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Engine Controls - Self-Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Scan Tool Usage Programming Drive Cycles Summary Diagnostic Trouble Code Definitions Connector Identification Diagnostic Tests DTC P0011: Intake Valve Timing Control Performance (Bank 1) Or DTC P0021: Intake Valve Timing Control Performance (Bank 2) DTC P0031, DTC P0032, DTC P0051 Or DTC P0052 DTC P0037, DTC P0038, DTC P0057 Or DTC P0058 DTC P0101: Mass Airflow Sensor Circuit Range/Performance Problem DTC P0102: Mass Air Flow Sensor Circuit Low Input Or DTC P0103: Mass Air Flow Sensor Circuit High Input DTC P0112: Intake Air Temperature Sensor Circuit Low Input Or DTC P0113: Intake Air Temperature Sensor Circuit High Input DTC P0117: Engine Coolant Temperature Sensor Circuit Low Input Or DTC P0118: Engine Coolant Temperature Sensor Circuit High Input DTC P0122: Throttle Position Sensor No. 2 Circuit Low Input Or DTC P0123: Throttle Position Sensor No. 2 Circuit High Input DTC P0125: Insufficient Engine Coolant Temperature For Closed Loop Fuel Control DTC P0127: Intake Air Temperature Too High DTC P0128: Thermostat Function DTC P0132: Heated Oxygen Sensor 1 Circuit High Voltage (Bank 1) Or DTC P0152: Heated Oxygen Sensor 1 Circuit High Voltage (Bank 2) DTC P0133: Heated Oxygen Sensor 1 Circuit Slow Response (Bank 1) Or DTC P0153: Heated Oxygen Sensor 1 Circuit Slow Response (Bank 2) DTC P0134: Heated Oxygen Sensor 1 Circuit No Activity Detected (Bank 1) Or DTC: P0154: Heated Oxygen Sensor 1 Circuit No Activity Detected (Bank 2) DTC P0138: Heated Oxygen Sensor 2 Circuit High Voltage (Bank 1) Or DTC P0158: Heated Oxygen Sensor 2 Circuit High Voltage (Bank 2) DTC P0139: Heated Oxygen Sensor 2 Circuit Slow Response (Bank 1) Or DTC P0159: Heated Oxygen Sensor 2 Circuit Slow Response (Bank 2) DTC P0171: Fuel Injection System Too Lean (Bank 1) Or DTC P0174: Fuel Injection System Too Lean (Bank 2) DTC P0172: Fuel Injection System Too Rich (Bank 1) Or DTC P0175: Fuel Injection System Too Rich (Bank 2) DTC P0181: Fuel Tank Temperature Sensor Circuit Range/Performance DTC P0182: Fuel Tank Temperature Sensor Circuit Low Input Or DTC P0183: Fuel Tank Temperature Sensor Circuit High Input DTC P0222: Throttle Position Sensor 1 Circuit Low Input Or DTC P0223: Throttle Position Sensor 1 Circuit High Input DTC P0300, DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305, DTC P0306, DTC P0307 Or DTC P0308 DTC P0327, DTC P0328, DTC P0332 Or DTC P0333 DTC P0335: Crankshaft Position Sensor (Pos) Circuit DTC P0340: Camshaft Position Sensor (Phase) Circuit DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) Or DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) DTC P0441: EVAP Control System Incorrect Purge Flow DTC P0442: EVAP Control System Small Leak Detected (Negative Pressure) DTC P0444: EVAP Canister Purge Volume Control Solenoid Valve Circuit Open Or DTC P0445: EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted DTC P0447: EVAP Canister Vent Control Valve Circuit Open DTC P0451: EVAP Control System Pressure Sensor Performance DTC P0452: EVAP Control System Pressure Sensor Low Input DTC P0453: EVAP Control System Pressure Sensor High Input DTC P0455: EVAP Control System Gross Leak Detected DTC P0456: Evaporative Emission Control System Very Small Leak (Negative Pressure Check) DTC P0460: Fuel Level Sensor Circuit Noise DTC P0461: Fuel Level Sensor Circuit Range/Performance DTC P0462: Fuel Level Sensor Circuit Low Input Or DTC P0463: Fuel Level Sensor Circuit High Input DTC P0500: Vehicle Speed Sensor DTC P0506: Idle Speed Control System Rpm Lower Than Expected DTC P0507: Idle Speed Control System Rpm Higher Than Expected DTC P0550: Power Steering Pressure Sensor Circuit DTC P0605: Engine Control Module DTC P1065: ECM Power Supply Circuit DTC P1102: Mass Airflow Sensor Circuit Range/Performance Problem DTC P1111: Intake Valve Timing Control Solenoid Valve Circuit (Bank 1) Or DTC P1136: Intake Valve Timing Control Solenoid Valve Circuit (Bank 2) DTC P1121: Electric Throttle Control Actuator DTC P1122: Electric Throttle Control Function Performance Problem DTC P1124: Throttle Control Motor Relay Circuit Short Or P1126: Throttle Control Motor Relay Circuit Open DTC P1128: Throttle Control Motor Circuit Short DTC P1140: Intake Valve Timing Control Position Sensor Circuit (Bank 1) Or DTC P1145: Intake Valve Timing Control Position Sensor Circuit (Bank 2) DTC P1143: Heated Oxygen Sensor 1 Lean Shift Monitoring (Bank 1) Or DTC P1163: Heated Oxygen Sensor 1 Lean Shift Monitoring (Bank 2) DTC P1144: Heated Oxygen Sensor 1 Rich Shift Monitoring (Bank 1) Or DTC P1164: Heated Oxygen Sensor 1 Rich Shift Monitoring (Bank 2) DTC P1146: Heated Oxygen Sensor 2 Minimum Voltage Monitoring (Bank 1) Or DTC P1166: Heated Oxygen Sensor 2 Minimum Voltage Monitoring (Bank 2) DTC P1147: Heated Oxygen Sensor 2 Maximum Voltage Monitoring (Bank 1) Or DTC P1167: Heated Oxygen Sensor 2 Maximum Voltage Monitoring (Bank 2) DTC P1148: Closed Loop Control Function (Bank 1) Or DTC P1168: Closed Loop Control Function (Bank 2) DTC P1211: TCS Control Unit DTC P1212: TCS Communication Line DTC P1217: Engine Over Temperature (Overheat) DTC P1225: Closed Throttle Position Learning Performance Problem DTC P1226: Closed Throttle Position Learning Performance Problem DTC P1229: Sensor Power Supply Circuit Short DTC P1444: EVAP Canister Purge Volume Control Solenoid Valve DTC P1446: EVAP Canister Vent Control Valve Close DTC P1564: Intelligent Cruise Control (ICC) Steering Switch DTC P1564: Automatic Speed Control Device (ASCD) Steering Switch DTC P1568: ICC Function DTC P1572: Intelligent Cruise Control (ICC) Brake Switch DTC P1572: Automatic Speed Control Device (ASCD) Brake Switch DTC P1574: Intelligent Cruise Control (ICC) Vehicle Speed Sensor DTC P1574: Automatic Speed Control Device (ASCD) Vehicle Speed Sensor DTC P1706: Park/Neutral Position Switch DTC P1720: Vehicle Speed Sensor (A/T Output) DTC P1780: Shift Change Signal DTC P1805: Brake Switch DTC P2122, DTC P2123, DTC P2127, DTC P2128 Or DTC P2138 DTC P2135: Throttle Position Sensor Circuit Range/Performance Problem DTC U1000: Can Communication Line Or DTC U1001: Can Communication Line