Engine Controls - Self-Diagnostics

• Introduction
• Component Locations
  • Ambient Temperature Sensor Location
  • Brake Switch Location
  • CKP Sensor Location
  • CMP Sensor & ECT Sensor Locations (2.7L)
  • CMP Sensor & ECT Sensor Locations (3.5L)
  • Data Link Connector Location
  • EGR Tube, Throttle Body, TP Sensor & PCV Valve Locations (2.7L)
  • EGR Valve Location (2.7L)
  • EVAP Purge Solenoid Location
  • Fuel Injectors & Ignition Coils Locations
  • Fuel Level Sensor Location
  • Fuel System Components Locations At Fuel Tank
  • IAC Motor, Throttle Body & TP Sensor Locations (3.5L)
  • IAT Sensor Location (2.7L)
  • IAT Sensor Location (3.5L)
  • Ignition Coil Capacitor Location
  • Knock Sensor Location (2.7L)
  • Knock Sensor Location (3.5L)
  • Manifold Tuning Valve Solenoid & Short Runner Valve Solenoid Locations (3.5L)
  • Map Sensor Location (2.7L)
  • Map Sensor Location (3.5L)
  • Powertrain Control Module & Power Distribution Center Locations
  • Sentry Key Immobilizer Module Location
  • Speed Control SWITCHE Locations
  • O2 Sensor Locations
• Self-Diagnostic System
  • Notes
  • On-Board Diagnostics
    • Notes
    • DTC Priority & DTC Self-Erasure
    • Monitored Circuits
    • Non-Monitored Circuits
    • Trip Indicator
    • Similar Conditions Window
    • Hard Failures
    • Intermittent Failures
  • Service Precautions
  • Diagnostic Procedure
  • Visual Inspection
  • Retrieving Diagnostic Trouble Codes
    • Notes
    • Using Scan Tool
    • Using Odometer
  • Clearing Diagnostic Trouble Codes
    • Using Scan Tool
    • Self-Erasure
  • Powertrain Control Module Location
• Fuel System Pressure Release
• Programming
  • Powertrain Control Module
    • Notes
    • Programming Powertrain Control Module
  • Sentry Key Immobilizer Module
    • Programming SKIM
    • Programming Ignition Keys To SKIM
• Summary
• Diagnostic Trouble Code Definitions
• Connector Identification
  • Notes
  • A/C Compressor Clutch Harness Connector End View
  • Ambient Temperature Sensor Harness Connector End View
  • BCM Harness Connector End View
  • BRAKELIGHT Switch Harness Connector End View
  • Brake Transmission Shift Interlock Solenoid Harness Connector End View
  • CKP Sensor Harness Connector End View
  • CMP Sensor Harness Connector End View
  • Coil On Plug Harness Connector End View
  • Data Link Connector End View
  • EGR Solenoid Harness Connector End View
  • ECT Sensor Harness Connector End View
  • EVAP Purge Solenoid Harness Connector End View
  • Fuel Injector Harness Connector End View
  • Fuel Pump Module Harness Connector End View
  • Generator Harness Connector End View
  • Idle Air Control Motor Harness Connector End View
  • IAT Sensor Harness Connector End View
  • Instrument Cluster Harness Connector End View
  • Junction Block Components & Circuits
  • Knock Sensor Harness Connector End View
  • Leak Detection Pump Harness Connector End View
  • Manifold Tuning Valve Connector End View (3.5L)
  • Map Sensor Harness Connector End View
  • Power Distribution Center Component & Circuit Identification
  • Pcm Harness Connector End View
  • Radiator Fan Harness Connector End View
  • Radiator Fan Motor Harness Connector End View (Except 2.7L Base)
  • Radiator Fan Relay Harness Connector End View (At Fan; Except 2.7L Base)
  • Right Speed Control Switch Harness Connector End View
  • Sentry Key Immobilizer Module Harness Connector End View
  • Short Runner Valve Solenoid Connector End View (3.5L)
  • Speed Control Servo Harness Connector End View
  • TP Sensor Harness Connector End View (2.7L)
  • TP Sensor Harness Connector End View (3.5L)
  • O2 Sensor Harness Connector End View
• Diagnostic Tests
  • Notes
  • DTC P0030: 1/1 O2 Sensor Heater Circuit, DTC P0036: 1/2 O2 Sensor Heater Circuit, DTC P0050: 2/1 O2 Sensor Heater Or DTC P0056: 2/2 O2 Sensor Heater Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0068: Manifold Pressure/Throttle Position Correlation - High Flow/Vacuum Leak Detected
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0070: Ambient Temp Sensor Stuck Or DTC P0071: Ambient Temp Sensor Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0072: Ambient Temp Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0073: Ambient Temp Sensor High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0106: Map Sensor Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0107: Map Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0108: Map Sensor High
    • Notes
    • Monitor & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0110: Intake Air Temperature Sensor Stuck Or DTC P0111: Intake Air Temperature Sensor Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0112: Intake Air Temperature Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0113: Intake Air Temperature Sensor High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0116: Engine Coolant Temperature Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0117: Engine Coolant Temperature Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0118: Engine Coolant Temperature Sensor High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0121: Throttle Position Sensor #1 Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0122: Throttle Position Sensor #1 Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0123: Throttle Position Sensor #1 High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0125: Insufficient Coolant Temp For Closed-Loop Fuel Control
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0128: Thermostat Rationality
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0129: Barometric Pressure Out-Of-Range Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0131: O2 Sensor 1/1 Voltage Low, DTC P0137: O2 Sensor 1/2 Voltage Low, DTC P0151: O2 Sensor 2/1 Voltage Low Or DTC P0157: O2 Sensor 2/2 Voltage Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0132: O2 Sensor 1/1 Voltage High, DTC P0138: O2 Sensor 1/2 Voltage High, DTC P0152: O2 Sensor 2/1 Voltage High Or DTC P0158: O2 Sensor 2/2 Voltage High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0133: O2 Sensor 1/1 Slow Response, DTC P0139: O2 Sensor 1/2 Slow Response, DTC P0153: O2 Sensor 2/1 Slow Response Or DTC P0159: O2 Sensor 2/2 Slow Response
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0135: O2 Sensor 1/1 Heater Performance, DTC P0141: O2 Sensor 1/2 Heater Performance, DTC P0155: O2 Sensor 2/1 Heater Performance Or DTC P0161: O2 Sensor 2/2 Heater Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0171: Fuel System 1/1 Lean Or DTC P0174: Fuel System 2/1 Lean
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0172: Fuel System 1/1 Rich Or DTC P0175: Fuel System 2/1 Rich
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0201: Fuel Injector #1, DTC P0202: Fuel Injector #2, DTC P0203: Fuel Injector #3, DTC P0204: Fuel Injector #4, DTC P0205: Fuel Injector #5 Or DTC P0206: Fuel Injector #6
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0300: Multiple Cylinder Misfire, DTC P0301: Cylinder #1 Misfire, DTC P0302: Cylinder #2 Misfire, DTC P0303: Cylinder #3 Misfire, DTC P0304: Cylinder #4 Misfire, DTC P0305: Cylinder #5 Misfire Or DTC P0306: Cylinder #6 Misfire
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0315: No Crank Sensor Learned
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0325: Knock Sensor #1 Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0335: Crankshaft Position Sensor Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0339: Crankshaft Position Sensor Intermittent
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0340: Camshaft Position Sensor Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0344: Camshaft Position Sensor Intermittent
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0351: Ignition Coil #1 Circuit, DTC P0352: Ignition Coil #2 Circuit, DTC P0353: Ignition Coil #3 Circuit, DTC P0354: Ignition Coil #4 Circuit, DTC P0355: Ignition Coil #5 Circuit Or DTC P0356: Ignition Coil #6 Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0401: EGR System Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0403: EGR Control Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0404: EGR Position Sensor Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0405: EGR Position Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0406: EGR Position Sensor High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0420: Catalytic 1/1 Efficiency Or DTC P0432: Catalytic 2/1 Efficiency
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0440: General EVAP System Failure
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0441: EVAP Purge System Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0442: EVAP System Medium Leak Or DTC P0455: EVAP System Large Leak
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0443: EVAP Purge Solenoid Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0452: NVLD Pressure Switch Sense Circuit Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0453: NVLD Pressure Switch Sense Circuit High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0456: EVAP System Small Leak
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0461: Fuel Level Sensor #1 Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0462: Fuel Level Sensor #1 Low Or DTC P0463: Fuel Level Sensor #1 High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0480: Low Speed Fan Control Relay Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0481: High Speed Fan Control Relay Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0498: NVLD Canister Vent Valve Solenoid Circuit Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0499: NVLD Canister Vent Valve Solenoid Circuit High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0501: Vehicle Speed Sensor #1 Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0508: IAC Valve Sense Circuit Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0509: IAC Valve Sense Circuit High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0513: Invalid Skim Key
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0519: Idle Speed Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0532: A/C Pressure Sensor Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0533: A/C Pressure Sensor High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0562: Battery Voltage Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0563: Battery Voltage High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0579: Speed Control Switch #1 Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0580: Speed Control Switch #1 Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0581: Speed Control Switch #1 High
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0582: Speed Control Vacuum Solenoid Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0586: Speed Control Vent Solenoid Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0594: Speed Control Servo Power Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0600: Serial Communication Link Or DTC P0601: Internal Memory Checksum Invalid
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0622: Generator Field Control Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0627: Fuel Pump Relay Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0630: VIN Not Programmed In Pcm
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0632: Odometer Not Programmed In Pcm
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0633: Skim Key Not Programmed In Pcm
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0645: A/C Clutch Relay Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0660: Manifold Tune Valve Solenoid Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0685: ASD Relay Control Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0688: ASD Relay Sense Circuit Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0700: Transmission Control System/Read Transmission DTCS On The DRBIII®
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0703: Brake Switch #2 Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P0850: Park/Neutral Switch Performance
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1602: Pcm Not Programmed
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1603: Pcm Internal Dual-Port Ram Communication, DTC P1604: Pcm Internal Dual-Port Ram Read/Write Integrity Failure Or DTC P1607: Pcm Internal Shutdown Timer Rationality
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1686: No Skim Bus Messages
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1687: No Cluster Bus Message
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1695: No Body Bus Messages
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1696: EEPROM Memory Write Denied/Invalid Or DTC P1697: EMR (Sri) Mileage Not Stored
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P1698: No Transmission Bus Message
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Test
  • DTC P2008: Short Runner Solenoid Circuit
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P2302: Ignition Coil #1 Secondary Circuit-Insufficient Ionization, DTC P2305: Ignition Coil #2 Circuit-Insufficient Ionization, DTC P2308: Ignition Coil #3 Circuit-Insufficient Ionization, DTC P2311: Ignition Coil #4 Circuit-Insufficient Ionization, DTC P2314: Ignition Coil #5 Circuit-Insufficient Ionization Or DTC P2317: Ignition Coil #6 Circuit-Insufficient Ionization
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
  • DTC P2503: Charging System Voltage Low
    • Notes
    • Monitored & Set Conditions
    • Possible Causes
    • Testing
• Verification Tests
  • Notes
  • Fuel System/Misfire Monitor Verification Test
  • Powertrain Verification Test VER-1
  • Powertrain Verification Test VER-2
  • Powertrain Verification Test VER-3
  • Powertrain Verification Test VER-4
  • Powertrain Verification Test VER-5
  • Powertrain Verification Test VER-6
  • Skis Verification Test
  • 42LE Transmission Verification Test VER-1