Wiper System & Washer System: Other Ford Flex I

Wipers and Washers

The wiper and washer system consists of the following components

1. Wiper blades
2. Wiper pivot arms - front
3. Wiper pivot arm - rear
4. Front wiper relay
5. Rear wiper relay
6. Wiper mounting arm and pivot shaft
7. Windshield wiper motor/module
8. Rear window wiper motor/module
9. Windshield washer pump
10. Windshield washer reservoir
11. Multifunction switch
12. NOTE: The Smart Junction Box (SJB) may also be identified as the Generic Electronic Module (GEM). SJB
13. Washer fluid hoses
14. Washer fluid nozzles

The wiper system is activated by the multifunction switch. The multifunction switch provides input to the front wiper motor module to activate wash, low, high and intermittent modes. The multifunction switch also provides input to the rear wiper module to activate wash, INT 1 and INT 2 modes. The wiper motor contains relays that are not serviceable separately.

The front and rear washer system share the same washer reservoir and washer pump. When the multifunction switch is placed into the wash mode, the windshield wiper motor and rear wiper motor integral electronics control the direction of the washer pump to direct washer fluid to the windshield or rear window.

The washer fluid hose for the rear washer fluid nozzle is routed along the roof and is accessible by lowering the headliner.

If equipped with automatic headlamps, the SJB will illuminate the exterior lamps, including the parking lamps within 10 seconds, when the front wipers are on and the headlamp control switch is in the AUTOLAMP position. When the wipers are turned off, the exterior lamps will remain on for 30 seconds before turning off.

The Instrument Cluster (IC) uses a washer fluid level switch to monitor the level of the washer fluid in the washer fluid reservoir. For information on the washer fluid level system, Refer to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .

Windshield Wipers and Washers

Note. The Smart Junction Box (SJB) may also be identified as the Generic Electronic Module (GEM).

The windshield wiper system consists of a front wiper relay and an integrated wiper motor and module assembly, which contains internal washer, run/park and high/low speed relays. The windshield wiper motor and module assembly also contains a Hall-effect sensor that is used to determine the parked position of the wiper motor during a cycle. The integrated windshield wiper motor and module assembly has 5 different operating modes: OFF, LOW speed, HIGH speed, INTERMITTENT and SOFTWARE SAFE mode.

High-Speed Windshield Wipers

When the multifunction switch is set to the HIGH speed position, it supplies ground to the high/low speed relay coil and the run/park relay coil, which causes the windshield wiper motor to operate at high speed. During high-speed operation only, both the high/low-speed relay coil ground and the run/park relay coil ground are controlled directly by the multifunction switch. This differs from LOW speed or intermittent operation when the run/park relay coil is controlled by the microprocessor. When the switch is placed in the OFF position, the motor continues to operate until the motor returns to the PARK position and the internal Hall-effect sensor senses the motor magnet. The output to the run/park relay deactivates the relay and disconnects the voltage to the motor.

Low-Speed Windshield Wipers

When the multifunction switch is set to the LOW speed position, it supplies ground to the internal windshield wiper motor module low-speed inputs and the windshield wiper motor operates at low speed. During low-speed operation, the internal run/park relay is activated by the microprocessor and supplies 12 volts to the low-speed brush of the windshield wiper motor. The run/park relay coil ground is controlled by the internal windshield wiper motor module based on inputs received from the multifunction switch. When the switch is placed in the OFF position, the motor continues to operate until the motor returns to the PARK position and the internal Hall-effect sensor senses the motor magnet. The output to the run/park relay deactivates the relay and disconnects the voltage to the motor.

Intermittent Windshield Wipers

When the multifunction switch is set to the intermittent position(s), it supplies ground to the windshield wiper motor module inputs and the windshield wiper motor operates in intermittent mode. During intermittent operation, the windshield wiper motor activates the run/park relay coil which sends voltage through the high/low relay. The high/low relay remains deactivated, supplying the voltage to the low-speed brush of the windshield wiper motor. The windshield motor continues to operate until the internal Hall-effect sensor senses the magnet (PARK position) and deactivates the run/park relay, which disconnects voltage from the wiper motor. The windshield wipers remain parked until the windshield wiper motor module completes a time-out and then repeats the intermittent windshield wiper cycle.

Wiper Activated Headlamps (If Equipped with Autolamp System)

The SJB sends a voltage signal to the wiper motor module in order to monitor the status of the wipers. When the headlamp control switch is in the AUTOLAMP position and the wipers are on, the SJB will activate the headlamps within 10 seconds. When the SJB detects that the wipers have been turned off, the SJB will turn off the headlamps after 30 seconds.

Rear Window Wiper

The rear window wiper system consists of a rear wiper relay and an integrated wiper motor and module assembly, which contains internal washer and wiper relays.

When the multifunction switch is set to the rear wiper intermittent position(s), it supplies ground to the rear window wiper motor module inputs and the wiper motor operates in intermittent mode. During intermittent operation, the rear wiper motor momentarily activates the rear window wiper relay (internal) which sends voltage to the motor. Once the rear window wiper motor is activated, the internal run/park switch connects voltage to the motor, keeping it operating. When the rear window wiper motor returns to the PARK position, the run/park switch disconnects voltage internally from the wiper motor input, reconnecting it to the rear window wiper motor module output. The rear window wiper remains parked until the rear window wiper motor module completes a time-out and then repeats the cycle.

Windshield and Rear Window Washer

The front and rear washer system use the same washer reservoir and washer pump. The front and rear wiper motor modules each contain an integral washer relay. When the windshield and rear window washer relays are inactive, the washer relays supply a path to ground to the washer motor.

When the windshield wiper motor module receives a windshield wash signal from the multifunction switch, the windshield wiper motor module activates its integral windshield washer relay which sends voltage to the washer pump. The washer pump receives ground from the inactive rear window washer relay in the rear wiper motor module.

When the rear wiper motor module receives a rear window wash signal from the multifunction switch, the rear wiper motor module activates its integral rear window washer relay which sends voltage to the washer pump. The washer pump receives ground from the inactive windshield washer relay in the windshield wiper motor module.

Software Safe Mode

The windshield wiper motor defaults to software safe mode when the run/park sensor does not sense the Hall-effect magnet inside the wiper motor. This can be caused by an obstruction of the windshield wipers, a binding linkage or loss of the Hall-effect sensor signal. The motor continues to operate in a high/low-speed condition, and when turned off, the wipers immediately park on the windshield. If necessary, the wipers can be turned on and off until they return to the PARK position.

Windshield Wiper Circuit Function Table

WINDSHIELD WIPER CIRCUIT FUNCTION CHART

Rear Wiper Circuit Function Table

REAR WIPER CIRCUIT FUNCTION CHART

Disconnect

Note. To prevent damage to the coupler, do not use hand tools to disconnect/connect the C-lock coupler.

Note. Do not remove the lock ring from the C-lock coupler.

Scheme 41

Scheme 42

1. NOTE: Hold the female side of the coupler at the hose connection to prevent the coupler from rotating internally. Gently twist the lock ring until the ring has rotated approximately 90 degrees.
2. NOTE: The female side of the C-lock coupler contains an o-ring seal. Use care not to lose the o-ring. Slide the C-lock coupler apart from the component fitting.
3. NOTE: Do not leave the lock ring in the unlocked position. This will weaken the lock ring and will prevent it from correctly locking in place when reassembled, resulting in a leak.

Rotate the lock ring back to the original locked position.

Scheme 43

Connect

1. Verify the C-lock coupler lock ring is in the locked position.
2. NOTE: The lock ring flexes open slightly to allow the male fitting to enter the C-lock coupler. NOTE: The lock ring can be heard as it snaps into the lock position. Insert the male fitting into the C-lock coupler.
3. Gently pull on the C-lock coupler to verify the coupler is seated correctly.

Scheme 44

PARTS DESCRIPTION CHART

Scheme 45

PARTS DESCRIPTION CHART

Scheme 46

PARTS DESCRIPTION CHART

1. For additional information, refer to the appropriate procedure(s).

Scheme 47

Scheme 48

1. Remove the wiper pivot arm nut cover.
2. NOTE: A suitable 2 jaw puller may be necessary to remove the wiper pivot arm. Remove the nut and the wiper pivot arm. To install, tighten to 25 Nm (18 lb-ft).
3. To install, reverse the removal procedure. Adjust the wiper pivot arms. For additional information, refer to «WIPER BLADE AND PIVOT ARM ADJUSTMENT - WINDSHIELD»(ref-372802-S26056073772010093000000) .

Scheme 49

1. Remove the cowl panel grille. For additional information, Refer to «FRONT END BODY PANELS»(ref-372798) .
2. Remove the 3 wiper mounting arm and wiper pivot shaft bolts. To install, tighten to 18 Nm (159 lb-in).
3. Disconnect the electrical connector and detach the wire harness pin-type retainer.
4. Remove the wiper mounting arm and wiper pivot shaft.
5. To install, reverse the removal procedure. Adjust the wiper pivot arms. For additional information, refer to «WIPER BLADE AND PIVOT ARM ADJUSTMENT - WINDSHIELD»(ref-372802-S26056073772010093000000) .

Material

MATERIAL SPECIFICATIONS

MATERIAL SPECIFICATIONS