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.
Pinpoint Test B : The Intermittent And/Or Low Speed Windshield Wipers Are Inoperative: Notes
Refer to Wipers and Washers for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Wipers and Washers - System Operation and Component Description .
SCCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1131:08 | Wiper motor module: Bus Signal / Message Failure | Sets when the SCCM detects a communication fault with the windshield wiper motor over the LIN. |
| B1131:11 | Wiper motor module: Circuit Short to Ground | Sets when the SCCM detects a short to ground from the windshield wiper motor LIN circuit. |
Possible Sources
- Wiring, terminals or connectors
- Wiper/washer switch
- Windshield wiper motor
- Rain sensor
- SCCM
Visual Inspection and Diagnostic Pre-checks
- Inspect the wiper/washer switch for damage
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.