Wipers and Washers
Refer to Wiring Diagrams Cell
81
, Interval Wiper/Washer for schematic and connector information.
Refer to Wiring Diagrams Cell
82
, Liftgate 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 scan tool does not power up, refer to the scan tool manual.
4. Carry out the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with:
CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to
Section 418-00
.
NO RESP/NOT EQUIP 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 FEM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
6. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics.
FEM Diagnostic Trouble Code (DTC) Index
Diagnostic Trouble Code (DTC) Index
SECTION 501-16: Wipers and Washers
2000 Windstar Workshop Manual
DIAGNOSIS AND TESTING
Procedure revision date: 12/16/2003
Special Tool(s)
73 Digital Multimeter
105-R0051 or equivalent
Worldwide Diagnostic System (WDS)
418-F224,
New Generation STAR (NGS) Tester
418-F052, or equivalent scan tool
Mechanical
Electrical
Windshield wiper blade
Binding wiper arm and pivot shaft
Rear wiper motor
Empty windshield washer reservoir
Kinked or broken washer hoses
Battery junction box (BJB):
Fuse 2 (10A)
Fuse 23 (15A)
Fuse 5 (30A)
Fuse 8 (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 F
.
B1243 Express Window Down Switch Circuit Short to Battery
FEM
REFER to
Section 501-11
.
B1244 Wiper Rear Motor Run Relay Circuit Failure
FEM
GO to
Pinpoint Test C
.
B1245 Wiper Rear Motor Run Relay Circuit Short to Battery
FEM
GO to
Pinpoint Test C
.
B1254 Air Temperature External Sensor Circuit Failure
FEM
REFER to
Section 413-08
.
B1294 Battery Power Relay Circuit Short to Battery
FEM
REFER to
Section 417-01
,
Section 417-02
or
Section 501-14B
.
B1304 Accessory Delay Relay Coil Circuit Short to Battery
FEM
REFER to
Section 501-11
.
B1308 Oil Level Switch Circuit Short to Ground
FEM
REFER to
Section 413-01
.
Page 1 of 30
2000 Windstar Workshop Manual
4/1/2010
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