Engine Control Self-Diagnostics

• Description & Operation
  • General Description
  • Functional Operation
    • Fuel Control
    • On-Board Diagnostics
  • Other Controls
    • Charging System
    • Fuel Vapor Recovery System (Duty Cycle Purge Control)
    • Leak Detection Pump System
• Introduction
  • Pcm Operating Modes
  • Ignition Switch On (Engine Off) Mode
  • Non-Monitored Circuits
  • Starts Since Set Counter
  • Handling No Trouble Code Problems
  • No Start Information
    • Notes
    • ABS & AIR BAG Systems
    • SKIM Theft Alarm
  • Using The DRBIII(R)
  • Warnings & Cautions
    • Technician Safety Information
    • Vehicle Preparation For Testing
    • Servicing Sub-Assemblies
    • Road Test Warnings
    • Vehicle Damage Cautions
• Trouble Shooting
  • 6-Step Trouble Shooting Procedure
• Symptom Testing
  • Checking Charging System Operation With No DTC'S Present
  • Bus (+) & Bus (-) Open
  • Bus Bias Too High Or Too Low
  • Bus Failure Message - Bus (+) & Bus (-) Shorted Together
  • Bus Failure Message - No Termination
  • Bus Failure Message - Short To 5 Volts
  • Bus Failure Message - Short To Battery
  • Bus Failure Message - Short To Ground
  • DRBIII(R) Blank Screen
  • No Bus Bias
  • No Response From Airbag Control Module
  • No Response From Electronic Entry Module
  • No Response From Pcm (Sci Only)
  • No Response From Powertrain Control Module (CCD)
  • Not Receiving Bus Messages Correctly
  • Checking Evaporative Emission Operation With No DTC'S
  • Checking Fuel Delivery
  • Checking Map Sensor Operation With No DTC'S
  • Checking Minimum Airflow
  • Checking Radiator Fan Operation With No DTC'S
  • Checking Engine Coolant Temperature Sensor
  • Checking Intake Air Temperature
  • Checking Pcm Power & Grounds
  • Checking Throttle Position Sensor Operation With No DTC'S
  • Engine Cranks Does Not Start
  • No Crank Condition
  • No Response From Pcm With A No Start Condition
  • Start & Stall Condition
  • Cannot Shift Into 2ND & 3RD Gears
  • Cannot Shift Into Reverse
• Diagnostic Trouble Codes
  • Diagnostic Test Procedures
  • Hard Codes
  • Intermittent Codes
• Diagnostic Trouble Code Definitions
  • DTC Definitions
• Diagnostic Tests
  • Notes
  • DTC P0031; P0032; P0037; P0038; P0051; P0052: O2 Sensor Heater Circuit Low Or High
  • DTC P0071: Ambient Temp Sensor Performance
  • DTC P0107: Map Sensor Voltage Too Low
  • DTC P0108: Map Sensor Voltage Too High
  • DTC P0111: Intake Air Temp Performance
  • DTC P0112: Intake Air Temp Sensor Voltage Low
  • DTC P0113: Intake Air Temp Sensor Voltage High
  • DTC P0117: ECT Sensor Voltage Too Low
  • DTC P0118: ECT Sensor Voltage Too High
  • DTC P0121: TPS Voltage Does Not Agree With Map
  • DTC P0122: Throttle Position Sensor Voltage Low
  • DTC P0123: Throttle Position Sensor Voltage High
  • DTC P0125: Closed Loop Temp Not Reached
  • DTC P0131; P0137; P0151; P0157: O2 Sensor Shorted To Ground
  • DTC P0132; P0138; P0152; P0158: O2 Sensor Shorted To Voltage
  • DTC P0133; P0139; P0153; P0159: O2 Sensor Slow Response
  • DTC P0135; P0141; P0155; P0161: O2 Sensor Heater Failure
  • DTC P0136: O2 Sensor Heater Circuit Malfunction
  • DTC P0171; P0174: Fuel System Lean
  • DTC P0172; P0175: Fuel System Rich
  • DTC P0201-P210: Injector #1-10 Control Circuit
  • DTC P0300-P0310: Multiple Cylinder Misfire
  • DTC P0320: No Crank Reference Signal At Pcm
  • DTC P0340: No Cam Signal At Pcm
  • DTC P0351: Ignition Coil #1 Primary Circuit
  • DTC P0352: Ignition Coil #2 Primary Circuit
  • DTC P0353: Ignition Coil #3 Primary Circuit
  • DTC P0354: Ignition Coil #4 Primary Circuit
  • DTC P0355: Ignition Coil #5 Primary Circuit
  • DTC P0356: Ignition Coil #6 Primary Circuit
  • DTC P0357: Ignition Coil #7 Primary Circuit
  • DTC P0358: Ignition Coil #8 Primary Circuit
  • DTC P0420: 1/1 Catalytic Converter Efficiency
  • DTC P0432: 2/1 Catalytic Converter Efficiency
  • DTC P0441: EVAP Purge Flow Monitor
  • DTC P0442; P0455; P0456: EVAP Leak Monitor Leak Detected
  • DTC P0443: EVAP Purge Solenoid Circuit
  • DTC P0460-P0461: Fuel Level Unit No Change Over Time Or Miles
  • DTC P0462: Fuel Level Sending Unit Volts Too Low
  • DTC P0463: Fuel Level Sending Unit Volts Too High
  • DTC P0500: No Vehicle Speed Sensor Signal
  • DTC P0505: Idle Air Control Motor Circuits
  • DTC P0522: Oil Pressure Sensor Volts Low
  • DTC P0523: Oil Pressure Sensor Volts High
  • DTC P0551: Power Steering Switch Failure
  • DTC P0601: Pcm Internal Controller Failure
  • DTC P0622: Generator Field Not Switching Properly
  • DTC P0801: Reverse Gear Lockout Circuit Open Or Shorted
  • DTC P1195-P1197: O2 Sensor Slow During Catalyst Monitor
  • DTC P1281: Engine Is Cold Too Long
  • DTC 1282: Fuel Pump/System Relay Control Circuit
  • DTC P1294: Target Idle Not Reached
  • DTC P1296: No 5 Volts To Map Sensor
  • DTC P1297: No Change In Map From Start To Run
  • DTC P1388: Auto Shutdown Relay Control Circuit
  • DTC P1389: No ASD Relay Output Voltage At Pcm
  • DTC P1391: Intermittent Loss Of CMP Or CKP
  • DTC P1398: Misfire Adaptive Numerator At Limit
  • DTC P1486: EVAP Leak Monitor Pinched Hose Found
  • DTC P1489: High Speed Fan Control Relay Circuit
  • DTC P1490: Low Speed Fan Control Relay Circuit
  • DTC P1491: Rad Fan Control Relay Circuit
  • DTC P1492: Ambient/Batt Temp Sen Volts Too High
  • DTC P1493: Ambient/Batt Temp Sen Volts Too Low
  • DTC P1494: Leak Detection Pump SW Or Mechanical Fault
  • DTC P1495: Leak Detection Pump Solenoid Circuit
  • DTC P1594: Charging System Voltage Too High
  • DTC P1682: Charging System Voltage Too Low
  • DTC P1696: Pcm Failure EEPROM Write Denied
  • DTC P1719: Skip Shift Solenoid Circuit Open Or Shorted
• Verification Tests
  • Airbag Test
  • Body Test
  • Fuel System/Misfire Monitor Test
  • Powertrain Test VER-1
  • Powertrain Test VER-2
  • Powertrain Test VER-3
  • Powertrain Test VER-5
  • Powertrain Test VER-6
• Connector PINOUTS & Terminal Identification
• Wiring Diagrams
  • 8.0L JTEC System