Service Hints

B8 (A), B9 (B) BODY ECU
15 - GROUND : Approx. 12 volts with the ignition SW at ON position
8 - GROUND : Always approx. 12 volts
(B) 1 - GROUND : Always continuity

D6, D7, D8, D9 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1 - GROUND : Closed with each of the door open

U1 UNLOCK WARNING SW
1 - 2 : Closed with the ignition key in the cylinder