Wiper System & Washer System: Other Ford Escape I рестайлинг 2

Wipers and Washers

The wipers and washers system consists of the following

1. Washer fluid hoses
2. Windshield wiper blade
3. Windshield wiper pivot arm
4. Windshield wiper mounting arm and pivot shaft
5. Windshield wiper motor
6. Windshield washer reservoir
7. Windshield (2-way) washer pump
8. Check valves (integral to the washer pump)
9. Multifunction switch
10. Rear window wiper blade
11. Rear window wiper arm
12. Rear window wiper motor

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 motors contain relays that are not serviceable separately.

The front and rear washer system shares the same washer reservoir and washer pump. The front and rear wiper motor module integral electronics control the direction of the washer pump to direct washer fluid to the windshield or rear window.

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

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

Intermittent Rear Window Wiper System

When the multifunction switch is set to the rear INTERMITTENT position(s), it supplies ground to the rear window wiper motor module input and the wiper 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.

The front and rear washer systems 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 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 Chart

WINDSHIELD WIPER CIRCUIT FUNCTION CHART

Rear Wiper Circuit Function Chart

REAR WIPER CIRCUIT FUNCTION CHART

Washer Hose Repair

Note. This procedure may be carried out on rubber hoses only. If a plastic washer hose is leaking, a new washer hose must be installed.

Scheme 39

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. NOTE: In difficult cases, clamping may be required.

Install a segment of 6.4 mm (0.25 in) ID black rubber hose over the ends of the washer hose and clamp both ends of the rubber hose using spring clamps.

Scheme 40

PART DESCRIPTION CHART

Material

MATERIAL SPECIFICATIONS

MATERIAL SPECIFICATIONS