Pinpoint Test B: The Wipers Stay On Continuously

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

B1 CHECK THE MULTI-FUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multi-Function Switch C202a
- Carry out the multi-function switch component test. Refer to COMPONENT TESTING.
- Did the multi-function switch pass the component test?
1. YES : Go to B2.
2. NO : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES article.

B2 CHECK CIRCUITS 680 (LB/OG), 1300 (PK), 485 (PK/BK) AND 1301 (YE) FOR SHORTS

Disconnect: Windshield Wiper Motor C125

Fig 1: Checking Circuits 680 (LB/OG), 1300 (PK), 485 (PK/BK) And 1301 (YE) For Shorts

Courtesy of FORD MOTOR CO.

Using the following table, measure the resistance between windshield wiper motor C125 harness side and ground:

Windshield Wiper Motor C125	Ground
C125-10, circuit 680 (LB/OG)	ground
C125-11, circuit 1300 (PK)	ground
C125-1, circuit 485 (PK/BK)	ground
C125-9, circuit 1301 (YE)	ground

Are the resistances greater than 10,000 ohms?

YES : Go to B3.
NO : REPAIR the circuit(s) in question. TEST the system for normal operation.

B3 CHECK FOR CORRECT WIPER MOTOR OPERATION
- Disconnect the wiper motor connector.
- Check for:
  - corrosion.
  - pushed-out pins.
- Connect the wiper motor connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
1. YES : INSTALL a new windshield wiper motor. REFER to Wiper Motor in this article.
2. 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.