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Engine Performance System Self-Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Test Equipment Drive Cycles Summary Diagnostic Trouble Code Definitions Connector Identification Diagnostic Circuit Check Diagnostic Tests DTC P0097: Intake Air Temperature Sensor 2 Circuit, Low Voltage DTC P0098: Intake Air Temperature Sensor 2 Circuit, High Voltage DTC P0107: Manifold Absolute Pressure Sensor Circuit, Low Voltage Input DTC P0108: Manifold Absolute Pressure Sensor Circuit, High Voltage Input DTC P0112: Intake Air Temperature Sensor Circuit, Low Voltage Input DTC P0113: Intake Air Temperature Sensor Circuit, High Voltage Input DTC P0116: Engine Coolant Temperature Sensor Circuit, Range/Performance Problem DTC P0117: Engine Coolant Temperature Sensor Circuit, Low Voltage DTC P0118: Engine Coolant Temperature Sensor Circuit, High Voltage Input DTC P0122: Throttle Position Sensor 1 Circuit, Low Voltage DTC P0123: Throttle Position Sensor Circuit, High Voltage DTC P0125: Engine Coolant Temperature Sensor, Slow Response DTC P0128: Cooling System Malfunction DTC P0133 Or DTC P0153 DTC P0134 Or DTC P0154 DTC P0135 Or DTC P0155 DTC P0137 Or DTC P0157 DTC P0138 Or DTC P0158 DTC P0139 Or DTC P0159 DTC P0141 Or DTC P0161 DTC P0171, DTC P0172, DTC P0174 Or DTC P0175 DTC P0201, DTC P0202, DTC P0203, DTC P0204, DTC P0205 Or DTC P0206 DTC P0222: Throttle Position Sensor 2 Circuit, Low Voltage DTC P0223: Throttle Position Sensor 2, Circuit, High Voltage DTC P0300: Random Misfire & With DTC P0301-DTC P0306 DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 Or DTC P0306 DTC P0325: Knock Sensor Circuit Malfunction DTC P0335 Or DTC P0385 DTC P0339 Or DTC P0389 DTC P0340: Camshaft Position Sensor No Signal DTC P0344: Camshaft Position Sensor Intermittent Interruption DTC P0401: EGR System Insufficient Flow Detected DTC P0403: EGR Control Circuit Malfunction DTC P0404: EGR Control Circuit Range/Performance Problem DTC P0406: EGR Valve Position Sensor Circuit, High Voltage DTC P0420 Or DTC P0430 DTC P0443: EVAP Canister Purge Valve Circuit Malfunction DTC P0451: Fuel Tank Pressure Sensor Circuit, Range/Performance Problem DTC P0452: Fuel Tank Pressure Sensor Circuit, Low Voltage DTC P0453: Fuel Tank Pressure Sensor Circuit, High Voltage DTC P0455: Evaporative Emission Control System, Very Large Leak Detected DTC P0456: Evaporative Emission Control System, Very Small Leak Detected DTC P0457: Evaporative Emission Control System Leak Detected, Fuel Fill Cap Loose/Off DTC P0461: Fuel Level Sensor Range/Performance DTC P0462: Fuel Level Sensor Circuit, Low Voltage DTC P0463: Fuel Level Sensor Circuit, High Voltage DTC P0496: EVAP Canister System High Purge Flow DTC P0497: EVAP System Low Purge Flow DTC P0498: EVAP Canister Vent Shut Valve Control Circuit, Low Voltage DTC P0499: EVAP Canister Vent Shut Valve Control Circuit, High Voltage DTC P0506: Idle Control System Rpm Lower Than Expected DTC P0507: Idle Control System Rpm Higher Than Expected DTC P0563: Pcm Power Source Circuit, Unexpected Voltage DTC P0603: Pcm Internal Control Module Keep Alive Memory Error DTC P0606: Pcm Processor Malfunction DTC P0627: PGM-FI Main Relay 2 Circuit Malfunction (Fuel Pump) DTC P0641 Or DTC P0651 DTC P0657: Air Fuel Ratio Sensor Relay Circuit Malfunction DTC P0685: Pcm Power Control Circuit Malfunction DTC P1077: Intake Manifold Runner Control Valve Stuck Short DTC P1078: Intake Manifold Runner Control Valve Stuck Long DTC P1128: Manifold Absolute Pressure Sensor Signal Lower Than Expected DTC P1129: Manifold Absolute Pressure Sensor Signal Higher Than Expected DTC P1297: Electrical Load Detector Circuit, Low Voltage DTC P1298: Electrical Load Detector Circuit, High Voltage DTC P1450: Two Way Valve Bypass Valve Control Circuit, Low Voltage DTC P1451: Two Way Valve Bypass Valve Control Circuit, High Voltage DTC P1454: Fuel Tank Pressure Sensor Range/Performance Problem DTC P1460: Fuel Level Sensor Power Supply Circuit DTC P1683: Throttle Valve Default Position Spring Performance Problem DTC P1684: Throttle Valve Return Spring Performance Problem DTC P2101: Throttle Actuator System Malfunction DTC P2108: Throttle Actuator Control Module Problem DTC P2118: Throttle Actuator Control Module Range/Performance Problem DTC P2122: Accelerator Pedal Position (App) Sensor 1 Circuit, Low Voltage DTC P2123: Accelerator Pedal Position (App) Sensor 1 Circuit, High Voltage DTC P2127: Accelerator Pedal Position (App) Sensor 2 Circuit, Low Voltage DTC P2128: Accelerator Pedal Position (App) Sensor 2 Circuit, High Voltage DTC P2135: Throttle Position Sensor 1 & 2, Incorrect Voltage Correlation DTC P2138: Accelerator Pedal Position (App) Sensor 1 & 2, Incorrect Voltage Correlation DTC P2176: Throttle Actuator Control System, Idle Position Not Learned DTC P2195 Or DTC P2197 DTC P2199: Intake Air Temperature Sensor 1 & 2 Correlation DTC P2227: Barometric Pressure Sensor, Range/Performance Problem DTC P2228 Or DTC P2229 DTC P2237 Or DTC P2240 DTC P2238 Or DTC P2241 DTC P2243 Or DTC P2247 DTC P2245 Or DTC P2249 DTC P2251 Or DTC P2254 DTC P2252 Or DTC P2255 DTC P2279: Intake Air System Leak DTC P2413: EGR System Malfunction DTC P2422: EVAP Canister Vent Shut Valve, Close Malfunction DTC P2552: Throttle Actuator Control Module Relay Malfunction DTC P2610: 24-Hour Timer Malfunction DTC P2627 Or DTC P2630 DTC P2628 Or DTC P2631 DTC P2A00 Or DTC P2A03 DTC P2646: VTEC Oil Pressure Switch Circuit, Low Voltage DTC P2647: VTEC Oil Pressure Switch Circuit, High Voltage DTC P2648: VTEC Solenoid Valve Circuit, Low Voltage DTC P2649: VTEC Solenoid Valve Circuit, High Voltage DTC U0107: Lost Communication With Throttle Actuator Control Module Fuel Tank Vapor Control Valve Test Evaporative Emission 2-Way Valve Test VTEC Rocker Arm Test