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All Models

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.
  1. Item Being Tested - ABS Control Unit Regulated Voltage Place ABS tester in program switch position No. 13. When button No. 5 lights up, press button.
  2. Voltage reading on ABS tester should be 4.75-5.25 volts. If correct, TEST 13 is completed. If reading is incorrect, replace control unit.