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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Anti-Lock Brake System) >> Self-Diagnostic Tests >> Test 17C - Pump Motor Circuit Not Working Properly

Test 17C - Pump Motor Circuit Not Working Properly

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAM.
  1. Turn ignition off. Disconnect pump/motor connector. Inspect, clean or repair connector as necessary. Using an external ohmmeter, check resistance between Violet/White and Yellow/White wires at pump/motor male connector. If resistance is not 10-35 ohms, replace pump/motor assembly. Perform TEST VER-1A. If resistance is 10-35 ohms, go to next step.
  2. Ensure ignition is off. Disconnect CAB 37-pin connector. Inspect, clean or repair connector as necessary. Turn ignition on. Put DRB in voltmeter mode. Check voltage on Violet/White wire at pump/motor female connector terminal No. 3. See Figure. If any voltage is present, repair short to battery in Violet/White wire. Perform TEST VER-1A. If no voltage exists, go to next step.
  3. Using DRB, check voltage on Yellow/White wire at pump/motor female connector terminal No. 4. See Figure. If any voltage is present, repair short to battery in Yellow/White wire. Perform TEST VER-1A. If no voltage exists, go to next step.
  4. Turn ignition off. Put DRB in ohmmeter mode. Using DRB, check resistance of Yellow/White wire at pump/motor female connector terminal No. 4. If resistance is less than 5 ohms, repair short to ground in Yellow/White wire. Perform TEST VER-1A. If resistance is more than 5 ohms, go to next step.
  5. Using external ohmmeter, check resistance of Violet/White wire between CAB connector terminal No. 8 and pump/motor female connector terminal No. 3. If resistance is more than 5 ohms, repair open in Violet/White wire. Perform TEST VER-1A. If resistance is less than 5 ohms, go to next step.
  6. Using an external ohmmeter, check resistance of Yellow/White wire between CAB connector terminal No. 21 and pump/motor female connector terminal No. 4. If resistance is more than 5 ohms, repair open in Yellow/White wire. Perform TEST VER-1A. If resistance is less than 5 ohms, replace CAB. Perform TEST VER-1A.