audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

How to Find Wiring Diagrams|Page 4395 > < How to Find Wiring Diagrams|Page 4393
Page 3
background image

-

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

How to Find Wiring Diagrams|Page 4395 > < How to Find Wiring Diagrams|Page 4393