Checking the Washer Fluid Pump Power Supply - I

Checking the Washer Fluid Pump Power Supply







Unplug the connector:
- Motor, washer fluid pump (63)

















- Connect test lamp 86 11 857 to pin 1 of the female connector and a good grounding point.












- Activate the rear window washer with the switch.







- The test lamp should light.

Checking the wiring harness
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - V

YES - Checking the Washer Fluid Pump Grounding - I