Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1987 Audi 5000 CS, AutomaticFACTORY OEM SERVICE PROCEDURE
All Models
- Item Being Tested - ABS Control Unit Ground (Terminal No. 10) Place ABS tester in program switch position No. 7. When button No. 5 lights up, press button. Reading on ABS tester should be 80-300 millivolts. If correct, TEST 7 is completed.
- If reading is incorrect, turn ignition off. Use ohmmeter to check continuity between terminal No. 10 in plug for ABS control unit and ground. See Figure . If there is no continuity, repair wiring harness to restore continuity.
IDENTIFICATION
| Fig. # | Identification |
|---|---|
| 6 | ABS Control Unit Terminal ID |
| 7 | Solenoid Valve Relay Terminal ID |
| 8 | ABS Power Supply Relay (Rear) |
| 9 | ABS Power Supply Relay Contacts (Front) |
| 10 | ID of Terminal in Plug for Hydraulic Modulator |
| 11 | ID of Terminal is Socket on Hydraulic Modulator |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.