Pinpoint Test A: The Wipers Are Inoperative

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

A1 CHECK CIRCUITS 65 (DG) AND 1002 (BK/PK) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Windshield Wiper Motor C125.
- Key in ON position.
- Measure the voltage between windshield wiper C125-5, circuit 65 (DG), harness side and ground; and between windshield wiper motor C125-8, circuit 1002 (BK/PK), harness side and ground.
  
  Fig 1: Checking Circuits 65 (DG) And 1002 (BK/PK) For Voltage
  Courtesy of FORD MOTOR CO.
- Are the voltages greater than 10 volts?
Yes : Go to A2.

No : VERIFY central junction box (CJB) fuse 33 (15A) and battery junction box (BJB) fuse 1 (30A) are OK. If OK, REPAIR the circuit(s) in question. TEST the system for normal operation.
A2 CHECK CIRCUITS 57 (BK) AND 676 (PK/OG) FOR OPENS
- Key in OFF position.
- Measure the resistance between windshield wiper C125-6, circuit 57 (BK), harness side and ground; and between windshield wiper motor C125-3, circuit 676 (PK/OG), harness side and ground.
  
  Fig 2: Checking Circuits 57 (BK) And 676 (PK/OG) For Opens
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
Yes : Go to A3.

No : REPAIR the circuit(s) in question. TEST the system for normal operation.
A3 CHECK THE MULTI-FUNCTION SWITCH
- Disconnect: Multi-function Switch C202b.
- Carry out the multi-function switch component test.
- Did the multi-function switch pass the component test?
Yes : Go to A4.

No : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES .
A4 CHECK CIRCUIT 57 (BK) FOR AN OPEN
- Measure the resistance between C202b-6, circuit 57 (BK), harness side and ground.
  
  Fig 3: Checking Circuit 57 (BK) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : Go to A5.

No : REPAIR the circuit. TEST the system for normal operation.

A5 CHECK CIRCUITS 56 (DB/OG), 58 (WH), 61 (YE/RD) AND 63 (RD) FOR OPENS

Using the following table, measure the resistance between multi-function switch C202b harness side and windshield wiper motor C125 harness side:

WINDSHIELD WIPER MOTOR CHART

Multi-function Switch C202b	Windshield Wiper Motor C125
Pin 2, circuit 56 (DB/OG)	Pin 10, circuit 56 (DB/OG)
Pin 3, circuit 58 (WH)	Pin 11, circuit 58 (WH)
Pin 4, circuit 61 (YE/RD)	Pin 1, circuit 61 (YE/RD)
Pin 1, circuit 63 (RD)	Pin 9, circuit 63 (RD)

Fig 4: Checking Circuits 56 (DB/OG), 58 (WH), 61 (YE/RD) And 63 (RD) For Opens

Courtesy of FORD MOTOR CO.

Is the resistance less than 5 ohms?

Yes : Go to A6.

No : REPAIR the circuit(s) in question. TEST the system for normal operation.

A6 CHECK FOR CORRECT WIPER MOTOR OPERATION

Disconnect all wiper motor connectors.
Check for:
- corrosion.
- pushed-out pins.
Connect all wiper motor connectors and make sure they seat correctly.
Operate the system and verify the concern is still present.
Is the concern still present?

Yes : INSTALL a new windshield wiper motor. REFER to WIPER MOTOR in this section.

No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.