Test Step 2

Test Step 2:

Electronic Power Supply Test:

Measure voltage between pin 11 and vehicle ground.
Specification: approx. battery voltage.

If no: Repair positive electric wire to control unit.
If yes: Measure voltage between pin 11 and pin 12.
Specification: approx. battery voltage.

If no: Repair negative electric wire of control unit.
If yes: Continue with Test Step 3.