Checking the Power Supply

Checking The Power Supply





Unplug the connector:
- Motor, coolant circulation pump (453)









- Connect a test lamp to pin 2 of the female connector and a good grounding point.





- 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

YES - Checking the Ground Lead