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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1337 (POWER SEAT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Suburban C2500, 6.0 U
Diagnostic Code Index
2006 Chevrolet Suburban C2500, 6.0 USECTION Diagnostic Code Index
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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 Short to Ground B1395 05: Device Voltage Reference Output Circuit Short to Battery or Open |
| DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 | B1735 01: Seat Front Up Switch Circuit Short to Battery B1740 01: Seat Front Down Switch Circuit Short to Battery B1745 01: Seat Rear Up Switch Circuit Short to Battery B1750 01: Seat Rear Down Switch Circuit Short to Battery B1755 01: Seat Assembly Forward Switch Circuit Short to Battery B1760 01: Seat Assembly Rearward Switch Circuit Short to Battery B1815 01: Seat Recline Forward Switch Circuit Short to Battery B1820 01: Seat Recline Rearward Switch Circuit Short to Battery |
| DTC B1825, B1850, B1860, B2355, B2365, or B2375 | B1825 01: Seat Recline Position Sensor Circuit Short to Battery B1825 06: Seat Recline Position Sensor Circuit Short to Ground or Open B1825 5A: Seat Recline Position Sensor Circuit Plausibility Failure B1850 01: Left Seat Lumbar Horizontal Position Sensor Circuit Short to Battery B1850 06: Left Seat Lumbar Horizontal Position Sensor Circuit Short to Ground or Open B1850 5A: Left Seat Lumbar Horizontal Position Sensor Circuit Plausibility Failure B1860 01: Left Seat Lumbar Vertical Position Sensor Circuit Short to Battery B1860 06: Left Seat Lumbar Vertical Position Sensor Circuit Short to Ground or Open B1860 5A: Left Seat Lumbar Vertical Position Sensor Circuit Plausibility Failure B2355 01: Left Seat Front Vertical Position Sensor Circuit Short to Battery B2355 06: Left Seat Front Vertical Position Sensor Circuit Short to Ground or Open B2355 5A: Left Seat Front Vertical Position Sensor Circuit Plausibility Failure B2365 01: Left Seat Rear Vertical Position Sensor Circuit Short to Battery B2365 06: Left Seat Rear Vertical Position Sensor Circuit Short to Ground or Open B2365 5A: Left Seat Rear Vertical Position Sensor Circuit Plausibility Failure B2375 01: Left Seat Assembly Horizontal Position Sensor Circuit Short to Battery B2375 06: Left Seat Assembly Horizontal Position Sensor Circuit Short to Ground or Open B2375 5A: Left Seat Assembly Horizontal Position Sensor Circuit Plausibility Failure |
| DTC B3920 or B3921 | B3920 01: Group 1 Seat Motors Common Circuit Short to Battery B3920 02: Group 1 Seat Motors Common Circuit Short 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.