Pinpoint Test J: The Rear Wiper Wash And Wipe Function Does Not Operate

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

J1 CHECK THE STEERING COLUMN MULTIFUNCTION SWITCH
- Key in OFF position.
- Disconnect: Steering Column Multifunction Switch C202a.
- Carry out the steering column multifunction switch component test. Refer to COMPONENT TESTING article.
- Did the steering column multifunction switch pass the component test
- Yes : GO to J2.
- No : INSTALL a new steering column multifunction switch. REFER to STEERING COLUMN SWITCHES .
J2 CHECK CIRCUIT 1302 (WH/LG) FOR AN OPEN
- Measure the resistance between steering column multifunction switch C202a-4, circuit 1302 (WH/LG), harness side and ground.
  
  Fig 1: Checking Circuit 1302 (WH/LG) For An Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to J3.
- No : REPAIR the circuit. TEST the system for normal operation.
J3 CHECK CIRCUIT 410 (WH/OG) FOR AN OPEN
- Key in OFF position.
- Disconnect: Rear Window Wiper Motor C4171.
- Measure the resistance between steering column multifunction switch C202a-8, circuit 410 (WH/OG), harness side and rear window wiper motor C4171-4, circuit 410 (WH/OG), harness side.
  
  Fig 2: Measuring Resistance Between Steering Column Multifunction Switch C202a-8 And Rear Window Wiper Motor C4171-4
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to PINPOINT TEST K .
- No : REPAIR the circuit. TEST the system for normal operation.