Pinpoint Test B: The Wipers Stay On Continuously
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- B1 CHECK WIPER MOTOR FOR SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Wiper Motor C125.
- Disconnect: Wiper/Washer Module C2157.
- Ignition ON.
- With the wipers in the OFF position, measure the voltage between wiper motor C125-3, circuit CRW15 (BN/WH), harness side and ground; and between wiper motor C125-5, circuit CRW16 (GY/BN), harness side and ground.
- Is the voltage greater than 10 volts?
- Yes : REPAIR the circuit(s) for a short to voltage. TEST the system for normal operation.
- No : GO to B2.
- B2 CHECK THE MULTIFUNCTION SWITCH
- Disconnect: Multifunction Switch C202.
- Carry out the Multifunction Switch component test. Refer to MULTIFUNCTION SWITCH article for hybrid, or MULTIFUNCTION SWITCH article for component testing.
- Did the multifunction switch pass the component test?
- Yes : GO to B3.
- No : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article.
- B3 CHECK FOR A SHORT TO GROUND IN THE MULTIFUNCTION SWITCH HARNESS
- Measure the resistance between ground and wiper/washer module:
- C2157-8, circuit CRW08 (VT/OG), harness side.
- C2157-13, circuit CRW17 (GN/VT), harness side.
- C2157-14, circuit CRW19 (BU/OG), harness side.
- C2157-6, circuit CRW18 (VT/WH), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to B4.
- No : REPAIR the circuit(s) in question. TEST the system for normal operation.
- Measure the resistance between ground and wiper/washer module:
- B4 CHECK FOR CORRECT WIPER/WASHER MODULE OPERATION
- Disconnect all wiper/washer module connectors.
- Check for:
- corrosion.
- pushed-out pins.
- Connect all wiper/washer module 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 wiper/washer module. REFER to WIPER/WASHER MODULE in this service information.
- 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.