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Home >> Lincoln >> 1998 >> Mark VIII Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Symptom Tests >> Test A: No Communication With Abs Control Module

Test A: No Communication With Abs Control Module

  1. Check fuse No. 20 (30-amp) and No. 21 (20-amp) in power distribution box. If fuses are okay, go to next step. If fuses are blown, replace fuses. Retest system. If fuses blow again, check for short to ground in Red and/or Tan/Red wire(s). Repair as necessary.
  2. Inspect fuse No. 21 (10-amp) located at instrument panel fuse block. If fuse is okay, go to next step. If fuse is faulty, replace fuse and retest system. If fuse blows again, repair short to ground in Light Blue/Pink wire. Retest system.
  3. 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 terminals No. 8 and 24. 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.
  4. Measure voltage between breakout box terminals No. 8 and 23. Measure voltage between breakout box terminals No. 8 and 9. If voltage is 10 volts or less, repair open in Tan/Red and/or Light Blue/Pink. If voltage is more than 10 volts, go to appropriate MODULE COMMUNICATIONS NETWORK article in ACCESSORIES & EQUIPMENT.
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