Checking the Relay's Control Module Output

Checking the Relay's Control Module Output












- Connect test lamp 86 11 857 to pins 4 (86) and 5 (85) of the relay holder.







Activate: Fuel Pump Relay (Max 30s.) (ON)







- The 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 - II

YES - Checking the Relay Power Supply - II