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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (ENGINE CONTROLS - SELF-DIAGNOSTICS - 8.1L)DIAGNOSTIC TROUBLE CODE DEFINITIONS
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
Diagnostic Trouble Code Definitions
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Diagnostic Trouble Code Definitions
WARNING: This page is about a different variant/trim than selected.
NOTE:
DTCs are retrieved using a Tech 2 scan tool, or other OBD-II compatible scan tool connected to OBD-II 16-pin Data Link Connector (DLC). See Figure.
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | Definition | Code Type (1) | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bxxxx (2) | Body Control System Malfunction | - | ||||||||||||||||||
| Cxxxx (2) | Chassis System Malfunction | - | ||||||||||||||||||
| P0101 | Mass Airflow System Performance | B | ||||||||||||||||||
| P0102 | Mass Airflow Sensor Circuit - Low Frequency | B | ||||||||||||||||||
| P0103 | Mass Airflow Sensor Circuit - High Frequency | B | ||||||||||||||||||
| P0106 | Manifold Absolute Pressure System Performance | B | ||||||||||||||||||
| P0107 | Manifold Absolute Pressure Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0108 | Manifold Absolute Pressure Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0112 | Intake Air Temperature Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0113 | Intake Air Temperature Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0117 | Engine Coolant Temperature Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0118 | Engine Coolant Temperature Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0125 | Engine Coolant Temperature Excessive Time To Enter Closed Loop Fuel Control | B | ||||||||||||||||||
| P0128 | Engine Coolant Temperature Fails To Reach A Preset Target Temperature | B | ||||||||||||||||||
| P0131 Or P0151 | Heated Oxygen Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0132 Or P0152 | Heated Oxygen Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0133 Or P0153 | Heated Oxygen Sensor Circuit - Slow Response | B | ||||||||||||||||||
| P0134 Or P0154 | Heated Oxygen Sensor Circuit - Insufficient Activity | B | ||||||||||||||||||
| P0135 Or P0155 | Excessive Time To Enter Closed Loop | B | ||||||||||||||||||
| P0137 Or P0157 | Heated Oxygen Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0138 Or P0158 | Heated Oxygen Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0140 Or P0160 | Heated Oxygen Sensor Circuit - Insufficient Activity | B | ||||||||||||||||||
| P0141 | Heated Oxygen Sensor Circuit - Insufficient Activity | B | ||||||||||||||||||
| P0161 | Heated Oxygen Sensor Heater Circuit | B | ||||||||||||||||||
| P0161 | Heated Oxygen Sensor Heater Circuit | B | ||||||||||||||||||
| P0171 Or P0174 | Fuel Trim System Lean | B | ||||||||||||||||||
| P0172 Or P0175 | Fuel Trim System Rich | B | ||||||||||||||||||
| P0200 (3) | Injector Control Circuit | B | ||||||||||||||||||
| P0218 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0230 | Fuel Pump Control Circuit | B | ||||||||||||||||||
| P0300 | Engine Misfire Detected | B | ||||||||||||||||||
| P0325 | Knock Sensor Module Performance | B | ||||||||||||||||||
| P0327 Or P0332 | Knock Sensor Circuit | B | ||||||||||||||||||
| P0335 | Crankshaft Position Sensor Circuit | B | ||||||||||||||||||
| P0336 | Crankshaft Position Sensor Performance | B | ||||||||||||||||||
| P0341 | Camshaft Position Sensor Performance | B | ||||||||||||||||||
| P0342 | Camshaft Position Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0343 | Camshaft Position Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0351-P0358 | Ignition Coil Control Circuit | B | ||||||||||||||||||
| P0401 | EGR System - Insufficient Flow | A | ||||||||||||||||||
| P0404 | EGR Valve Operation Out Of Range | B | ||||||||||||||||||
| P0405 | EGR Position Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0410 | Secondary Air Injection System | A | ||||||||||||||||||
| P0418 | Secondary Air Injection Pump Relay Control Circuit | B | ||||||||||||||||||
| P0420 Or P0430 | Catalyst System - Low Efficiency | A | ||||||||||||||||||
| P0440 | Evaporative Emission System - Large Leak Detected | A | ||||||||||||||||||
| P0442 | Evaporative Emission System - Small Leak Detected | A | ||||||||||||||||||
| P0443 | Evaporative Emission Purge Valve Control Circuit | B | ||||||||||||||||||
| P0446 | Evaporative Emission Vent System Performance | A | ||||||||||||||||||
| P0449 | Evaporative Canister Vent Valve Control Circuit | B | ||||||||||||||||||
| P0452 | Fuel Tank Pressure Sensor Circuit - Low Voltage | B | ||||||||||||||||||
| P0453 | Fuel Tank Pressure Sensor Circuit - High Voltage | B | ||||||||||||||||||
| P0461 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P0462 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P0463 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P0500 (6) | Manual Transmission Related DTC | B | ||||||||||||||||||
| P0502 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0503 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0506 | Idle Speed Low | B | ||||||||||||||||||
| P0507 | Idle Speed High | B | ||||||||||||||||||
| P0562 (7) | Low System Voltage | C | ||||||||||||||||||
| P0563 (7) | High System Voltage | C | ||||||||||||||||||
| P0567 (8) | Cruise Control Related DTC | - | ||||||||||||||||||
| P0568 (8) | Cruise Control Related DTC | - | ||||||||||||||||||
| P0571 (8) | Cruise Control Related DTC | - | ||||||||||||||||||
| P0601-P0607, P1600, P1621, P1627, P1680, P1681 Or P1683 | Control Module Fault | A | ||||||||||||||||||
| P0606 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0608 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P0621 (7) | Generator Turn-On Signal Circuit Malfunction | - | ||||||||||||||||||
| P0650 | Malfunction Indicator Light Control Circuit | B | ||||||||||||||||||
| P0654 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P0700 | Malfunction Indicator Light Control Circuit | A | ||||||||||||||||||
| P0701 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0703 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0704 (8) | Cruise Control Related DTC | B | ||||||||||||||||||
| P0706 (4) | Transmission Range Switch Performance | A Or C | ||||||||||||||||||
| P0708 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0711 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0712 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0713 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0716 (4) | Automatic Transmission Related DTC | A, B Or C | ||||||||||||||||||
| P0717 (4) | Automatic Transmission Related DTC | A, B Or C | ||||||||||||||||||
| P0719 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0721 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0722 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0724 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0726 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0727 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0730 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P0731 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0732 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0733 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0734 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0735 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0736 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0740 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0741 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0742 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0748 (4) | Automatic Transmission Related DTC | A Or C | ||||||||||||||||||
| P0751 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0752 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0753 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P0756 (4) | Automatic Transmission Related DTC | A Or C | ||||||||||||||||||
| P0757 (4) | Automatic Transmission Related DTC | A Or C | ||||||||||||||||||
| P0758 (4) | Automatic Transmission Related DTC | A Or C | ||||||||||||||||||
| P0763 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0768 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0773 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0778 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0785 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P0840 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0841 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0842 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0843 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0845 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0846 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0847 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P0848 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1111 | Intake Air Temperature Sensor Circuit Intermittent High Voltage | C | ||||||||||||||||||
| P1112 | Intake Air Temperature Sensor Circuit Intermittent Low Voltage | C | ||||||||||||||||||
| P1114 | Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage | C | ||||||||||||||||||
| P1115 | Engine Coolant Temperature Sensor Circuit Intermittent High Voltage | C | ||||||||||||||||||
| P1120 | Throttle Position Sensor Circuit No. 1 | A | ||||||||||||||||||
| P1125 | Accelerator Pedal Position Circuit | A | ||||||||||||||||||
| P1133 Or P1153 | Heated Oxygen Sensor Insufficient Switching | B | ||||||||||||||||||
| P1134 Or P1154 | Heated Oxygen Sensor Transition Time Ratio Not Within Range | B | ||||||||||||||||||
| P1172 | Secondary Fuel Pump Insufficient/No Fuel Flow | C | ||||||||||||||||||
| P1220 | Throttle Position Sensor No. 2 Circuit | A | ||||||||||||||||||
| P1221 | Throttle Position Sensors No. 1 & 2 Correlation | A | ||||||||||||||||||
| P1258 | Engine Coolant Over Temperature - Protection Mode Active | A | ||||||||||||||||||
| P1275 | Accelerator Pedal Position Sensor No. 1 Circuit | C | ||||||||||||||||||
| P1276 | Accelerator Pedal Position Sensor No. 1 Performance | C | ||||||||||||||||||
| P1280 | Accelerator Pedal Position Sensor No. 2 Circuit | C | ||||||||||||||||||
| P1281 | Accelerator Pedal Position Sensor No. 2 Performance | C | ||||||||||||||||||
| P1285 | Accelerator Pedal Position Sensor No. 3 Circuit | C | ||||||||||||||||||
| P1286 | Accelerator Pedal Position Sensor No. 3 Performance | C | ||||||||||||||||||
| P1336 | Crankshaft Position System Variation Not Learned | A | ||||||||||||||||||
| P1380 | Misfire Detected - Rough Road Data Not Available | C | ||||||||||||||||||
| P1381 | Misfire Detected - No Communications With Brake Control Module | C | ||||||||||||||||||
| P1404 | EGR Closed Position Performance | B | ||||||||||||||||||
| P1415 Or P1416 | Secondary Air Injection System | A | ||||||||||||||||||
| P1431 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P1432 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P1433 (5) | Instrument Panel Related DTC | C | ||||||||||||||||||
| P1441 | Evaporative Emission System Flow During Non-Purge | B | ||||||||||||||||||
| P1514 | Throttle Body Performance | A | ||||||||||||||||||
| P1515 | Commanded & Actual Throttle Positions Out Of Range | A | ||||||||||||||||||
| P1516 | Predicted & Actual Throttle Positions Out Of Range | A | ||||||||||||||||||
| P1517 | Throttle Actuator Control Module Performance | A | ||||||||||||||||||
| P1518 | Throttle Actuator Control Module Serial Data Circuit | A | ||||||||||||||||||
| P1571 (2) | Antilock Brake System Related DTC | B | ||||||||||||||||||
| P1574 (8) | Cruise Control Related DTC | C | ||||||||||||||||||
| P1626 (9) | Anti-Theft System Related DTC | C | ||||||||||||||||||
| P1631 (9) | Anti-Theft System Related DTC | C | ||||||||||||||||||
| P1635 | 5-Volt Reference No. 1 Circuit | B | ||||||||||||||||||
| P1637 (7) | Generator Turn-On Signal Circuit | C | ||||||||||||||||||
| P1638 (7) | Generator Field Duty Cycle Circuit | C | ||||||||||||||||||
| P1639 | 5-Volt Reference No. 2 Circuit | B | ||||||||||||||||||
| P1688 (4) | Automatic Transmission Related DTC | - | ||||||||||||||||||
| P1709 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1710 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1711 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1712 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1713 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1714 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P1718 (4) | Automatic Transmission Related DTC | - | ||||||||||||||||||
| P1720 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1721 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1723 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1724 (4) | Automatic Transmission Related DTC | A | ||||||||||||||||||
| P1726 (4) | Automatic Transmission Related DTC | - | ||||||||||||||||||
| P1727 (4) | Automatic Transmission Related DTC | - | ||||||||||||||||||
| P1760 (4) | Automatic Transmission Related DTC | C | ||||||||||||||||||
| P1779 (4) | Automatic Transmission Related DTC | B | ||||||||||||||||||
| P1781 | Incorrect Voltage Level On Transmission Control Module Malfunction Indicator Light Request Circuit | B | ||||||||||||||||||
| P1810 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P1860 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P1870 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| P1875 (4) | Automatic Transmission Related DTC | B Or C | ||||||||||||||||||
| Uxxxx (2) | Communication Malfunction | - | ||||||||||||||||||
|
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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.