Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2004MONTANA VAN PASSENGERREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXENGINE PERFORMANCE DTCS (A00188148) (A00188149) (A00188150)
2004 Pontiac Montana Van Passenger
Engine Performance DTCS (A00188148) (A00188149) (A00188150)
2004 Pontiac Montana Van PassengerSECTION Engine Performance DTCS (A00188148) (A00188149) (A00188150)
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC P0030 | HO2S Heater Control Circuit Sensor 1 |
| DTC P0101 | Mass Air Flow (MAF) Sensor Performance |
| DTC P0102 | Mass Air Flow (MAF) Sensor Circuit Low Frequency |
| DTC P0103 | Mass Air Flow (MAF) Sensor Circuit High Frequency |
| DTC P0107 | Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage |
| DTC P0108 | Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage |
| DTC P0112 | Intake Air Temperature (IAT) Sensor Circuit Low Voltage |
| DTC P0113 | Intake Air Temperature (IAT) Sensor Circuit High Voltage |
| DTC P0116 | Engine Coolant Temperature (ECT) Sensor Performance |
| DTC P0117 | Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage |
| DTC P0118 | Engine Coolant Temperature (ECT) Sensor Circuit High Voltage |
| DTC P0121 | Accelerator Pedal Position (APP) Sensor 1 Circuit Performance |
| DTC P0122 | Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage |
| DTC P0123 | Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage |
| DTC P0125 | Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control |
| DTC P0128 | Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature |
| DTC P0130 | HO2S Circuit Closed Loop (CL) Performance Sensor 1 |
| DTC P0131 | HO2S Circuit Low Voltage Sensor 1 |
| DTC P0132 | HO2S Circuit High Voltage Sensor 1 |
| DTC P0133 | HO2S Slow Response Sensor 1 |
| DTC P0134 | HO2S Circuit Insufficient Activity Sensor 1 |
| DTC P0135 | HO2S Heater Performance Sensor 1 |
| DTC P0136 | HO2S Circuit Sensor 2 |
| DTC P0137 | HO2S Circuit Low Voltage Sensor 2 |
| DTC P0138 | HO2S Circuit High Voltage Sensor 2 |
| DTC P0140 | HO2S Circuit Insufficient Activity Sensor 2 |
| DTC P0141 | HO2S Heater Performance Sensor 2 |
| DTC P0171 | Excessively Lean Condition |
| DTC P0172 | Excessively Rich Condition |
| DTC P0201, P0202, P0203, P0204, P0205, P0206 | Injector Control Circuit |
| DTC P0230 | Fuel Pump Relay Control Circuit |
| DTC P0300 | Engine Misfire Detected |
| DTC P0315 | Crankshaft Position (CKP) System Variation Not Learned |
| DTC P0325 | Knock Sensor Module Performance |
| DTC P0327 | Knock Sensor (KS) Circuit |
| DTC P0336 | Crankshaft Position (CKP) Sensor Performance |
| DTC P0341 | Camshaft Position (CMP) Sensor Performance |
| DTC P0401 | Exhaust Gas Recirculation (EGR) Flow Insufficient |
| DTC P0403 | Exhaust Gas Recirculation (EGR) Solenoid Control Circuit |
| DTC P0404 | Exhaust Gas Recirculation (EGR) Open Position Performance |
| DTC P0405 | Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage |
| DTC P0420 | Catalyst System Low Efficiency |
| DTC P0442 | Evaporative Emission (EVAP) System Small Leak Detected |
| DTC P0443 | Evaporative Emission (EVAP) Purge Solenoid Control Circuit |
| DTC P0446 | Evaporative Emission (EVAP) Vent System Performance |
| DTC P0449 | Evaporative Emission (EVAP) Vent Solenoid Control Circuit |
| DTC P0452 | Fuel Tank Pressure Sensor Circuit Low Voltage |
| DTC P0453 | Fuel Tank Pressure Sensor Circuit High Voltage |
| DTC P0455 | Evaporative Emission (EVAP) System Large Leak Detected |
| DTC P0496 | Evaporative Emission (EVAP) System Flow During Non-Purge |
| DTC P0506 | Idle Speed Low |
| DTC P0507 | Idle Speed High |
| DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 | ECU Malfunction |
| DTC P0641 | 5 Volt Reference 1 Circuit |
| DTC P0650 | Malfunction Indicator Lamp (MIL) Control Circuit |
| DTC P0651 | 5 Volt Reference 2 Circuit |
| DTC P1106 | Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage |
| DTC P1107 | Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage |
| DTC P1111 | Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage |
| DTC P1112 | Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage |
| DTC P1114 | Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage |
| DTC P1115 | Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage |
| DTC P1121 | Throttle Position (TP) Sensor Circuit Intermittent High Voltage |
| DTC P1122 | Throttle Position (TP) Sensor Circuit Intermittent Low Voltage |
| DTC P1133 | HO2S Insufficient Switching Sensor 1 |
| DTC P1134 | HO2S Transition Time Ratio Sensor 1 |
| DTC P1351 | Ignition Coil Control Circuit High Voltage |
| DTC P1352 | Ignition Bypass Circuit High Voltage |
| DTC P1361 | Ignition Control (IC) Circuit Low Voltage |
| DTC P1362 | Ignition Bypass Circuit Low Voltage |
| DTC P1374 | Crankshaft Position (CKP) High to Low Resolution Frequency Correlation |
| DTC P1380 | Misfire Detected - Rough Road Data Not Available |
| DTC P1381 | Misfire Detected - No Communication with Brake Control Module |
| DTC P1404 | Exhaust Gas Recirculation (EGR) Closed Position Performance |
| DTC P1640 | Control Module Output A Circuit |
| DTC P1650 | Control Module Output B Circuit |
| DTC P1660 | Control Module Output C Circuit |
| DTC P1670 | Control Module Output D Circuit |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.