Wipers and Washers
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Refer to Wiring Diagrams Cell 81, Interval Wiper/Washer for schematic and connector information.
Principles of Operation
The front wipers and washer are controlled by the front electronic module (FEM). The front washer/wiper portion of the multifunction switch is hardwired to the FEM. When the switch is
moved to the desired position, the FEM processes this information and outputs the appropriate command(s) to one of several hardwired relays which control the front wiper motor speeds or
front washer pump actuation. Fault management of the front wiper provides limited front wiper functionality in the event of a failure of the front wiper/washer switch or an ignition switch
failure transmitted by the instrument cluster module.
The front washer pump is hardwired to the FEM which will actuate the pump when the front wiper/washer portion of the multifunction switch is moved to the wash position.
The rear wiper and washer are controlled by the FEM. The rear wiper/washer portion of the multifunction switch is hardwired to the FEM. When the switch is moved to the desired position,
the FEM processes this information and outputs the appropriate command(s) to a hardwired relay which controls the rear wiper motor speeds, and rear washer pump actuation.
Inspection and Verification
1. Verify the customer concern by operating the wiper and washer.
2. Visually inspect for obvious signs of mechanical and electrical damage.
Visual Inspection Chart
3. If the diagnostic tool does not power up, refer to the diagnostic tool manual.
4. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
SCP or ISO; all electronic control units, no response/not equipped, refer to Section 418-00.
No response/not equipped for FEM, GO to Pinpoint Test A.
System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the FEM.
5. If the DTCs retrieved are related to the concern, go to Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index to continue diagnostics.
6. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
Front Electronic Module (FEM) Diagnostic Trouble Code (DTC) Index
SECTION 501-16: Wipers and Washers 2003 Windstar Workshop Manual
DIAGNOSIS AND TESTING
Procedure revision date: 07/06/2005
Special Tool(s)
73III Automotive Meter
105-R0057 or equivalent
Alternator, Regulator, Battery and Starter Tester (ARBST)
010-00725 or equivalent
Worldwide Diagnostic System (WDS)
418-F224,
New Generation STAR (NGS) Tester
418-F052, or equivalent diagnostic tool with appropriate adapter cable
Mechanical Electrical
Windshield wiper blade
Wiper arm and pivot shaft
Rear wiper motor
Windshield washer reservoir
Washer hoses
Battery junction box (BJB) fuse(s):
2 (10A)
6 (30A)
7 (25A)
Windshield wiper motor
Rear wiper motor
Windshield washer pump
Rear washer pump
Connectors
Multifunction switch
Rear wiper/washer switch
DTC Description Source Action
B1241 Wiper Washer Rear Pump Relay Circuit Short to Battery FEM GO to Pinpoint Test E.
B1244 Wiper Rear Motor Run Relay Circuit Failure FEM GO to Pinpoint Test B.
B1245 Wiper Rear Motor Run Relay Circuit Short to Battery FEM GO to Pinpoint Test B.
B1431 Wiper Brake/Run Relay Circuit Failure FEM GO to Pinpoint Test A.
B1432 Wiper Brake/Run Relay Circuit Short to Battery FEM GO to Pinpoint Test A.
Page 1 of 172003 Windstar Workshop Manual
8/17/2010http://www.fordtechservice.dealerconnection.com/pubs/con...
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