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.
DTC B2552: Backup Lamp Circuit Low: Description
Body Control Module (BCM) provides ground to backup lamp relay through circuit No. 38 (Dark Blue wire) when PCM sends BCM signal that vehicle is in reverse. DTC B2552 will set when BCM detects short to ground or open in circuit No. 38 (Dark Blue wire).
DTC B2552 requires an ignition cycle to clear current code. If conditions for malfunction no longer exist, history DTC will clear after 100 consecutive ignition cycles. DTC B2552 will also clear when conditions no longer exist or scan tool is used to clear codes.
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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.