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.
Erasing Codes & Retesting
Erasing codes and retesting will give an indication of whether codes are hard or intermittent defects. Hard codes reset immediately and will be displayed during retest.
Disconnect negative battery cable. Press brake pedal for 5-10 seconds. Turn off VOM or Super Star II tester. Reconnect battery. Perform tests under RETRIEVING CODES to again display and record codes.
| Service Code | Fault | Circuit & Pinpoint Test | ||||
|---|---|---|---|---|---|---|
| 01 | Ignition Diagnostic Monitor | IDM | ||||
| 02 (1) | Crankshaft Position Sensor | CPS | ||||
| 03 (2) | Cylinder Identification Sensor | CID | ||||
| 06 (2) | Vehicle Speed Sensor | VSS | ||||
| 08 | Vane Airflow Meter | VAF | ||||
| 09 | Engine Coolant Temperature Sensor | ECT | ||||
| 10 | Vane Air Temperature Sensor | VAT | ||||
| 12 (2) | Throttle Position Sensor | TP | ||||
| 14 | Barometric Pressure Sensor | BP | ||||
| 15 | Oxygen Sensor | O2S | ||||
| 17 | Oxygen Sensor | O2S | ||||
| 25 (2) | Fuel Pressure Regulator Control Solenoid | FPRC | ||||
| 26 | Canister Purge Control Solenoid | CANP | ||||
| 34 | Idle Speed Control | ISC | ||||
| Codes Not Listed | Power & Ground Connections | PGC | ||||
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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.