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Home >> Dodge and Ram >> 2001 >> Durango 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> System Tests >> Windshield Wiper System >> Rear Wiper Inoperative
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Rear Wiper Inoperative

  1. Turn ignition off. Remove rear wiper relay from power distribution center, located in left side of engine compartment, near battery. See Figure . Substitute rear wiper relay with a known-good relay. Turn ignition on. Operate rear wiper system. If rear wiper system works properly, replace rear wiper relay. If rear wiper system does not operate properly, go to next step.
  2. Remove rear wiper relay. Using test light connected to ground, probe rear wiper relay cavities No. 86 and 87 (Orange/Black wires). If test light illuminates on both circuits, go to next step. If test light does not illuminate on both circuits, check fuse "J" (20-amp) located in power distribution center. If fuse "J" is okay, check for open in appropriate Orange/Black wire between rear wiper relay and power distribution center. See POWER DISTRIBUTION article in WIRING DIAGRAMS. If fuse is blown, check for short to ground in appropriate Orange/Black wire between rear wiper relay and power distribution center. Repair as necessary.
  3. Disconnect Central Timer Module (CTM) connectors. CTM is located behind left side kick panel. Using DVOM, measure resistance of Pink/Yellow wire between rear wiper relay cavity No. 85 and Gray 12-pin CTM connector C3 terminal No. 9. See Figure . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Pink/Yellow wire between rear wiper relay cavity No. 85 and Gray 12-pin CTM connector C3 terminal No. 9.
  4. Connect scan tool to Data Link Connector (DLC), under lower left side of instrument panel. Turn ignition on. Set rear wiper switch to OFF position. Using scan tool, select WIPER SYSTEM MONITORS, then REAR WIPER. Observe scan tool display while activating rear wiper. If scan tool displays REAR WIPER status as OFF then ON, go to next step. If scan tool does not display REAR WIPER status as OFF then ON, replace HVAC controller. See HEATING VENTILATION AIR CONDITIONING CONTROLLER  under REMOVAL & INSTALLATION.
  5. Turn ignition off. Remove rear wiper relay. Turn ignition on. Using test light connected to battery voltage, probe rear wiper relay cavity No. 85 (Pink/Yellow wire). Operate rear wiper system. If test light illuminates, go to next step. If test light does not illuminate, go to step  12 .
  6. Turn ignition off. Disconnect Black 4-pin rear wiper motor connector. Using DVOM, measure resistance of Brown/Pink wire between rear wiper relay cavity No. 30 and Black 4-pin rear wiper motor connector terminal No. 2. See Figure . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Brown/Pink wire between rear wiper relay cavity No. 30 and Black 4-pin rear wiper motor connector terminal No. 2.
  7. Using test light connected to battery voltage, probe Black 4-pin rear wiper motor connector terminal No. 1 (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between Black 4-pin rear wiper motor connector terminal No. 1 and ground. See GROUND DISTRIBUTION article in WIRING DIAGRAMS.
  8. Using DVOM, measure resistance of Brown/Light Green wire between Black 4-pin rear wiper motor connector terminal No. 3 and Gray 16-pin CTM connector C2 terminal No. 12. See Figure . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Brown/Light Green wire between Black 4-pin rear wiper motor connector terminal No. 3 and Gray 16-pin CTM connector C2 terminal No. 12.
  9. Turn ignition on. Using DVOM connected to ground, measure voltage at Gray 16-pin CTM connector C2 terminal No. 12 (Brown/Light Green wire). If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Brown/Light Green wire between Gray 16-pin CTM connector C2 terminal No. 12 and Black 4-pin rear wiper motor connector terminal No. 3.
  10. Turn ignition off. Set rear wiper switch to intermittent position. Using DVOM, measure resistance between rear wiper motor terminals No. 1 (Black wire) and No. 3 (Brown/Light Green wire). If resistance is more than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step  12 .
  11. Replace rear wiper motor. See appropriate WIPER/WASHER SYSTEMS article.
  12. Replace CTM. See CENTRAL TIMER MODULE  under REMOVAL & INSTALLATION.
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