9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
1
Disconnect the fuse from the system to be checked.
2
Connect one of the voltmeter leads to B+.
3
Connect the other voltmeter lead to the point in the circuit to be checked.
4
Take a reading on the load side of the wiring harness or component and work towards the circuit's grounding point.
5
If the voltmeter shows a reading, it indicates that voltage is present at the point concerned.
Checking Voltage Drop