Engine Controls - System/Component Tests - V6

• Introduction
  • Notes
  • A & C Chart References
  • Body Code Identification
• Air Induction Systems
  • Supercharger (3.8L VIN 1)(C-18)
    • Boost Control Solenoid (3.8L VIN 1)
• Computerized Engine Controls
  • Control Unit
    • Ground Circuits
    • Power Circuits
• Engine Sensors & Switches
  • Notes
  • A/C On (A/C Request) Switch Test
  • A/C Pressure Sensor
  • A/C Pressure Switch
  • Brake Switch
  • Camshaft Position Sensor (C(3)I System)
  • Coolant Temperature Sensor (Cts)
  • Crankshaft Sensor
  • Dual Crank (Combination) Sensor (C(3)I)
  • Intake Air Temperature (IAT) Sensor
  • Knock Sensor (KS)
  • Manifold Absolute Pressure (Map) Sensor (C-1)
  • Mass Airflow (MAF) Sensor (3.3L & 3.8L)
  • Manifold Air Temperature (Mat) Sensor
  • Oxygen Sensor
  • Park/Neutral Position (PNP) Switch (C-1)
  • Power Steering Pressure (PSP) Switch (C-1)
  • Throttle Position (TP) Sensor
  • Vehicle Speed Sensor (Pm Generator Type)
  • Vehicle Speed Sensor (Led Type)
• Motors, Relays & Solenoids
  • Secondary Air Electric Air Pump (3.4L VIN S)
  • Secondary Air Electric Air Pump (3.4L VIN X M/T)
  • Idle Air Control (IAC) Motor & Idle Speed Control (ISC) Motor
  • A/C Clutch Relay
  • Electric Air Pump Relay
  • Fuel Pump Relay
  • Air By-Pass Valve Solenoid
  • Canister Purge Solenoid
  • EGR Control Solenoid
• Fuel System
  • Fuel Delivery
    • Notes
    • Fuel Pressure Regulator (PFI)
    • Fuel Pressure Regulator (TBI)
    • Fuel Pump Relay (A-5)
    • Fuel Pump Relay By-Pass Procedure
    • Oil Pressure Switch Fuel Pump Back-Up
  • Fuel Control
    • Fuel Injector(s)
    • PFI Injector Balance Test (C-2)
    • Oxygen Sensor
• Idle Control System (C-2)
  • Idle Air Control (IAC) Motor
• Ignition System
  • Notes
  • Timing Control Systems
    • Ignition Control (IC) Timing Advance System
    • Knock Sensor (KS) System Without KS Controller (C-5)
    • Knock Sensor (KS) System With KS Controller (C-5)
• Emission Systems & Sub-Systems
  • Air Injection (C-6)
    • AIR Pump (Belt-Driven)
    • Check Valve
    • Electric AIR Control By-Pass Valve (3.1L & 3.4L VIN X)
    • Electric AIR Pump Relay (3.4L VIN S)
  • Exhaust Gas RECIRCULATION (C-7)
    • Notes
    • System Test (Vacuum Operated)
    • EGR Control Solenoid (Normally Closed)
    • EGR Control Solenoid (Normally Open)
    • Digital EGR Valve (3.1L, 3.4L & 3.8L)
    • Positive Backpressure EGR Valve
    • Negative Backpressure EGR Valve
  • Fuel Evaporation Control (C-3)
    • Notes
    • Canister Purge Solenoid (Normally Closed)
    • Canister Purge Solenoid (Normally Open)
    • Fuel Tank Pressure Control Valve
  • Positive Crankcase Ventilation (PCV)
    • Required Service
    • Checking PCV Valve Function
  • Heated Intake Air System
    • Damper Door - Wax Pellet Actuator Check (TBI)
• Miscellaneous Controls
  • Notes
  • Hot Light Or Coolant Temperature Light
  • Transmission (C-8)
    • Converter Clutch Solenoid
    • Converter Lock-Up Signal At Transmission
    • Converter Lock-Up Signal From ECM
    • Shift Light (Manual Transmission)
  • A/C Clutch (C-10) & Electric Cooling Fan (C-12)
    • Notes
    • A/C Clutch Relay
    • Cooling Fan System & Quad-Driver Check
    • Cooling Fan Relay
    • Cooling Fan Motor
• Diagnostic Charts
  • Notes
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.1L "J" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.1L "J" Body)
  • Chart C-10 - A/C Clutch Control CKT (1 Of 2)(3.1L "J" Body)
  • Chart C-10 - A/C Clutch Control CKT (2 Of 2)(3.1L "J" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.1L "L" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.1L "L" Body)
  • Chart C-10 - A/C Clutch Control CKT (1 Of 2)(3.1L "L" Body)
  • Chart C-10 - A/C Clutch Control CKT (2 Of 2)(3.1L "L" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.1L "W" Body - CALIF.)
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.1L "W" Body - CALIF.)
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.1L "W" Body - Fed.)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.1L "W" Body - Fed.)
  • Chart C-10 - A/C Clutch Control CKT (1 Of 2)(3.1L "W" Body - Federal)
    • Notes
    • Diagnostic Aids
  • Chart C-10 - A/C Clutch Control CKT (2 Of 2)(3.1L "W" Body - Federal)
    • Notes
    • Diagnostic Aids
  • Chart C-12A - Cooling Fan CKT (1 Of 3)(3.3L "A" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12B - Cooling Fan Inoperative (2 Of 3)(3.3L "A" Body)
  • Chart C-12C - Cooling Fan On At All Times (3 Of 3)(3.3L "A" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-10 - A/C Clutch Control CKT (1 Of 2)(3.3L "A" Body)
  • Chart C-10 - A/C Clutch Control CKT (2 Of 2)(3.3L "A" Body)
  • Chart C-12 - Cooling Fan CKT (1 Of 3)(3.3L "N" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12A - Cooling Fan Inoperative (2 Of 3)(3.3L "N" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12B - Cooling Fan On At All Times (3 Of 3)(3.3L "N" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-10 - A/C Clutch Control CKT (3.3L "N" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.4L "F" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.4L "F" Body)
  • Chart C-10 - A/C Clutch Control CKT (3.4L "F" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (1 Of 2)(3.4L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12 - Cooling Fan CKT (2 Of 2)(3.4L "W" Body)
  • Chart C-10 - A/C Clutch Control CKT (1 Of 2)(3.4L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-10 - A/C Clutch Control CKT (2 Of 2)(3.4L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12A - Cooling Fan CKT (1 Of 4)(3.8L "C" & "H" Bodies)
    • Notes
    • Diagnostic Aids
  • Chart C-12B - Cooling Fan On At All Times (2 Of 4)(3.8L "C" & "H" Bodies)
  • Chart C-12C - Cooling Fan No Low Speed Fan (3 Of 4)(3.8L "C" & "H" Bodies)
  • Chart C-12D - Cooling Fan No High Speed Fan (4 Of 4)(3.8L "C" & "H" Bodies)
  • Chart C-12A - Cooling Fan Circuit Diagnosis (1 Of 5)(3.8L "E" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12B - Cooling Fan No Low Speed (2 Of 5)(3.8L "E" Body)
  • Chart C-12C-A - Cooling Fan No High Speed Rear Fan (3 Of 5) (3.8L "E" Body)
  • Chart C-12C-B - Cooling Fan No High Speed Front Fan (4 Of 5) (3.8L "E" Body)
  • Chart C-12D - Cooling Fan On At All Times (5 Of 5)(3.8L "E" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12A - Cooling Fan CKT (1 Of 6)(3.8L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12B - Cooling Fan No Low Speed (2 Of 6)(3.8L "W" Body)
  • Chart C-12C-A - Cooling Fan No High Speed Right Side Cooling Fan (3 Of 6)(3.8L "W" Body)
  • Chart C-12C-B - Cooling Fan No High Speed Left Side Cooling Fan (4 Of 6) (3.8L "W" Body)
  • Chart C-12D-A - Cooling Fan Low Speed Fan(S) On At All Times (5 Of 6) (3.8L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-12D-B - Cooling Fan High Speed Fan(S) On At All Times (6 Of 6) (3.8L "W" Body)
    • Notes
    • Diagnostic Aids
  • Chart C-10 - A/C Clutch Control CKT (3.8L "W" Body)
  • Chart C-10 - A/C Clutch Control CKT (4.3L "B" Body)
• Component Locations