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WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1989 Audi 90, 1989 Audi 80, 1989 Audi 200, 1989 Audi 100, and 1988 Audi 90. However, it is still accessible from the selected car via links, so may be relevant.
- Item Being Tested - ABS Control Unit Test Cycle Place ABS tester in program switch position No. 16. When button No. 5 lights up, press and hold button for at least 3 seconds.
- When button is depressed, the anti-lock indicator light in vehicle must go out after about one second. Indicator light might flicker as return pump starts.
- If indicator light does not go out, repeat step 1) with engine running. If indicator light still does not go out, replace ABS control unit.