Wiper System & Washer System: Other Ford Escape I

Front

The windshield wipers and washer system consists of the following

1. windshield wiper blade
2. windshield wiper pivot arm
3. windshield wiper mounting arm and pivot shaft. See «Windshield Wiper Motor»(ref-178236-S24468363022005061300000) .
4. windshield wiper motor
5. windshield wiper/washer switch
6. generic electronic control module (GEM)
7. windshield washer reservoir
8. windshield washer pump
9. windshield washer nozzle jet

Rear

The rear window wiper and washer system consists of the following

1. rear window wiper blade
2. rear window wiper arm
3. rear window wiper motor
4. rear window wiper/washer switch
5. generic electronic control module (GEM)
6. windshield washer reservoir
7. rear window washer pump
8. rear window washer hose
9. rear window washer hose check valve
10. rear window washer nozzle jet

Scheme 45

Rear Window Wiper Washer

The generic electronic module (GEM) allows operation of the rear window wiper functions when the ignition switch is in the RUN or ACC position only. The GEM controls the cycling of the rear window wiper motor through a single relay (rear window wiper relay).

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

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

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

When the wiper/washer switch is placed in the interval position, the GEM will activate the rear window wipe cycle of the rear window wiper motor. Once the wiper cycle has reached the LO position, after the initial wipe, the GEM will start a cyclical timing function.

In the ON mode, the GEM will cycle the rear window motor continuously at a set-speed setting. The GEM provides a ground to activate the rear window wiper relay.

The wash mode can only be activated when the rear wiper switch is in the OFF or ON positions. When the rear wiper switch is in the OFF position and wash mode is activated the rear window wiper will not cycle.

Fluid for the rear window washer is supplied by a washer pump located in the rear passenger compartment.

Scheme 46

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If an obvious cause for an observed of reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the diagnostic tool does not power up, refer to manual that came with diagnostic tool.
5. Carry out the «DATA LINK DIAGNOSTICS»(ref-177213-S11953477042005052500000) test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(ref-177213) . NO RESP/NOT EQUIP for GEM, refer to «MODULE COMMUNICATIONS NETWORK»(ref-177213) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the GEM.
6. If the DTCs retrieved are related to the concern, go to the «GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX»(ref-178236-S41795880712006053100000) to continue diagnostics.
7. If no DTCs related to the concern are retrieved, proceed to the «SYMPTOM CHART»(ref-178236-S29136770182005061300000) to continue diagnostics.

Windshield Wiper Motor

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

Scheme 47

To test the wiper motor, disconnect the windshield wiper mounting arm and pivot shaft from the windshield wiper motor; refer to 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 48

1. Cycle and park the windshield wipers
2. Verify that the RH and LH wiper blades are located at the specified position.
3. If not within specification, remove the windshield wiper pivot arms and reposition to the correct locations; refer to «Wiper Pivot Arm - Front»(ref-178236-S16306135612005061300000) .

Scheme 49

1. Cycle and park the rear window wiper.
2. Verify that the rear window wiper blade is located at the specified position.
3. If not within specification, remove the rear window wiper pivot arm and reposition to the correct location; refer to «Wiper Pivot Arm - Rear»(ref-178236-S08259861912005061300000) .

Washer Hose Repair

1. Locate and verify the leaking washer hose.
2. Cut the hose cleanly and remove the damaged portion of the washer hose.
3. Install a windshield washer hose adapter between the cut ends of the hose.
4. Install a segment of 6.4 mm (0.25 in) i.d. black rubber hose over the ends of the washer hose, and clamp both ends of the rubber hose using spring clamps.

Scheme 50

Scheme 51

1. Remove the pivot arm nut.
2. Remove the windshield wiper pivot arm.
3. To install, reverse the removal procedure. Adjust the windshield wiper pivot arms. For additional information, refer to «Windshield Wiper Blade and Pivot Arm Adjustment»(ref-178236-S42855692752005061300000) .

Scheme 52

1. Remove the pivot arm. Lift pivot arm to the upright position. Slide the locking tab out. Pull up and remove the pivot arm.
2. To install, reverse the removal procedure. Adjust the windshield wiper pivot arm. For additional information, refer to «Rear Window Wiper Blade and Pivot Arm Adjustment»(ref-178236-S15573485252005061300000) .