tubes
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Fuel Ratio Sensors
- Air Injection Control Solenoids
- Air Plenums
- Air Pump Belts
- Air Pumps (Electric Driven)
- Air Tubes
- Aspirator, Check And DECEL Valves
- Baffles
- Ballast Primary Supply Resistor Wires
- Ballast Resistors And Primary Supply Resistors
- Barometric Pressure Sensors
- Batteries
- Battery Cables, Wires And Connectors
- Battery Connectors
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Belt-Driven Air Pumps
- Boost Control Mechanism
- Camshaft Position Sensors
- Carburetors And Chokes
- Casting Core Plugs And Expansion Plugs
- Charge Air Coolers ""INTERCOOLERS"" (CAC)
- Check Valves
- Chemical Engine DECARBONIZATION
- Chokes
- Clutch Pedal Position Switches
- Cold Start Injectors
- Combustion Chamber Cleaning
- Connectors
- Coolant Recovery Tanks
- Coolant
- Cooling Fan Motor Modules
- Cooling Fan Motor Relays And Modules
- Cooling Fan Motor Resistors
- Cooling Fan Motor Sensors And Switches
- Cooling Fan Motor Switches
- Cooling Fan Motors
- Crankshaft Position Sensors
- Cylinder Deactivation Solenoid
- Cylinder Head Assemblies
- DECEL Valves
- Deflectors
- Dip Stick Tubes
- Dip Sticks And Tubes
- Distributor Advances And Retarders (Mechanical And Vacuum)
- Distributor Boots And Shields
- Distributor Caps
- Distributor Retarders (Mechanical And Vacuum)
- Distributor Rotors
- Distributor Shields
- Distributors
- Early Fuel Evaporation Valves (Heat Riser Assemblies)
- EGR Coolers
- EGR Exhaust Manifold Passages
- EGR Intake And Exhaust Manifold Passages
- EGR Plates And Coolers
- Electronic Spark Control Modules
- Electronic Transmission Control Devices
- Electronic Transmission Feedback Devices
- Engine Coolant Temperature Sensors
- Engine Cooling Systems
- Engine Covers (Oil Pan, Valve Cover, Timing Cover)
- Engine DECARBONIZATION
- Engine Oil Canisters
- Engine Oil Coolers (External)
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil Gaskets
- Engine Oil Pressure Gauges (Mechanical)
- Engine Oil
- Evaporative Emissions (EVAP) Canister Filters
- Evaporative Emissions (EVAP) Canister Purge Devices
- Evaporative Emissions (EVAP) Canisters
- Evaporative Emissions (EVAP) Feedback Devices
- Exhaust Gas RECIRCULATION Devices
- Exhaust Gas RECIRCULATION Feedback Devices
- Expansion Plugs
- Fan Control Sensor
- Fuel Accumulators And Dampers
- Fuel And Cold Start Injectors
- Fuel Caps
- Fuel Dampers
- Fuel Delivery Check Valves
- Fuel Distributors (BOSCH Cis)
- Fuel Filler Necks And RESTRICTORS
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel Level Senders
- Fuel Pressure Regulators
- Fuel Pumps (In-Tank, External, Electrical Or Mechanical)
- Fuel Rails
- Fuel RESTRICTORS
- Fuel System Cleaning Service
- Fuel Tanks
- Fuel
- Gaskets
- Grommets (Valve Cover)
- Harmonic Dampers
- Heater Control Valves
- Heater Cores
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tube Couplers, Connectors And Clamps
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Housings
- Idle Air Controls
- Idle Speed Control Actuators
- Ignition Boots
- Ignition Coil Towers
- Ignition Coils
- Ignition Control Modules (ICM)
- Ignition Switches
- Ignition Terminals
- Ignition Wires (Secondary)
- Inertia Fuel Shut-Off Switches
- Intake Air Temperature Sensors
- Intake Cleaning
- Intake Manifolds
- In-Tank Fuel Strainers
- INTERCOOLERS
- Knock Sensors
- Liquid Vapor Separators
- Long Block Assemblies
- Manifold Absolute Pressure (Map) Sensors
- Mass Air Flow (MAF) Sensors
- Metal Air Manifolds And Pipes
- Metal Air Pipes
- Mix Control Solenoids
- Motor Mounts
- O2 Sensors
- Oil Pans
- Oil Pressure Sending Units
- Oil Pump Pick-Up Screens
- Oil Pumps
- O-Rings, Gaskets, Seals And Spring Locks
- Park Neutral Position Switches
- PCV Breather Elements
- PCV Orifices
- PCV Valves
- Pick-Up Assemblies (Includes Magnetic, Hall Effect And Optical)
- Power Steering Pressure Sensors
- Powertrain Control Modules (Pcm) And Prom
- Powertrain Control Prom
- Pressurized Expansion Tank Caps
- Radiator / Cooling Fan Blades
- Radiator / Cooling Fan Clutches
- Radiator Caps And Pressurized Expansion Tank Caps
- Radiators
- Roll Over Valves
- Sealing Compounds
- Seals
- Secondary Air Injection System Management Devices
- Sensors
- Short Block Assemblies
- Shrouds, Baffles And Deflectors
- Spark Plugs
- Spring Locks
- Super Chargers
- Switches
- Thermal Vacuum Valves
- Thermostatic Air Door Assemblies
- Thermostats And Housings
- Throttle Bodies
- Throttle Body Cleaning
- Throttle Cables
- Throttle Linkages And Cables
- Throttle Position Sensors
- Throttle Position Switches
- Timing Belt Sprockets
- Timing Belts
- Timing Covers
- Torque Struts
- Transmission Range Switches
- Tube Clamps
- Tube Connectors
- Tube Couplers
- Tubes
- Turbo Chargers
- Vacuum Connections
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Vacuum Regulator Solenoids
- Vacuum Tubes
- Valve Covers
- Vehicle Speed Senors
- Volume Air Flow Sensors
- Waste Gate And Boost Control Mechanisms
- Waste Gate Control Solenoids
- Water Pumps (Electric)
- Water Pumps (Non-Electric)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
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- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Waveforms - Injector Pattern Tutorial - General Information
- * Please Read This First *
- Purpose Of This Article
- Is A Lab Scope Necessary?
- The Two Types Of Injector Drivers
- The Two Ways Injector Circuits Are Wired
- Interpreting Injector Waveforms
- Current Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Voltage Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Map - Exhaust Systems
- Exhaust Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Catalytic Converters
- Exhaust And Tail Pipes
- Exhaust Connections
- Hangers
- Heat Risers (Mechanical EFE Devices)
- Heat Shields
- Manifolds (Cast And Tube Type)
- Mechanical EFE Devices
- Muffler Valve
- Mufflers And Resonators
- Reason Code Explanation
- Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Map - Heating, Ventilation, & Air Conditioning
- Heating, Ventilation & Air Conditioning Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accumulators
- Actuators (Electrical)
- Actuators (Vacuum)
- Air Conditioning Fittings
- Air Conditioning Hoses
- Air Conditioning Metal Lines
- Air Control Doors
- Air Dams (External)
- Air Distribution System
- Belts
- Blend Doors
- Blower Fans (Blower Wheel Or Squirrel Cage)
- Blower Motors
- Blower Resistors
- Blower Switches
- Cabin Air Filters
- Circuit Breakers
- Compressor Clutch Assemblies
- Compressors
- Condenser Air Seals
- Condenser Fan Motors
- Condensers
- Connectors
- Control Cables
- Control Heads (Function Selectors)
- Control Linkages
- Control Modules
- Coolant
- Cooling Fan Blades
- Cooling Fan Clutches
- Cooling Fan Motors
- Evaporator Drain Tubes
- Evaporator Filters
- Evaporator Pressure Regulators (EPRS)
- Evaporators
- Expansion Valves
- Function Selectors
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gaskets
- Heater Cases
- Heater Control Valves
- Heater Cores
- Heater Hoses
- High Pressure Relief Valves (HPRV)
- Idlers
- In-Line Filters
- Metal Fittings
- Metal Lines
- Mix And Air Control Doors (Blend Doors)
- ORIFACE Tubes
- O-Rings
- Pilot-Operated Absolutes (POAS)
- Plenums
- Pressure Control Valves
- Pressure Sensors
- Pulleys
- Radiators
- Receiver-DRIERS
- Refrigerant Oil
- Refrigerant
- Relays
- Seals
- Service Ports
- Spring Lock Couplings
- Suction Throttling Valves (STVS)
- Switches (Electrical)
- TENSIONERS
- Thermistors And Pressure Sensors
- Thermostats And Housings
- Vacuum Hoses And Tubes
- Vacuum Reservoirs
- Vacuum Tubes
- Valves In Receiver (VIRS)
- Water Pumps (Electric Auxiliary)
- Wiring Harnesses And Connectors
- Heating, Ventilation & Air Conditioning System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Heating, Ventilation & Air Conditioning Systems
- Map - Heating, Ventilation, & Air Conditioning
- Hoist/Jack
- Identification
- Metric Conversions
- Maintenance Reminder Light (Reset Procedures)
- Engine Oil Replacement Reminder
- Notes
- Engine Oil Replacement Reminder Reset - Procedure 01
- Engine Oil Replacement Reminder Reset - Procedure 02
- Engine Oil Replacement Reminder Reset - Procedure 03
- Engine Oil Replacement Reminder Reset - Procedure 04
- Engine Oil Replacement Reminder Reset - Procedure 05
- Engine Oil Replacement Reminder Reset - Procedure 06
- Engine Oil Replacement Reminder Reset - Procedure 07
- Engine Oil Replacement Reminder Reset - Procedure 08
- Engine Oil Replacement Reminder Reset - Procedure 09
- Engine Oil Replacement Reminder Reset - Procedure 10
- Engine Oil Replacement Reminder Reset - Procedure 11
- Engine Oil Replacement Reminder Reset - Procedure 12
- Engine Oil Replacement Reminder Reset - Procedure 13
- Engine Oil Replacement Reminder Reset - Procedure 14
- Engine Oil Replacement Reminder Reset - Procedure 15
- Engine Oil Replacement Reminder Reset - Procedure 16
- Engine Oil Replacement Reminder Reset - Procedure 17
- Engine Oil Replacement Reminder Reset - Procedure 18
- Engine Oil Replacement Reminder Reset - Procedure 19
- Engine Oil Replacement Reminder Reset - Procedure 20
- Engine Oil Replacement Reminder Reset - Procedure 21
- Engine Oil Replacement Reminder Reset - Procedure 22
- Engine Oil Replacement Reminder Reset - Procedure 23
- Engine Oil Replacement Reminder Reset - Procedure 24
- Engine Oil Replacement Reminder Reset - Procedure 25
- Engine Oil Replacement Reminder Reset - Procedure 26
- Engine Oil Replacement Reminder Reset - Procedure 27
- Engine Oil Replacement Reminder Reset - Procedure 28
- Engine Oil Replacement Reminder Reset - Procedure 29
- Engine Oil Replacement Reminder Reset - Procedure 30
- Engine Oil Replacement Reminder Reset - Procedure 31
- Engine Oil Replacement Reminder Reset - Procedure 32
- Engine Oil Replacement Reminder Reset - Procedure 33
- Engine Oil Replacement Reminder Reset - Procedure 34
- Engine Oil Replacement Reminder Reset - Procedure 35
- Engine Oil Replacement Reminder Reset - Procedure 36
- Engine Oil Replacement Reminder Reset - Procedure 37
- Emissions Maintenance Reminder (Reminder Flag)
- Emissions Maintenance Reminder (Warning Light)
- Emissions Maintenance Reminder (Check Engine Light)
- Diesel Fuel Filter Replacement Reminder
- Maintenance Service Reminder
- Timing Belt Replacement Reminder
- Transmission Fluid Replacement Reminder
- Tire Pressure Monitor System Reminder
- Notes
- TPMS Reminder Reset - Procedure 01
- TPMS Reminder Reset - Procedure 02
- TPMS Reminder Reset - Procedure 03
- TPMS Reminder Reset - Procedure 04
- TPMS Reminder Reset - Procedure 05
- TPMS Reminder Reset - Procedure 06
- TPMS Reminder Reset - Procedure 07
- TPMS Reminder Reset - Procedure 08
- TPMS Reminder Reset - Procedure 09
- TPMS Reminder Reset - Procedure 10
- TPMS Reminder Reset - Procedure 11
- TPMS Reminder Reset - Procedure 12
- TPMS Reminder Reset - Procedure 13
- TPMS Reminder Reset - Procedure 14
- TPMS Reminder Reset - Procedure 15
- TPMS Reminder Reset - Procedure 16
- TPMS Reminder Reset - Procedure 17
- TPMS Reminder Reset - Procedure 18
- TPMS Reminder Reset - Procedure 19
- TPMS Reminder Reset - Procedure 20
- TPMS Reminder Reset - Procedure 21
- TPMS Reminder Reset - Procedure 22
- TPMS Reminder Reset - Procedure 23
- TPMS Reminder Reset - Procedure 24
- TPMS Reminder Reset - Procedure 25
- TPMS Reminder Reset - Procedure 26
- TPMS Reminder Reset - Procedure 27
- TPMS Reminder Reset - Procedure 28
- TPMS Reminder Reset - Procedure 29
- TPMS Reminder Reset - Procedure 30
- TPMS Reminder Reset - Procedure 31
- TPMS Reminder Reset - Procedure 32
- TPMS Reminder Reset - Procedure 33
- TPMS Reminder Reset - Procedure 34
- TPMS Reminder Reset - Procedure 35
- TPMS Reminder Reset - Procedure 36
- TPMS Reminder Reset - Procedure 37
- Engine Oil Replacement Reminder
- Restraints
- RPO Codes
- RPO Code Description (Codes 001-19F)
- RPO Code Description (Codes 19H-2EL)
- RPO Code Description (Codes 2F1-44I)
- RPO Code Description (Codes 44L-5J9)
- RPO Code Description (Codes 5K0-6FF)
- RPO Code Description (Codes 6FG-76A)
- RPO Code Description (Codes 76D-7XD)
- RPO Code Description (Codes 7XF-8M0)
- RPO Code Description (Codes 8M1-9C0)
- RPO Code Description (Codes 9C1-A0F)
- RPO Code Description (Codes A0G-Ar4)
- RPO Code Description (Codes Ar5-BCP)
- RPO Code Description (Codes BCQ-C12)
- RPO Code Description (Codes C13-Cur)
- RPO Code Description (Codes Cut-Dir)
- RPO Code Description (Codes Dr7-EHE)
- RPO Code Description (Codes EHF-F5P)
- RPO Code Description (Codes F5Q-G1V)
- RPO Code Description (Codes G1W-HFN)
- RPO Code Description (Codes HFO-JRG)
- RPO Code Description (Codes JRH-KLY)
- RPO Code Description (Codes KLZ-LQX)
- RPO Code Description (Codes LQY-MW9)
- RPO Code Description (Codes MWE-ODK)
- RPO Code Description (Codes ODL-Ora)
- RPO Code Description (Codes Orb-PDE)
- RPO Code Description (Codes PDF-QH6)
- RPO Code Description (Codes QH7-R8D)
- RPO Code Description (Codes R8E-T07)
- RPO Code Description (Codes T08-TJ0)
- RPO Code Description (Codes TJ1-U10)
- RPO Code Description (Codes U11-Us9)
- RPO Code Description (Codes USB-VG9)
- RPO Code Description (Codes VGA-W5Y)
- RPO Code Description (Codes W5Z-XE3)
- RPO Code Description (Codes XE4-Y9Z)
- RPO Code Description (Codes Ya2-ZD9)
- RPO Code Description (Codes ZDE-ZZZ)
- Specifications Index
- Steering
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Steering & Suspension Systems
- Wheel And Tire
- Steering & Suspension CHECKSHEET
- Wheels & Tires CHECKSHEET
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Notes
- Active Handling
- Active Suspension Control Modules
- Active Variable Ratio Steering
- Active Yaw Control
- Adaptive Cruise Control
- Advance TRAC
- Air Bags
- Air Ride Control Modules
- Air Ride Suspension Torsion Springs (Counter Balancing)
- Air Ride Suspension
- Air Ride Tubes
- Air Shocks And Air Struts
- Air Spring Valves
- Air Springs
- Air Suspension Control Valves
- Air Suspension DRIERS
- Axle Acceleration Sensor
- Ball Joints
- Body Acceleration Sensor
- Bushings
- Center Links
- Compressors
- Continuous Damping Control
- Control Arm Shafts
- Control Arms
- Control Modules
- Distance Regulation Control Module
- Distance Regulation Sensor
- Drag Links
- Dynamic Stability Control
- Dynamic Stability Traction Control
- Electronic Ride Control Shocks And Struts
- Electronic Stability Control
- Electronic Suspension System
- Flex Couplers
- Gaskets
- Height Sensors
- Hydraulic Hoses
- Hydraulic Power Steering Pumps
- Hydraulic Suspension Hoses
- Hydraulic Suspension Pumps
- Idler Arms
- Intermediate Shaft U-Joints
- King Pins
- Modules
- Pitman Arms
- Power Steering Belts
- Power Steering Coolers
- Power Steering Fluid
- Power Steering Hoses
- Power Steering Lines (Steel)
- Power Steering Pumps - Electric
- Power Steering Pumps
- Radar Sensor
- Radius Arms
- Relay Rods
- Relays
- Sensors
- Shock Absorbers, Strut Cartridges And Strut Assemblies
- Spindles
- Springs, Coil, Leaf And Torsion Bars
- STABILITRAC
- Stability Management System
- Steering Angle Sensor
- Steering Arms
- Steering Couplers
- Steering Dampers
- Steering Gears (Except Rack And Pinion)
- Steering Gears, Rack And Pinion
- Steering Knuckles
- Strike Out Bumpers
- Strut Bearing Plate Assemblies
- Strut Rods
- Suspension Pumps (Hydraulic)
- Sway Bar Links
- Sway Bar Mounting Bushings
- Sway Bars
- Switches
- Tie Rod Ends (Inner And Outer)
- Tire Pressure Monitoring System
- Tire Pressure Sensors
- Tires
- Torque Sensor
- Torsion Springs
- Track Bar Bushings
- Track Bars
- Trailing Arm Bushings
- Trailing Arms
- Valve Stems
- Vehicle Dynamics Control
- Vehicle Speed Sensor
- Vehicle Stability Assist
- Vehicle Stability/Skid Control
- Warning Lamps
- Wheel Alignment
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheels (Rims)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Wheel Alignment Theory & Operation - General Information
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- A/C Compressor Clutch Controls
- General Servicing
- A/C Compressor Refrigerant Oil Checking
- A/C Compressor Servicing
- A/C System Specifications
- Cabin Air Filter (Special Applications) - General Information
- HVAC System General Servicing.
- HVAC Control Systems
- A/C-Heater System
- Specifications
- Description
- Operation
- Adjustments
- Trouble Shooting
- Notes
- A/C Compressor Inoperative
- Blower Motor Does Not Operate
- Blower Motor Does Not Operate In High Speed
- Blower Motor Operates In High Speed Only
- Display Does Not Dim Properly
- A/C Does Not Work
- Front Ventilation Controls Do Not Operate
- Front Mode Door Motor Does Not Operate
- Front Temperature Door Motor Does Not Operate
- RECIRCULATION Door Motor Fails In Vent Position
- RECIRCULATION Door Motor Fails In RECIRCULATION Position
- Front Mode Door Operates With Front Blower Switch Off
- Refrigerant System Diagnosis
- CCOT System Trouble Shooting Flow Charts
- Testing
- Removal & Installation
- Torque Specifications
- Wiring Diagram
- Heater System
- Description
- Operation
- Adjustments
- Trouble Shooting
- Notes
- Blower Motor Inoperative
- Blower Motor Operates At Low &/Or Medium Speed Only
- Blower Motor Operates At High Speed Only
- Auxiliary Blower Motor Inoperative
- Auxiliary Blower Motor Operates At Low &/Or Medium Speed Only
- Auxiliary Blower Motor Does Not Operate In Medium Speed
- Auxiliary Blower Motor Does Not Operate In Low Speed
- Front Ventilation Controls Do Not Operate
- Front Mode Door Motor Does Not Operate
- Front Temperature Door Motor Does Not Operate
- RECIRCULATION Door Motor Fails In Vent Position
- RECIRCULATION Door Motor Fails In RECIRCULATION Position
- Front Mode Door Operates With Front Blower Switch Off
- Rear Ventilation Controls Do Not Operate From Either Control Module
- Rear Auxiliary Mode Door Does Not Operate From Either Control Module
- Rear Aux Temp Door Does Not Operate From Either Control Module
- Rear Control Module Does Not Control Rear Auxiliary Doors
- Front Control Module Does Not Control Rear Auxiliary Doors
- Rear Auxiliary Mode Door Motor Does Not Operate From Front Control Module
- Rear Auxiliary Temp Door Motor Does Not Operate From Front Control Module
- Rear Auxiliary Mode Door Motor Does Not Operate From Rear Control Module
- Rear Auxiliary Temp Door Motor Does Not Operate From Rear Control Module
- Insufficient Heat Diagnosis Flow Charts
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- A/C-Heater System
- Maintenance
- Procedures
- Maintenance Information
- Model Identification
- Maintenance Service Information
- Service Point Locations
- Additional Service Information (Diesel Models)
- Additional Service Information (Gasoline Models)
- Additional Service Information (1996 Models)
- Brake Service Information
- Additional Service Information (Heavy Duty Models)
- Axle & Transmission Identification
- Service Labor Times
- Wheel & Tire Specifications
- Battery Specifications
- Cautions & Warnings
- Supplemental Restraint System (Air Bag)
- Air Conditioning Servicing
- Anti-Lock Brake System
- Axle Fluid
- Replacing Blown Fuses
- Battery Warning
- Brake Pad Wear Indicator
- Brake Pad Replacement
- Catalytic Converter
- Coolant (DEX-Cool 1995-96 Models)
- Coolant (Propylene-Glycol Formulations)
- Diesel Fuel Anti-Fungal Additives
- Diesel Fuel Contamination
- Diesel Fuel Requirements
- Jump Starting (Turbo Diesel)
- Starting Fluid Use (Turbo Diesel)
- Electrostatic Discharge Sensitive (ESD) Parts
- Fuel System Service
- Halogen Bulbs
- Radiator Fan
- Turbocharged Models (Turbo-Diesel)
- Warranty Information
- Fuses & Circuit Breakers
- Maintenance Information
- Procedures
- Restraints
- Air Bag, SRS
- Air Bag Restraint System
- Identification
- Description & Operation
- System Operation Check
- Post-Collision Inspection
- INTERMITTENTS & Poor Connections
- Service Precautions
- Disabling & Activating Air Bag System
- Adjustments
- Disposal Procedures
- Removal & Installation
- Diagnosis & Testing
- Diagnostic Charts
- Sir Diagnostic System Check
- Chart A - DERM Integrity Check
- Chart B - Air Bag Warning Lamp Comes On Steady
- Chart C - Air Bag Warning Lamp Does Not Come On
- Chart D - Air Bag Warning Lamp Does Not Come On Steady During Cranking
- Chart F - DERM Cannot Communicate Through Serial Data Line
- DTC 14 - Arming Sensor Disconnected
- DTC 21 - Driver Initiator Circuit Resistance High
- DTC 22 - Driver Initiator Circuit Resistance Low
- DTC 23 - Driver Initiator Circuit Voltage High
- DTC 24 - Driver Initiator Circuit Voltage Low
- DTC 25 - Driver Initiator Circuit Short To Ignition
- DTC 26 - Driver Initiator Circuit Open
- DTC 28 - Current Sink Or Source Failure
- DTC 31 - Driver Loop Energy Reserve Feed Open
- DTC 34 - Arming Sensor Ignition Feed Open
- DTC 35 - Discriminating Sensor Open Or Missing
- DTC 42 - Loop Energy Reserve Voltage Low
- DTC 43 - Driver Source Feed Low
- DTC 51 - Frontal Crash Detected
- DTC 52 - Data Area Full
- DTC 53 - DERM Driver Initiator Circuits High Resistance
- DTC 55 - DERM Incompatibility
- DTC 61 - Sir Indicator Circuit Failure
- DTC 62 - Redundant Sir Indicator Circuit Failure
- DTC 71 &/Or 75 - Internal DERM Fault
- DTC 83 - Driver Reserve Diode Shorted
- Wire Repair
- Connector Identification
- Torque Specifications
- Wiring Diagrams
- Post-Collision Air Bag Safety Inspection
- Air Bag Restraint System
- Restraints Control Systems
- Seat Belts
- Air Bag, SRS
- Steering
- Manual Steering
- Power Steering
- Steering Column
- Suspension
- Front Suspension - Leaf Spring - C3500HD
- Rear Suspension
- Wheel Alignment
- Transmission
- Automatic Trans
- Automatic Transmission Diagnosis - 4L80-E
- Application
- Description
- Operation
- Trouble Shooting
- Electronic Self-Diagnostics
- Diagnostic Charts
- Diagnostic Charts - Gasoline
- DTC 14, Coolant Temperature Sensor Signal Voltage Low
- DTC 15, Coolant Temperature Sensor Signal Voltage High
- DTC 21, TPS Signal Voltage High
- DTC 22, TPS Signal Voltage Low
- DTC 24, Vehicle Speed Sensor Transmission Output Signal
- DTC 28, Trans. Range Pressure Switch
- DTCS 37/38, TCC Brake Switch On/Off
- DTC 39, TCC Stuck Off
- DTC 52/53, System Voltage High
- DTC 58, Trans. Fluid Temp. High
- DTC 59, Trans. Fluid Temp. Low
- DTC 68, Transmission Component Slipping
- DTC 69, Torque Converter Clutch Stuck On
- DTC 72, VSS Circuit Loss Transmission Output Signal
- DTC 74, Trans. Input Speed Error
- DTC 79, Trans. Fluid Temp. High
- DTC 85, Undefined Gear Ratio
- DTC 86, Low Gear Ratio Error
- DTC 87, High Gear Ratio Error
- Diagnostic Charts - Diesel
- On-Board Diagnostic (OBD) System Check - Models With Pcm
- On-Board Diagnostic (OBD) System Check - "G" & "P" Series With TCM
- Chart A-1, No Mil (Service Engine Soon Light) - Models W/Pcm
- Chart A-1, No Mil (Service Engine Soon Light) - "G" & "P" Series With TCM
- Chart A-2, No Scan Data, Mil (Service Engine Soon) On At All Times Or Will Not Flash Mil - Models With Pcm
- Chart A-2, No Data Link Connector (DLC) Data, Will Not Display DTC 12 Or Mil On Steady - "G" & "P" Series With TCM
- Chart A-3, Engine Cranks But Will Not Run
- DTC 14, Engine Coolant Temperature (ECT) Sensor Circuit Low (High Temperature Indicated)
- DTC 15, Engine Coolant Temperature (ECT) Sensor Circuit High (Low Temperature Indicated)
- DTC 24, Vehicle Speed Sensor Circuit Low (Trans Output Speed Signal)
- DTC 28, Trans. Range Pressure Switch Circuit Fault
- DTC 39, TCC Stuck Off
- DTC 58, Trans. Fluid Temp. Sensor Circuit Low (High Temperature Indicated)
- DTC 59, Trans. Fluid Temp. Sensor Circuit High (Low Temperature Indicated)
- DTC 68, Transmission Component Slipping
- DTC 69, Torque Converter Clutch Stuck On
- DTC 72, Vehicle Speed Sensor Circuit Loss (Transmission Output Signal)
- DTC 74, Trans. Input Speed Error
- DTC 79, Trans. Fluid Temp. High
- DTC 81, 2-3 Shift Solenoid Circuit Fault
- DTC 82, 1-2 Shift Solenoid Circuit Fault
- DTC 83, TCC PWM Solenoid Circuit Fault
- DTC 85, Undefined Gear Ratio
- DTC 86, Low Gear Ratio Error
- DTC 87, High Gear Ratio Error
- Component Tests
- Technical Service Bulletins (TSB)
- Wiring Diagrams
- Automatic Transmission Overhaul - 4L80-E
- Application
- Identification
- Description
- Lubrication
- On-Vehicle Service
- Adjustments
- Trouble Shooting
- Notes
- Quick Check
- Symptom Diagnosis
- Notes
- Fluid Flowing Out Of Vent Or Foaming
- Transmission Overheats
- Reduced Internal Lubrication
- High Or Low Line Pressure
- Inoperative In Drive
- Vehicle Moves Forward In "N"
- Engine Stall
- No Torque In Reverse & 3rd
- Locked In Park
- Vehicle Moves In Park
- Slips In Reverse
- No Reverse
- Slips In "D"
- No 1st Gear In "D4"
- No 1st Gear In "D2" Or "D3"
- No 1st Gear In "D1"
- No 1-2 Shift In "D4" (1st Gear Only)
- 1st & 2nd Gear Only
- 1st & 4th Gear Only (Manual 2nd & 3rd Only)
- Late 1-2 Shift
- No Engine Braking In "D1"
- No 2nd Gear
- 2nd Gear Only
- No Torque In 2nd
- Starts In 2nd Gear
- No 2nd Gear Braking In "D2"
- No Engine Braking In "D2"
- No Overrun Braking In "D2"
- No 1st Gear In "D3"
- No 2nd Gear In "D3"
- No 3rd Gear In "D3"
- Starts In 3rd Gear
- No Engine Braking In "D3"
- 2nd & 3rd Gear Only
- No 4th Gear
- Starts In 4th Gear
- Incorrect Shift Points
- Harsh Shifts
- Harsh Shifts ("D" To "R")
- Harsh Shifts (3-4 Shift)
- Harsh Shifts (4-3 Shift)
- Harsh Shifts ("D4" To "D3", "D2" Or "D1")
- Soft Shifts
- Soft Shift (Into "R")
- Soft Shift (R To "D")
- Soft Shift (2-1)
- Soft Shift (2-3)
- Soft Shift (3-2)
- Soft Shift ("D3" To "D2")
- No "D2" To "D1" Shift
- No "D3" To "D2" Shift
- No Converter Clutch Apply
- TCC Does Not Release
- TCC Apply Soft Or Slipping
- Incorrect TCC Apply Or Release
- Clutch & Band Application
- Electronic Self-Diagnostics & Electronic Testing
- Testing
- Removal & Installation
- Transmission Disassembly
- Component Disassembly & Reassembly
- Transmission Reassembly
- Transmission Specifications
- Torque Specifications
- Wiring Diagrams
- Removal & Installation - A/T
- Servicing - A/T
- Automatic Transmission Diagnosis - 4L80-E
- Clutches
- Automatic Transmission Hydraulic Diagrams - 4L80-E.
- Manual Trans
- Manual Transmission Overhaul - New Venture 4500 5-Speed
- Removal & Installation - M/T
- Servicing - M/T
- Automatic Trans
- External Pages