S4 V8-4.2L (BHF) (2004)
-
Connect multimeter between terminal 2 and 3 of harness connector for voltage measurement.
-
Operate starter briefly.
-
Specified value: approx. battery voltage
-
Switch ignition off.
If specified value is not obtained:
-
Check wire connections
-
Connect multimeter between terminal 3 and 4 of harness connector for voltage measurement.
-
Switch ignition on.
-
Specified value: about 5 V
-
Switch ignition off.
If specified value is not obtained:
Checking wire connections
NOTE: Signal wire is also checked during wire test.
-
Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. See: Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting/Test Box, Connecting For Wiring and Component Test
-
Check the following wire connections for open circuit according to wiring diagram:
Harness connector Terminal
Measure to