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

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

X1 CHECK THE MULTIFUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multifunction Switch C202a.
- Carry out the multifunction switch component test.
  Refer to COMPONENT TESTING for schematic and connector information.
- Did the multifunction switch pass the component test?
Yes

GO to X2.

No

INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES .
X2 CHECK CIRCUIT 1302 (WH/LG) FOR OPEN
- Measure the resistance between C202a-4, circuit 1302 (WH/LG), harness side and ground.
  
  Fig 1: Measuring Resistance Between C202A-4 And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes

GO to X3.

No

REPAIR the circuit. TEST the system for normal operation.
X3 CHECK CIRCUIT 410 (WH/OG) FOR OPEN
- Key in OFF position.
- Disconnect: Rear Window Wiper Motor C4171.
- Measure the resistance between C202a-8, circuit 410 (WH/OG), harness side and C4171-4, circuit 410 (WH/OG), harness side.
  
  Fig 2: Measuring Resistance Between C202A-8 And C4171-4
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes

Go To PINPOINT TEST Y .

No

REPAIR the circuit. TEST the system for normal operation.