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Home >> Mitsubishi >> 1993 >> Montero LS >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Trouble Shooting >> Anti-Lock Warning Light >> Ignition Switch In START Position, Warning Light Inoperative

Ignition Switch In START Position, Warning Light Inoperative

  1. Remove ABS power relay fuse No. 7 from junction block. Disconnect hydraulic unit 10-pin connector. Turn ignition on. Using DVOM, measure voltage between hydraulic unit harness connector terminal No. 8 and vehicle ground. See Figure . If battery voltage is present, go to next step. If battery voltage is not present, repair circuit between ABS warning light and hydraulic unit.
  2. Using ohmmeter, check for continuity between terminal No. 9 and vehicle ground. If continuity exists, go to next step. If continuity does not exist, repair hydraulic unit circuit.
  3. Check continuity between hydraulic unit connector terminals No. 8 and 9. If continuity exists, go to next step. If continuity does not exist, replace valve relay.
  4. Remove valve relay from hydraulic unit. Check for continuity between relay terminals No. 87a and 30. See Figure . If continuity does not exist, replace valve relay. If continuity exists, hydraulic unit wiring harness is faulty. Replace hydraulic unit.
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