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 MANUALSCHEVROLET1997CHEVY EXPRESS G3500, VAN CARGO, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 15 (ENGINE CONTROLS - TESTS W/CODES - 4.3L)SELF-DIAGNOSTIC SYSTEMTROUBLE CODE DEFINITIONS
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 F
Trouble Code Definitions
1997 Chevrolet Chevy Express G3500, Van Cargo, 6.5 FSECTION Trouble Code Definitions
WARNING: This page is about a different variant/trim than selected.
TROUBLE CODE DEFINITION
| Code No. | Circuit Affected |
|---|---|
| P0101 | MAF System Performance |
| P0102 | MAF Sensor Circuit Low Frequency |
| P0103 | MAF Sensor Circuit High Frequency |
| P0106 | MAP Sensor System Performance |
| P0107 | MAP Sesnor Circuit Low Voltage |
| P0108 | MAP Sensor Circuit High Voltage |
| P0112 | IAT Sensor Circuit Low Voltage |
| P0113 | IAT Sensor Circuit High Voltage |
| P0117 | ECT Sensor Circuit Low Voltage |
| P0118 | ECT Sensor Circuit High Voltage |
| P0121 | TP Sensor System Performance |
| P0122 | TP Sensor Circuit Low Voltage |
| P0123 | TP Sensor Circuit High Voltage |
| P0125 | ECT Excessive Time To Reach Closed Loop |
| P0131 | HO2S Circuit Low Voltage-Bank 1, Sensor 1 |
| P0132 | HO2S Circuit High Voltage-Bank 1, Sensor 1 |
| P0133 | HO2S Slow Response-Bank 1, Sensor 1 |
| P0134 | HO2S Insufficient Activity-Bank 1, Sensor 1 |
| P0135 | HO2S Heater Circuit-Bank 1, Sensor 1 |
| P0137 | HO2S Circuit Low Voltage-Bank 1, Sensor 2 |
| P0138 | HO2S Circuit High Voltage Bank 1, Sensor 2 |
| P0140 | HO2S Insufficient Activity-Bank 1, Sensor 2 |
| P0141 | HO2S Heater Circuit-Bank 1, Sensor 2 |
| P0143 | HO2S Circuit Low Voltage-Bank 1, Sensor 3 |
| P0144 | HO2S Circuit High Voltage-Bank 1, Sensor 3 |
| P0146 | HO2S Insufficient Activity-Bank 1, Sensor 3 |
| P0147 | HO2S Heater Circuit-Bank 1, Sensor 3 |
| P0151 | HO2S Circuit Low Voltage-Bank 2, Sensor 1 |
| P0152 | HO2S Circuit High Voltage-Bank 2, Sensor 1 |
| P0153 | HO2S Slow Response-Bank 2, Sensor 1 |
| P0154 | HO2S Insufficient Activity-Bank 2, Sensor 1 |
| P0155 | HO2S Heater Circuit-Bank 2, Sensor 1 |
| P0171 | Fuel Trim System Lean-Bank 1 |
| P0172 | Fuel Trim System Rich-Bank 1 |
| P0174 | Fuel Trim System Lean-Bank 2 |
| P0175 | Fuel Trim System Rich-Bank 2 |
| P0300 | Engine Misfire Detected |
| P0301 | Cyl. No. 1 Misfire Detected |
| P0302 | Cyl. No. 2 Misfire Detected |
| P0303 | Cyl. No. 3 Misfire Detected |
| P0304 | Cyl. No. 4 Misfire Detected |
| P0305 | Cyl. No. 5 Misfire Detected |
| P0306 | Cyl. No. 6 Misfire Detected |
| P0325 | Knock Sensor Circuit |
| P0327 | Knock Sensor Low Voltage |
| P0336 | CKP Sensor Circuit Performance |
| P0337 | CKP Sensor Circuit Low Frequency |
| P0338 | CKP Sensor Circuit High Frequency |
| P0339 | CKP Sensor Circuit Intermittent |
| P0340 | CKP Sensor Circuit |
| P0341 | CMP Sensor Circuit Performance |
| P0401 | EGR System Performance |
| P0420 | TWC System Low Efficiency-Bank 1 |
| P0430 | TWC Low Efficiency-Bank 2 |
| P0441 | EVAP System Incorrect/No Flow Purge Flow |
| P0500 | Vehicle Speed Sensor Circuit |
| P0506 | Idle RPM Low (IAC Responding) |
| P0507 | Idle RPM High (IAC Responding) |
| P1106 | MAP Sensor Circuit Intermittentl High Voltage |
| P1107 | MAP Sensor Circuit Intermittentl Low Voltage |
| P1111 | IAT Sensor Circuit Intermittent High Voltage |
| P1112 | IAT Sensor Circuit Intermittent Low Voltage |
| P1114 | ECT Sensor Circuit Intermittent Low Voltage |
| P1115 | ECT Sensor Circuit Intermittent High Voltage |
| P1121 | TP Sensor Voltage Intermittentl High |
| P1122 | TP Sensor Voltage Intermittentl Low |
| P1133 | HO2S Insufficient Switching-Bank 1, Sensor 1 |
| P1134 | HO2S Transition Time Ratio-Bank 1, Sensor 1 |
| P1153 | HO2S Insufficient Switching-Bank 2, Sensor 1 |
| P1154 | HO2S Transition Time Ratio-Bank 2, Sensor 1 |
| P1345 | CKP/CMP Sesnor Correlation |
| P1351 | IC Circuit High Voltage |
| P1361 | IC Circuit Low Voltage |
| P1380 | EBCM DTC Detected Rough Road Data Unusable |
| P1381 | Misfire Detected-No EBCM/PCM/VCM Serial Data |
| P1415 | AIR System-Bank 1 |
| P1416 | AIR System-Bank 2 |
| P1441 | EVAP System Flow During Non-Purge |
| P1508 | IAC System-Low RPM |
| P1509 | IAC System-High RPM |
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.