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Engine Controls - Self-Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Summary Diagnostic Tests Fault Code Diagnosis P0100: Mass Air Flow Circuit - No Signal P0101: Mass Air Flow Circuit. Performance Problems. P0102: Mass Air Flow Circuit. Low Input. P0103: Mass Air Flow Circuit - High Input P0106: Manifold Absolute Pressure Sensor Circuit - Performance Problem P0107: Manifold Absolute Pressure Sensor Circuit - Open / Short To Ground P0108: Manifold Absolute Pressure Sensor Circuit - Short To B+ P0112: Intake Air Temperature Sensor Circuit - Short To Ground P0113: Intake Air Temperature Sensor Circuit. Short To B+ / Open Circuit P0115: Engine Coolant Temperature Circuit. Performance Problem. P0116: Engine Coolant Temperature Circuit. Performance Problem. P0117: Engine Coolant Temperature Sensor Circuit. Short To Ground. P0118: Engine Coolant Temperature Sensor Circuit - Short To B+/Open Circuit P0119: Engine Coolant Temperature Circuit - Intermittent Open/Short P0125: Excessive Time To Enter Closed Loop Fuel Control P0131: O2S Circuit. Low Voltage - Sensor 1 P0132: O2S Circuit. High Voltage - Sensor 1 P0133: O2S Circuit - Slow Response, Sensor 1 P0134: O2S Circuit - No Activity Detected, Sensor 1 P0137: O2S Circuit - Low Voltage, Sensor 2 P0138: O2S Circuit - High Voltage, Sensor 2 P0140: O2S Circuit - No Activity Detected, Sensor 2 P0171: Long Term Fuel Trim Multiplicative - Max Value, Air/Fuel Too Lean P0172: Long Term Fuel Trim Multiplicative. Min Value, Air/Fuel Too Rich. P0300: Random Misfire Detected P0301: Cylinder 1 Misfire Detected P0302: Cylinder 2 Misfire Detected P0303: Cylinder 3 Misfire Detected P0304: Cylinder 4 Misfire Detected P0305: Cylinder 5 Misfire Detected P0306: Cylinder 6 Misfire Detected P0327: Knock Sensor Circuit. Low Input, Bank 1 P0332: Knock Sensor Circuit - Low Input, Bank 2. P0336: Crankshaft Position Sensor Circuit - Performance Problem P0337: Crankshaft Position Sensor - No Input P0340: Camshaft Position Sensor - Malfunction P0410: Secondary Air Injection System - Incorrect Airflow P0420: Three Way Catalytic Converter. Malfunction. P0441: EVAP Purge Valve - Malfunction P0442: EVAP - Small Leakage In System P0444: EVAP Purge Valve Circuit - Open/Short To Ground P0445: EVAP Purge Valve Circuit - Short To B+ P0452: EVAP Tank Pressure Sensor Circuit - Short To Ground P0453: EVAP Tank Pressure Sensor Circuit - Open / Short To B+ P0455: EVAP - Serious Leakage In System P0456: Tank Purging, Very Minor Leak In System P0501: Vehicle Speed - Input Signal Outside Limits P0502: Vehicle Speed - No Input Signal P0506: Idle Speed Control - Speed Too Low P0507: Idle Speed Control - Idling Speed Too High P0605: Internal Control Module - Malfunction P1105: Charge Air Absolute Pressure Sensor - Hose Leakage P1106: Charge Air Absolute Pressure Sensor Circuit - Performance Problem P1107: Charge Air Absolute Pressure Sensor Circuit - Short To Ground/Open P1108: Charge Air Absolute Pressure Sensor Circuit - Short To B+ P1110: Charge Air Bypass Valve - Performance Problems P1131: O2S - Switch Point - Lean, Sensor 1 P1132: O2S - Switch Point - Rich, Sensor 1 P1133: O2S Circuit - Low Voltage - Sensor 1 P1135: O2S Heater Circuit - Current Too Low - Sensor 1 P1136: O2S Heater Circuit - Current Too High - Sensor 1 P1137: O2S Circuit - Low Voltage - Sensor 2 P1141: O2S Heater Circuit - Current Too Low, Sensor 2 P1142: O2S Heater Circuit - Current Too High, Sensor 2 P1171: Short Term Fuel Trim - Max Value, Air/Fuel Too Lean P1172: Short Term Fuel Trim - Min Value, Air/Fuel Too Rich P1181: Long Term Fuel Trim Additive - Max Value, Air/Fuel Too Lean P1182: Long Term Fuel Trim Additive - Min Value, Air/Fuel Too Rich P1230: Throttle Position Sensor 1 And 2 Circuit - Sum Out Of Range P1240: Throttle Motor Circuit - Shorted P1251: Throttle Motor - Full PWM In Closing Direction P1252: Throttle Motor - Full PWM In Open Direction And No Motor Current P1253: Throttle Motor - Full PWM In Open Direction During Cranking P1260: Throttle Return Spring - Too Low Force P1261: Throttle Binding P1263: Throttle Moved Manually When Engine Was Running P1264: Throttle Open When Pedal Is Released P1300: Random Misfire Detected. Catalyst Damaging. P1301: Cylinder 1 Misfire Detected - Catalyst Damaging P1302: Cylinder 2 Misfire Detected - Catalyst Damaging P1303: Cylinder 3 Misfire Detected - Catalyst Damaging P1304: Cylinder 4 Misfire Detected - Catalyst Damaging P1305: Cylinder 5 Misfire Detected - Catalyst Damaging P1306: Cylinder 6 Misfire Detected - Catalyst Damaging P1310: Ignition Discharge Module - Not Powered, Bank 1 P1312: Combustion Detection CYL. 1 + 2 - Open Circuit/Short To B+ P1313: Combustion Detection Bank 1 - Open Circuit/Short To B+ P1320: Ignition Discharge Module - Not Powered, Bank 2 P1324: Combustion Detection Bank 2 - Open Circuit/Short To B+ P1334: Combustion Detection Cylinders 3 + 4 - Open Circuit/Short To B+ P1390: Random Misfire Detected - Catalyst Damaging, Fuel Level Low P1391: Cylinder 1 Misfire Detected - Catalyst Damaging, Fuel Level Low P1392: Cylinder 2 Misfire Detected - Catalyst Damaging, Fuel Level Low P1393: Cylinder 3 Misfire Detected - Catalyst Damaging, Fuel Level Low P1394: Cylinder 4 Misfire Detected - Catalyst Damaging, Fuel Level Low P1395: Cylinder 5 Misfire Detected - Catalyst Damaging, Fuel Level Low P1396: Cylinder 6 Misfire Detected - Catalyst Damaging, Fuel Level Low P1413: Secondary Air Injection Relay Circuit - Open/Short To Ground P1414: Secondary Air Injection Relay Circuit - Short To B+ P1441: EVAP Purge Valve - Malfunction & MALFUNCTIONAL Fuel Level Sensor P1442: EVAP - Small Leakage In System & MALFUNCTIONAL Fuel Level Sensor P1444: Canister Close Valve Circuit - Open/Short To Ground P1445: Canister Close Valve Circuit - Short To B+ P1451: EVAP Tank Pressure Sensor - Performance Problem P1452: EVAP Tank Pressure Sensor - Value Too Low When Depressurized P1453: EVAP Tank Pressure Sensor - Value Too High When Depressurized P1455: EVAP Tank Pressure Sensor - Serious Leakage In System And MALFUNCTIONAL Fuel Level Sensor P1456: Tank Purging - Leak In System P1460: Immobilizer Active P1491: EVAP Tank Pressure Sensor - Performance Problem & MALFUNCTIONAL Fuel Level Sensor P1492: EVAP Tank Pressure Sensor - Value Too Low When Depressurized & MALFUNCTIONAL Fuel Level Sensor P1493: EVAP Tank Pressure Sensor - Value Too High When Depressurized & MALFUNCTIONAL Fuel Level Sensor P1530: Pedal Position Sensor 1 & 2 Circuit - Sum Out Of Range P1531: Pedal Position Sensor 1 & 2 Circuit - Adapted Sum Out Of Range P1532: Pedal Position Sensor 1 & 2 Circuit - Control Module Inputs Shorted To Each Other P1549: Charge Air - Malfunction. P1576: Brake Light Switch Circuit - Open/Short To B+ P1577: Brake Light Switch Circuit - Short To Ground P1601: Internal Control Module - Malfunction P1602: Internal Control Module - Malfunction P1603: Internal Control Module - Malfunction P1604: Internal Control Module - Malfunction P1605: Internal Control Module - Malfunction P1606: Internal Control Module - Malfunction P1607: Internal Control Module - Malfunction P1608: Internal Control Module - Malfunction P1609: Internal Control Module - Malfunction. P1610: Internal Control Module - Malfunction P1611: Internal Control Module - Malfunction P1613: Internal Control Module - Malfunction P1614: Internal Control Module - Malfunction P1621: Internal Control Module - Malfunction P1622: No Bus Data From MIU P1623: No Bus Data From TCM P1624: Check Engine Light On - Request (Bus From TCM) P1625: No Bus Data From ECM Or TCM P1631: Internal Control Module - Malfunction P1632: Internal Control Module - Malfunction P1633: Internal Control Module - Malfunction P1640: Main Relay Circuit - No Voltage To Control Module Pin 1 P1641: Fuel Pump Relay - No Voltage To Fuel Pump & O2S Preheating P1652: Main Relay Coil Circuit - Open/Short To Ground P1653: Main Relay Coil Circuit - Short To B+ P1654: Fuel Pump Relay Coil Circuit - Open/Short To Ground P1655: Fuel Pump Relay Coil Circuit - Short To B+ P1656: A/C Relay Coil Circuit - Open/Short To Ground P1657: A/C Relay Coil Circuit - Short To B+ P1658: Charge Air Bypass Valve Circuit - Open/Short To Ground P1659: Charge Air Bypass Valve Circuit - Short To B+ P1662: Charge Air Control Valve Circuit - Open/Short To Ground P1663: Charge Air Control Valve Circuit - Short To B+ P1670: Throttle Limp-Home Relay Coil Circuit - Open/Short To Ground P1671: Throttle Limp-Home Relay Coil Circuit - Short To B+ P1676: Injector Circuit - Open/Short To Ground Or B+ Control Module Connections