Operation CHARM
: Car repair manuals for everyone.
Home
>>
Audi
>>
1990
>>
Coupe Quattro 20V L5-2309cc 2.3L DOHC (7A)
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Transmission Control Systems
>>
Relays and Modules - Transmission and Drivetrain
>>
Relays and Modules - Differential
>>
Control Unit
>>
Testing and Inspection
Control Unit: Testing and Inspection
Quick Checks
:
1.
Engage Reverse gear. If the back-up lights operate fuse #12 (S12) is OK.