Pinpoint Test B: The Intermittent And/Or Low Speed Windshield Wipers Are Inoperative: Notes
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
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 .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| SCCM B1131:08 | Wiper motor module: Bus Signal/Message Failures | Sets when the SCCM detects a communication fault with the windshield wiper motor over the LIN. |
| SCCM 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 Pre-checks
- Inspect the wiper/washer switch for damage
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE:
It may be necessary to disconnect and then reconnect the battery after the repair to enable the wiper operation.