Wipers & Washers Ford Explorer Sport Trac I

GENERAL SPECIFICATIONS

Wipers & Washers General Specifications

Scheme 1

The windshield wipers and washer system consist of the following

1. Windshield Wiper Blades
2. Wiper Pivot Arm - Front
3. Wiper Mounting Arm And Pivot Shaft
4. Windshield Wiper Motor
5. Multi-Function Switch
6. Generic Electronic Control Module (GEM)
7. Windshield Washer Reservoir
8. Windshield Washer Pump
9. Windshield Washer Nozzle Jets

The rear window wiper and washer system consist of the following

1. Rear Window Wiper Blade
2. Wiper Pivot Arm - Rear
3. Rear Window Wiper Motor
4. Rear Window Wiper/Washer Switch
5. Generic Electronic Control Module (GEM)
6. Windshield Washer Reservoir (Same As Front)
7. Rear Window Washer Pump (Dual Outlet Single Pump)
8. Rear Window Washer Hose
9. Liftgate Window Washer Hose
10. Rear Window Washer Hose Check Valve (Part Of Liftgate Hose Assembly)
11. Rear Window Washer Nozzle Jet

Wiring Diagrams

For Explorer Sport wiring diagram, see WIPER/WASHER . For Explorer Sport Trac wiring diagram, see WIPER/WASHER .

Scheme 2

Front Wiper Washer

The wiper system has four different operating modes: off mode, low speed mode, high speed mode, and interval mode.

In the off mode, there is no windshield wiper motor activity, and the windshield wiper motor is in the PARK position.

In the low speed mode, the windshield wiper motor is set to a low speed setting. The windshield wiper hi/lo relay is deactivated. The windshield wiper run/park relay is activated when the GEM provides a ground. To de-activate the run/park relay the GEM opens the circuit to the wiper run/park relay.

In the high speed mode, the windshield wiper motor is set to a high speed setting. The windshield wiper run/park and hi/lo relays are activated when the GEM provides a ground. To deactivate the run/park and hi/lo relays the GEM opens the circuit to both relays.

In the interval mode, the windshield wiper motor is set to a low speed setting. The hi/lo relay is deactivated when the GEM opens the circuit to the hi/lo relay. The windshield wiper run/park relay is activated at the beginning of each wipe when the GEM provides a ground and deactivates when the windshield wiper motor park switch reaches the run or off position.

When the multi-function switch is in the interval (INT) position, the windshield wipers will make a single sweep followed by a pause. The control knob on the end of the multi-function switch adjusts the pause from approximately 1-20 seconds. The GEM controls the windshield wiper run/park relay to control the delay time: (ground to activate and open circuit to deactivate)

Vehicles equipped with a generic electronic module (GEM) are available with the speed-dependent interval wiper feature. During the interval mode, the delay between successive wipes will decrease with higher vehicle speed to compensate for increased water on the windshield glass.

Scheme 3

If the washer switch is pressed between 100 ms and 300 ms with the mode switch in the OFF position, the wiper system will provide one low speed wipe with no wash.

When the multi-function switch is in the OFF or INT position, the windshield wipers will run as long as the knob is depressed up to 10 seconds. When the knob is released, the washer will stop immediately, but the windshield wipers will continue to run for two to three sweeps, then return to their previous set operation. Washer engagement does not affect windshield wiper operation when the multi-function switch is in the LOW or HIGH position, but the washer will be deactivated if the knob is held longer than 10 seconds.

Rear Wiper Washer

On early build production vehicles, the generic electronic module (GEM) allows operation of the rear wiper functions when the ignition switch is in the RUN or ACC positions only. When the liftgate or liftgate glass is ajar (ground potential is present at the liftgate and/or liftgate glass ajar switch), the rear wiper is moved to the PARK position (if not in this position) and deactivated. The GEM controls the cycling of the rear wiper motor through two external relays: rear wiper up relay and rear wiper down relay.

On late production vehicles, the generic electronic module (GEM) allows operation of the rear wiper functions when the ignition switch is in the RUN or ACC positions only. The GEM controls the cycling of the rear wiper motor through one external relay.

The GEM controls the cycling of the rear wiper motor through one external relay.

There are four modes of operation: off mode, interval mode, low mode and wash mode.

In the off mode, there is no liftgate wiper motor activity and the liftgate wiper motor will be in the PARK position.

In the interval mode, there are two interval wiper settings to provide the rear wiper dwell times. See INTERVAL WIPER SETTINGS table.

INTERVAL WIPER SETTINGS

When the rear wiper mode/wash switch is placed in one of the intervals in the table, the GEM will activate one rear wipe cycle of the rear wiper motor. Once the wiper cycle has reached the LO position, after the initial wipe, the GEM will start a cyclical timing function with the dwell times specified in the table.

In the low mode, the GEM will provide a ground to the rear wiper relay(s) to cycle the rear motor continuously at a low speed setting.

In the wash mode, when the rear wiper wash switch is pressed and held for a time greater than 100 ms, the GEM will cycle the rear wiper motor three times.

Note. The GEM does not control the rear washer, only the wiper.

In the mist mode, the washer switch is pressed between 100 ms and 300 ms with the mode switch in the OFF position. The wiper system will provide one low speed wipe with no wash.

Scheme 4

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage. (Scheme 4)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool dose not communicate with the vehicle: Check the connection to the vehicle. Check that the program card is correctly installed. Check the ignition switch position.
5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
6. Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(/ford/explorer-sport-trac/i-2000-2005/remont/communication-devices/#module-communications-network) article. NO RESP/NOT EQUIP for generic electronic module (GEM), refer to «MULTIFUNCTION ELECTRONIC CONTROL MODULES»(/ford/explorer-sport-trac/i-2000-2005/remont/communication-devices/#multifunction-electronic-control-modules) article. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostic for the GEM; if the concern is with the front system. If the concern is with the rear wiper/washer system, carry out the GEM rear wiper/washer test.
7. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index. See «GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) table.
8. If no DTCs related to the concern are retrieved, proceed to Symptom Chart. See «SYMPTOM CHART»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers__symptom-chart).
9. If the DTCs retrieved are not found in the following GEM Diagnostic Trouble Code (DTC) Index, refer to the master GEM Diagnostic Trouble Code (DTC) Index in «MULTIFUNCTION ELECTRONIC CONTROL MODULES»(/ford/explorer-sport-trac/i-2000-2005/remont/communication-devices/#multifunction-electronic-control-modules) article.

GEM Diagnostic Trouble Code (DTC) Index

GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX

Symptom Chart

SYMPTOM CHART

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Scheme 106

Windshield Wiper Motor

Use Alternator, Regulator, Battery and Starter Tester (ARBST) to test the wiper motor on the vehicle.

Scheme 107

To test the wiper motor, disconnect the windshield wiper mounting arm and pivot shaft from the windshield wiper motor. See WIPER PIVOT ARM - FRONT or WIPER PIVOT ARM - REAR .

Disconnect the wiper motor. Connect the (1) green lead from (2) Alternator, Regulator, Battery and Starter Tester (ARBST) to the battery negative (-) post. Connect the (3) red lead from ARBST to the wiper motor (4) common brush terminal (terminal 3).

Test the low speed mode by connecting a (5) cable from the battery positive (+) post to the (6) low speed brush terminal (terminal 4) and measure the current draw. If the current draw is greater than 3.5 amperes, install a new windshield wiper motor.

Test the high speed mode by connecting a cable from the battery positive (+) post to the (7) high speed brush terminal (terminal 5) and measure the current draw. If the current draw is greater than 5.5 amperes, install a new wiper motor.

Scheme 108

Scheme 109

1. Cycle and park the windshield wipers.
2. Verify the distance between the center of the passenger windshield wiper blade and the rear edge of the cowl top vent panel is within specifications.
3. Verify the distance between the center of the driver windshield wiper blade and the rear edge of the cowl top vent panel is within specifications.
4. If the distance is not within specifications, remove the windshield wiper pivot arms and reposition to specification. For additional information. See «WIPER PIVOT ARM - FRONT»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) .

Removal & Installation

1. Remove the wiper pivot arm. Pull up on the wiper pivot arm. Pull out on the retainer tab and lower the wiper pivot arm to the tab. Remove the wiper pivot arm.
2. To install, reverse the removal procedure.

Removal

1. Disconnect the rear washer hose.
2. Remove rear wiper pivot arm. Lift the wiper pivot arm nut cover at the point shown. Remove the nut. NOTE: The wiper pivot arm must be lifted straight up from the shaft to avoid damage to the wiper pivot arm or shaft. Remove the wiper pivot arm.

Scheme 110

1. Turn the rear wiper switch on and allow the motor to operate for at least one cycle.
2. Turn the rear wiper switch OFF.
3. On early build vehicles, position the rear wiper blade outside the wiper arm stop.
4. Install the wiper pivot arm onto the wiper motor. Tighten retaining nut.
5. Connect the washer hose to the elbow with elbow positioned between the 9:00 and 12:00 o'clock positions.

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1. Remove the cowl grilles.
2. Unsnap the wiper motor clip from the RH wiper mounting arm and pivot shaft.
3. Disconnect the RH wiper mounting arm and pivot shaft from the LH wiper mounting arm and pivot shaft and move both away from the windshield wiper motor.
4. Remove the RH and LH wiper mounting arm and pivot shafts. Remove the two nuts. Remove the wiper mounting arm and pivot shafts.

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1. Install the RH and LH wiper mounting arms and pivot shafts. Position the wiper mounting arm and pivot shafts into place. Install the two nuts.
2. If removed, install the clip onto the RH wiper mounting arm and pivot shaft.
3. Install the wiper mounting arm and pivot shaft assemblies. Install the LH wiper mounting arm and pivot shaft onto the windshield wiper motor crank pin. Install the RH wiper mounting arm and pivot shaft onto the wiper motor crank pin. Push the retaining clip until it snaps into place.
4. Install the cowl grilles.
5. Adjust the LH and RH wiper pivot arms. Refer to Windshield Wiper Blade and Pivot Arm Adjustment. See «WINDSHIELD WIPER BLADE & PIVOT ARM ADJUSTMENT»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) .

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1. Disconnect the washer hose from the LH washer jet nozzle.
2. Remove the cowl grilles.
3. Unsnap the wiper motor clip from the RH wiper mounting arm and pivot shaft.
4. Disconnect the RH wiper mounting arm and pivot shaft from the LH wiper mounting arm and pivot shaft and move both away from the windshield wiper motor.
5. Disconnect the electrical connector.
6. Remove the ground strap nut and position the strap aside.
7. Remove the windshield wiper motor. Remove the stud bolts. Remove the bolts.

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1. Install the windshield wiper motor. Install the windshield wiper motor. Install the stud bolts. Install the bolts.
2. Install the ground strap and nut.
3. Connect the electrical connector.
4. Install the wiper mounting arm and pivot shaft arms to the windshield wiper motor. Install the LH wiper mounting arm and pivot shaft onto the windshield wiper motor crank pin. Install the RH wiper mounting arm and pivot shaft onto the wiper motor crank pin. Push the retaining clip until it snaps into place.
5. Install the cowl grilles.
6. Connect the washer hose to the LH washer jet nozzle.
7. Install the LH wiper pivot arm. See «WIPER PIVOT ARM - FRONT»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) .
8. Adjust the LH wiper pivot arm. See «WINDSHIELD WIPER BLADE & PIVOT ARM ADJUSTMENT»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) .

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Scheme 127

1. Remove the instrument panel finish panel. Remove the screws. Remove the center instrument panel finish panel. Disconnect the electrical connectors.
2. Remove the rear wiper/washer switch. Remove the screws. Remove the mounting bezel. Release the two tabs and remove the rear wiper/washer switch.
3. To install, reverse the removal procedure.

Scheme 128

1. Remove the rear wiper pivot arm. See «WIPER PIVOT ARM - REAR»(/ford/explorer-sport-trac/i-2000-2005/remont/wiperwasher-systems/#wipers-washers) .
2. Remove the liftgate door trim panel.
3. Remove the watershield.
4. Remove rear wiper motor. Disconnect electrical connector. Remove three retaining bolts. Remove rear wiper motor.
5. To install, reverse the removal procedure.

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Scheme 130

1. Remove the engine air cleaner.
2. Remove the windshield wiper reservoir fasteners. Remove the two screws. Remove the two nuts.
3. Disconnect the windshield washer reservoir pump electrical connector.
4. Disconnect the windshield washer hose from the windshield washer pump and plug the outlet of the pump.
5. Disconnect the coolant overflow hose from the engine coolant overflow reservoir and plug the outlet of the reservoir.
6. Remove the windshield washer pump.
7. To install, reverse the removal procedure.

See also:
• MODULE COMMUNICATIONS NETWORK
• MULTIFUNCTION ELECTRONIC CONTROL MODULES
• INTERVAL WIPER SETTINGS
• SYMPTOM CHART