lemon-mirror:
Home >> Lincoln >> 1997 >> Mark VIII Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnostic Trouble Code Tests >> Test A: No Communication With Abs Control Module

Test A: No Communication With Abs Control Module

  1. Check Ground

    Turn ignition off. Disconnect ABS control module 25-pin connector. Connect Breakout Box (014-00322) and ABS Adapter (T90P-50-ALA). Measure resistance between breakout box test terminal No. 24 and ground. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open or high resistance in Black wire and retest system. See WIRING DIAGRAM  .

  2. Check Black Wire

    Measure resistance between breakout box terminal No. 8 and ground. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open or high resistance in Black wire and retest system. See WIRING DIAGRAM  .

  3. Check Power Supply

    Measure voltage between breakout box terminals No. 8 and 9. If battery voltage does not exist, go to next step. If battery voltage exists, go to step 6).

  4. Check Fuse No. 21

    Inspect fuse No. 21 (20-amp) located at power distribution box. If fuse is faulty, go to next step. If fuse is good, repair open Tan/Red wire and retest system. See WIRING DIAGRAM  .

  5. Check Tan/Red Wire For Short To Ground

    Measure resistance between breakout box terminals No. 8 and 9. If resistance is 10 k/ohms or less, repair short to ground in Tan/Red wire. If resistance is greater than 10 k/ohms, replace fuse No. 21 and retest system. If fuse fails again, replace ABS control module. After repair, retest system.

  6. Check Second Battery Supply

    Measure voltage between breakout box terminals No. 8 and 25. If battery voltage does not exist, go to next step. If battery voltage exists, go to step 9).

  7. Check Fuse No. 20

    Inspect fuse No. 20 (30-amp) located at power distribution box. If fuse is faulty, go to next step. If fuse is good, repair open in Red wire and retest system. See WIRING DIAGRAM  .

  8. Check Red Wire For Short To Ground

    Measure resistance between breakout box terminals No. 8 and 25. If resistance is 10 k/ohms or less, repair short to ground in Red wire. If resistance is greater than 10 k/ohms, replace fuse No. 20 and retest system. If fuse fails again, replace ABS control module. After repair, retest system.

  9. Check Ignition Power Supply

    Turn ignition on. Measure voltage between breakout box terminals No. 8 and 23. If battery voltage does not exist, go to next step. If battery voltage exists, go to MODULE COMMUNICATIONS NETWORK article in the ACCESSORIES & EQUIPMENT section.

  10. Check Fuse Junction Panel Fuse No. 21

    Inspect fuse junction panel fuse No. 21 (10-amp). If fuse is faulty, go to next step. If fuse is good, repair open in Light Blue/Pink wire and retest system. See WIRING DIAGRAM  .

  11. Check Light Blue/Pink Wire For Short To Ground

    Measure resistance between breakout box terminals No. 8 and 23. If resistance is 10 k/ohms or less, repair short to ground in Light Blue/Pink wire. If resistance is greater than 10 k/ohms, replace fuse No. 21 (10-amp) and retest system. If fuse fails again, replace ABS control module. After repair, retest system.
· About lemon-mirror