Visual Inspection and Diagnostic Pre-checks
Inspect the wiper/washer switch for damage
PINPOINT TEST D : THE WINDSHIELD WIPERS STAY ON CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
D1 CHECK THE WINDSHIELD WIPER OPERATION WITH THE IGNITION OFF
Ignition OFF. Observe the windshield wiper operation.
Do the windshield wipers operate with the ignition off?
Yes | GO to D5 | |
|---|---|---|
No | GO to D2 | |
D2 CHECK THE WIPER/WASHER SWITCH INPUT
Ignition ON. Make sure the wiper/washer switch is in the off setting. Using a diagnostic scan tool, view the following SCCM wiper/washer switch Parameter Identifications (PIDs):
WIPE_SINGLE F_WASH_SW F_WIP_INT_D1 F_WIP_INT_D2 F_WIP_INT_D3 F_WIP_INT_D4 F_WIP_INT_D5 F_WIP_INT_D6 F_WIP_SLO_SW F_WIPE_FAST_SW
Do all of the Parameter Identifications (PIDs) indicate the wipers should be off?
Yes | GO to D3 | |
|---|---|---|
No | INSTALL a new wiper/washer switch. REFER to: Steering Column Multifunction Switch RH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). TEST the system for normal operation. If the concern is still present, INSTALL a new SCCM. REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). | |
D3 CHECK THE WINDSHIELD WIPER OPERATION WITH THE SCCM (STEERING COLUMN CONTROL MODULE) DISCONNECTED
Ignition OFF. Disconnect SCCM C226A. Ignition ON.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.