Pinpoint Test E: The Washer Pump Is Inoperative - Continuously On
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- E1 CHECK THE MULTI-FUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multi-function Switch C202.
- Carry out the multi-function switch component test. Refer to COMPONENT TESTING .
- Did the multi-function switch pass the component test?
Yes : GO to E2.
No : INSTALL a new multi-function switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
- E2 CHECK CIRCUIT CRW07 (GY/BN) FOR A SHORT TO GROUND
- Measure the resistance between multi-function switch C202-10, circuit CRW07 (GY/BN), harness side and ground.
- Is the resistance greater than 10,000 ohms?
Yes : GO to E3.
No : REPAIR the circuit. TEST the system for normal operation.
- E3 CHECK CIRCUIT CRW14 (BU/WH) FOR A SHORT TO VOLTAGE
- Disconnect: Smart Junction Box (SJB) C2280a.
- Disconnect: Washer Pump C137.
- Key in ON position.
- Measure the voltage between washer pump motor C137-1, circuit CRW14 (BU/WH), harness side and ground.
- Is the voltage greater than 10 volts?
Yes : REPAIR the circuit. TEST the system for normal operation.
No : GO to E4.
- E4 CHECK FOR CORRECT SJB OPERATION
- Key in OFF position.
- Disconnect all the SJB connectors.
- Check for:
- Corrosion.
- Pushed-out pins.
- Connect all the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . TEST the system for normal operation.
No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.