Fault Diagnosis, Fault Codes: Notes

DTC	Definition
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
P0327	Knock Sensor Circuit - Low Input (Bank 1)
P0336	Crankshaft Position Sensor Circuit - Performance Problem
P0337	Crankshaft Position Sensor - No Input
P0340	Camshaft Position Sensor - Malfunction
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 - Idling Speed Too Low
P0507	Idle Speed Control - Idling Speed Too High
P0605	Internal Control Module Malfunction
P1105	Charge Air Absolute Pressure Sensor Circuit - Performance Problem
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 & 2 Circuit - Sum Out Of Range (Faulty Signal From Throttle Disc Position Sensor)
P1231	Throttle Position Sensor 1 & 2 Circuit - Sum Out Of Range (No Limp Home)
P1240	Throttle Motor Circuit Shorted
P1251	Throttle Motor - Full PWM In Closing Direction (Note: May Set If Mechanism Is Not Reset)
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 (Note: May Set If Mechanism Is Not Reseted)
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
P1310	Ignition Discharge Module - Not Powered (Bank 1)
P1312	Combustion Detection Cyl. 1+2 - Open Circuit/Short To B+
P1334	Combustion Detection Cyl. 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)
P1441	EVAP Purge Valve Malfunction & Malfunctioning Fuel Level Sensor
P1442	EVAP Small Leakage In System & Malfunctioning 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 & Malfunctioning Fuel Level Sensor
P1456	Tank Purging, Leak In System
P1460	Immobilizer Active (Note: If New T7, MIU Or Twice Module, Program Code In Twice)
P1491	EVAP Tank Pressure Sensor - Performance Problem & Malfunctioning Fuel Level Sensor
P1492	EVAP Tank Pressure Sensor - Value Too Low When Depressurized & Malfunctioning Fuel Level Sensor
P1493	EVAP Tank Pressure Sensor Value Too High When Depressurized & Malfunctioning 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 Request (Bus From TCM)
P1625	No Bus Data From TC/ABS
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	Limp-Home Relay - Open Circuit Or Short To Ground
P1671	Limp-Home Relay - Short To B+
P1676	Injector Circuit - Open/Short To Ground Or B+