Engine Controls - Self-Diagnostics

• Diagnostic Tests
  • Notes
  • Diagnostic Trouble Code Identification
  • ECM Harness Connector
  • DTC P0100: Mass Airflow (MAF) Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • DTC Confirmation Test "C"
    • DTC Confirmation Test "D" (Overall Function Check)
    • Procedure
  • DTC P0105: Absolute Pressure (AP) Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • DTC Confirmation Test "C" (Overall Function Check)
    • Procedure "A"
    • Procedure "B"
  • DTC P0110: Intake Air Temperature (IAT) Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • Procedure
  • DTC P0115 Or P0125: Engine Coolant Temperature (ECT) Sensor
    • Notes
    • DTC Confirmation Test (DTC P0115)
    • DTC Confirmation Test (DTC P0125)
    • Procedure
  • DTC P0120: Throttle Position (TP) Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • DTC Confirmation Test "C"
    • Procedure
  • DTC P0130: Right Bank, Or DTC P0150: Left Bank Front Heated Oxygen Sensor
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0131 Or P0132: Right Bank, Or DTC P0151 Or P0152: Left Bank Front Heated Oxygen Sensor
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0133: Right Bank, Or DTC P0153: Left Bank Front Heated Oxygen Sensor
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0134: Right Bank, Or DTC P0154: Left Bank Front Heated Oxygen Sensor
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0135: Right Bank, Or DTC P0155: Left Bank Front Ho2S Heater
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0137, P0138, P0139 Or P0140: Right Bank, Or DTC P0157, P0158, P0159, Or P0160: Left Bank Rear Heated Oxygen Sensor
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0141: Right Bank, Or DTC P0161: Left Bank Rear Ho2S Heater
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0171, P0172, P0174 Or P0175: Fuel Injection System Function
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0180: Fuel Tank Temperature (FTT) Sensor
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0300-P0306: Cylinder Or Multiple Cylinder Misfire
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0325: Knock Sensor
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0335 Or P1336: Crankshaft Position (CKP) Sensor
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0340: Camshaft Position (CMP) Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Tests "B" & "C"
    • Procedure
  • DTC P0400: EGR Function
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0402: EGR Control BACKPRESSURE Transducer (EGRC-BPT)
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0420: Right Bank, Or DTC P0430: Left Bank 3-Way Catalyst Function
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0440 Or P1440: EVAP Control System
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0443: EVAP Canister Purge Volume Control Valve (EVAP-CPVCV)
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0446: EVAP Canister Vent Control Valve (EVAP-CVCV)
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0450: EVAP Control System Pressure Sensor (EVAP-CSPS)
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P0500: Vehicle Speed Sensor (VSS)
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0505: Idle Air Control (IAC) Valve
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • Procedure
  • DTC P0510: Closed Throttle Position (TP) Switch
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0600: A/T Control
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P0605: ECM
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1105: Manifold Absolute Pressure (Map)/Barometric Pressure (BARO) Solenoid
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B"
    • Procedure "A"
    • Procedure "B"
  • DTC P1148: Right Bank, Or DTC P1168: Left Bank Closed Loop Control
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P1320: Ignition Signal
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1336: Crankshaft Position (CKP) Sensor
  • DTC P1400: EGR Control (EGRC) Solenoid
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1401: EGR Temperature Sensor
    • Notes
    • DTC Confirmation Test "A"
    • DTC Confirmation Test "B" (Overall Function Check)
    • Procedure
  • DTC P1402: EGR Function
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1440: EVAP Control System
  • DTC P1444: EVAP Canister Purge Volume Control Valve (EVAP-CPVCV)
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1446: EVAP Canister Vent Control Valve (EVAP-CVCV)
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1447: EVAP Control System Purge Flow Monitoring
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P1448: EVAP Canister Vent Control Valve (EVAP-CVCV)
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P1490: EVAP Vacuum Cut Valve By-Pass Valve
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1491: EVAP Vacuum Cut Valve By-Pass Valve
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure
  • DTC P1605: A/T Diagnostic Communication Line
    • Notes
    • DTC Confirmation Test
    • Procedure
  • DTC P1706: Park/Neutral Position (PNP) Switch
    • Notes
    • DTC Confirmation Test (Overall Function Check)
    • Procedure (A/T Models)
    • Procedure (M/T Models)