LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1997 >> Probe Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Wiper/Washer Systems) >> System Testing >> Test B: Wipers Inoperative
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test B: Wipers Inoperative

WARNING: This page is about a different car, the 1997 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect wiper motor connector. Turn ignition on. Set wiper switch to high speed. Check for battery voltage at Dark Green wire at harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, check for open wiring, defective fuse No. 10 (30-amp) in instrument panel fuse panel or defective switch. See WIPER SWITCH CONTINUITY TEST  .
  2. Disconnect Wiper Control Module (WCM) connector. Check for battery voltage at Dark Green wire at WCM harness connector. WCM is located behind instrument panel between steering column and radio. If battery voltage exists, reconnect WCM harness connector and go to next step. If battery voltage does not exist, repair open Dark Green wire to WCM.
  3. Turn ignition on. Set wiper switch to high speed. Check for battery voltage between Yellow/Red and White wires at wiper motor harness connector. If battery voltage exists, replace wiper motor. If battery voltage does not exist, go to next step.
  4. Set wiper switch for high speed operation. Check Yellow/Red wire for battery voltage at WCM connector. If battery voltage does not exist, go to next step. If battery voltage exists, repair open Yellow/Red wire between WCM and wiper motor and retest system.
  5. Set wiper switch for high speed operation. Check White wire for battery voltage at WCM connector. If battery voltage does not exist, go to next step. If battery voltage exists, repair open White wire between WCM and wiper motor and retest system.
  6. Disconnect WCM harness connector. Set wiper switch to high speed. Measure resistance between Brown/White and Orange wires at harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace WCM and retest system.
  7. Disconnect multifunction switch 7-pin connector. Measure resistance of Brown/White wire between multifunction switch 7-pin connector and ground. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair open in Brown/White wire and retest system.
  8. Ensure multifunction switch 7-pin connector is disconnected. Measure resistance of Orange wire between multifunction switch 7-pin connector and ground. If resistance is greater than 5 ohms, replace multifunction switch. If resistance is 5 ohms or less, repair open in Orange wire. After repair, retest system.
scientia non olet · About LEMON Manuals