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 1568 (DOOR LOCK SYSTEM AND DOOR HANDLES)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
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B2495 | B2495 01: Liftgate Latch Control Circuit Short to Battery B2495 02: Liftgate Latch Control Circuit Short to Ground |
| DTC B2976 | B2976 00: Driver Door Ajar Circuit |
| DTC B2991 | B2991 00: Passenger Door Ajar Circuit |
| DTC B3125, B3130, or B3135 | B3125 00: Left Front/Driver Door Only Unlock Circuit B3130 00: All Door Unlock Circuit B3135 00: All Door Lock Circuit |
| DTC B3140 or B3150 | B3140 00: Driver Unlock Switch Circuit B3150 00: Driver Lock Switch Circuit |
| DTC B3265 | B3265 00: Hatch Release Output Circuit |
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.