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 MANUALSCHEVROLET2002IMPALA LSREPAIR AND DIAGNOSISELECTRICALGAUGESANALOG INSTRUMENT PANELSSELF-DIAGNOSTIC SYSTEMDIAGNOSTIC TROUBLE CODE DEFINITIONS
2002 Chevrolet Impala LS
Diagnostic Trouble Code Definitions
2002 Chevrolet Impala LSSECTION Diagnostic Trouble Code Definitions
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC (1) | Definition | Perform Test | ||
|---|---|---|---|---|
| B0160 | Ambient Air Temperature Sensor Circuit Low | B0160 | ||
| B0162 | Temperature Sensor Circuit Open | B0162 | ||
| B0931 | Compass Sensor Circuit Malfunction | B0931 | ||
| B2823 | Trip Odometer Reset Switch Circuit Low | B2823 | ||
| B2964 | Incorrect Ignition Lock Cylinder Signal Voltage Input | B2964 | ||
| C1245 | Tire Inflation Monitor Circuit Low | C1245 | ||
| P0462 | Fuel Level Signal Voltage Low | P0462 | ||
| P0463 | Fuel Level Signal Voltage High | P0463 | ||
| P1189 | Oil Pressure Switch Signal Voltage Is High | P1189 | ||
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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.