Audi Workshop Service and Repair Manuals > 80 Quattro L5-2309cc 2.3L SOHC (NG) (1988) > Transmission and Drivetrain | Transmission Control Systems | Relays and Modules - Transmission and Drivetrain | Relays and Modules - Differential | Control Unit, Differential Lock | Component Information | Diagrams | Page 5854

Brakes and Traction Control > < Basic Electricity|Page 5853

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Control Unit: Testing and Inspection

Quick Checks:

1. Engage Reverse gear. If the back-up lights operate fuse #12 (S12) is OK.

Transmission and Drivetrain
Transmission Control Systems / Relays and Modules - Transmission and Drivetrain / Relays and Modules - Differential / Control Unit, Differential Lock / Component Information
Diagrams
Page 5854

Brakes and Traction Control > < Basic Electricity|Page 5853