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.
Body Control Module (BCM) DTC Table
| DTC | Description | Action |
|---|---|---|
| B1087:86 | LIN Bus "A": Signal Invalid |
|
| B1087:88 | LIN Bus "A": Bus off |
|
| B1130:07 | Light Switch Module: Mechanical Failure | INSTALL a new headlamp switch. REFER to: HEADLAMP SWITCH . |
| B1130:83 | Light Switch Module: Value of Signal Protection Calculation Incorrect | GO to PINPOINT TEST C |
| B1130:87 | Light Switch Module: Missing message | GO to PINPOINT TEST C |
| B1D00:11 | Left Low Beam: Circuit Short to Ground | GO to PINPOINT TEST A |
| B1D00:15 | Left Low Beam: Circuit Short to Battery or Open |
|
| B1D01:11 | Right Low Beam: Circuit Short to Ground | GO to PINPOINT TEST A |
| B1D01:15 | Right Low Beam: Circuit Short to Battery or Open |
|
Use the Manual With the Right Hardware
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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.
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