B0188

Rear Wiper Motor Circuit

Moderate severity

The body control module has detected a fault in the rear wiper motor circuit. Possible faults include an open or shorted motor winding, a stuck mechanism, or wiring damage in the tailgate harness.

Common causes

Rear wiper motor failed
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $60-390
Tailgate harness broken at hinge
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $60-390
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does B0188 mean?

B0188 means "Rear Wiper Motor Circuit". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B0188?

rear wiper motor failed; tailgate harness broken at hinge; rear wiper fuse blown — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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