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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 297 (POWER SEATS)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Pontiac Grand Prix Base
Diagnostic Code Index
2008 Pontiac Grand Prix BaseSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1335 | B1335 00: Device Power 3 Circuit B1335 0B: Device Power 3 Circuit Current Above Threshold B1335 42: Device Power 3 Circuit Calibration Data Set Not Programed B1335 4B: Device Power 3 Circuit Calibration Not Learned |
| DTC B1395 | B1395 02: Device Voltage Reference Output Circuit Shorted to Ground B1395 05: Device Voltage Reference Output Circuit Shorted to Battery or Open |
| DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 | B1735 01: Driver Seat Front Up Switch Circuit Short to Battery B1740 01: Driver Seat Front Down Switch Circuit Short to Battery B1745 01: Driver Seat Rear Up Switch Circuit Short to Battery B1750 01: Driver Seat Rear Down Switch Circuit Short to Battery B1755 01: Driver Seat Assembly Horizontal Forward Switch Circuit Short to Battery B1760 01: Driver Seat Assembly Horizontal Rearward Switch Circuit Short to Battery B1815 01: Driver Seat Recline Forward Switch Circuit Short to Battery B1820 01: Driver Seat Recline Rearward Switch Circuit Short to Battery |
| DTC B1825, B1850, B1860, B2355, B2365, or B2375 | B1825 01: Driver Seat Recline Position Sensor Circuit Short to Battery B1825 06: Driver Seat Recline Position Sensor Circuit Short to Ground or Open B1825 5A: Driver Seat Recline Position Sensor Circuit Plausibility Failure B1850 01: Driver Seat Lumbar Horizontal Position Sensor Circuit Short to Battery B1850 06: Driver Seat Lumbar Horizontal Position Sensor Circuit Short to Ground or Open B1850 5A: Driver Seat Lumbar Horizontal Position Sensor Circuit Plausibility Failure B1860 01: Driver Seat Lumbar Vertical Position Sensor Circuit Short to Battery B1860 06: Driver Seat Lumbar Vertical Position Sensor Circuit Short to Ground or Open B1860 5A: Driver Seat Lumbar Vertical Position Sensor Circuit Plausibility Failure B2355 01: Driver Seat Front Vertical Position Sensor Circuit Short to Battery B2355 06: Driver Seat Front Vertical Position Sensor Circuit Short to Ground or Open B2355 5A: Driver Seat Front Vertical Position Sensor Circuit Plausibility Failure B2365 01: Driver Seat Rear Vertical Position Sensor Circuit Short to Battery B2365 06: Driver Seat Rear Vertical Position Sensor Circuit Short to Ground or Open B2365 5A: Driver Seat Rear Vertical Position Sensor Circuit Plausibility Failure B2375 01: Driver Seat Assembly Horizontal Position Sensor Circuit Short to Battery B2375 06: Driver Seat Assembly Horizontal Position Sensor Circuit Short to Ground or Open B2375 5A: Driver Seat Assembly Horizontal Position Sensor Circuit Plausibility Failure |
| DTC B3920 or B3921 | B3920 01: Group 1 Seat Motors Circuit Shorted to Battery or Open B3920 02: Group 1 Seat Motors Circuit Shorted to Ground |
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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.