Wiper System & Washer System Ford Crown Victoria II

GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Wipers and Washers

The windshield wiper/washer system consists of the following components

1. windshield wiper blades
2. windshield wiper pivot arm
3. windshield wiper mounting arm and pivot shaft assembly
4. windshield wiper motor
5. windshield washer nozzle
6. windshield washer reservoir
7. windshield washer pump

Refer to SYSTEM WIRING DIAGRAMS for schematic and connector information.

Scheme 1

Principles of Operation

The windshield wiper motor receive inputs from the following

1. multifunction switch
2. lighting control module (LCM)
3. ignition switch
4. battery junction box (BJB)
5. central junction box (CJB)

The following components are integrated into the windshield wiper motor

1. windshield wiper motor module
2. high/low speed relay
3. run/park sensor (Hall-effect)
4. washer pump relay

High Speed Windshield Wipers

High speed is activated when the multifunction switch supplies ground to the windshield wiper motor module inputs. The windshield wiper motor module then supplies ground to the run/park sensor and high/low relay coil, activating the relay with voltage supplied from the ignition switch (RUN/ACC) through the central junction box (CJB). When the windshield wiper motor module receives voltage from the run/park sensor, it removes ground from the run/park sensor, deactivating it. The windshield wiper motor continues to operate from voltage connected through the run/park sensor until the Hall-effect senses the magnet in the motor. When the Hall-effect senses the magnet in motor the windshield wiper motor returns to the park position, the internal run/park sensor grounds the windshield wiper motor module input and the windshield wiper motor module removes ground from the windshield wiper high/low relay coil, deactivating the high/low relay and windshield wiper motor. The windshield wiper motor module continues to cycle the windshield wipers until the inputs from the multifunction switch are changed from the high speed position.

Low Speed Windshield Wipers

Low speed is activated when the multifunction switch supplies a specific ground to the speed inputs of the windshield wiper motor module. The windshield wiper motor module then supplies ground to only the windshield wiper run/park relay coil, activating it. When the windshield wiper run/park relay is activated, the deactivated windshield high/low relay connects voltage to the windshield wiper motor low input activating the wiper motor. The windshield wiper motor module continues to operate the windshield wiper motor in the same manner as in high speed, but in low speed with the wiper motor connected to the low speed input.

Intermittent Speed Windshield Wipers

The intermittent wiper speed is activated with grounds controlled by the multifunction switch inputs to the windshield wiper motor module. The windshield wiper motor module then activates the windshield wiper run/park relay coil and switches voltage through the windshield wiper high/low relay. The high/low relay remains deactivated, supplying the voltage to the wiper motor low speed input and activates the windshield wiper motor. When the windshield wiper motor module receives the grounded input, the motor continues to operate until Hall-effect sensors sense the wiper motors magnet, which turns off the run/park sensor output to the windshield wiper run/park software, deactivating the relay and disconnecting voltage to 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.

The windshield washer is activated by the internal wiper motor module when it receives a ground from the multifunction switch between the washer input. Dependent on the correct ground, the internal wiper motor modules activates the windshield washer relay (internal) by grounding the respective relay coil. When the relay is activated, it connects voltage to the washer pump while the washer level switch provides ground to the washer pump.

Default Mode

The windshield wiper motor defaults to this mode when the run/park sensor does not sense the Hall-effect magnet inside the wiper motor. This can be caused by obstruction of the windshield wipers or a binding linkage. The windshield wiper motor will continue to operate in a high/low speed condition for a period of 60 seconds.

Safety Feature

When the wipers are turned on, the LCM receives a momentary power input on circuit 28 (BK/PK), indicating the wiper motor has passed through a parking position. At this time the LCM supplies 12 volts on circuit 502 (GY), which powers the low beams of the headlamps. This feature is not available with the police package.

Scheme 2

1. Verify the customer concern by operating the system.
2. Visually inspect the following for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the Symptom Chart.

LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

Note. For a complete list of LCM DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES

Scheme 3

Scheme 4

Scheme 5

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Component Test - Windshield Wiper Motor

Note. Windshield wiper motor component test is carried out to determine if windshield wiper motor and module are functional and not in software safe mode. Refer to PRINCIPLES OF OPERATION for software safe mode parameters.

Note. Battery voltage must remain within 10 to 15 VDC to carry out test and keep windshield wiper motor from entering its software safe mode.

Note. When connecting the power and ground test leads to the windshield wiper motor terminals, care must be taken to not short terminals between power and ground, as well as making sure the logic ground, pin 3, is always securely connected to prevent permanent windshield wiper motor module damage.

If the windshield wiper motor does not pass any of the following tests, install a new windshield wiper motor. Refer to WINDSHIELD WIPER MOTOR .

Use SABRE Premium Battery and Electrical System Tester to test the windshield wiper motor.

Scheme 13

To test the windshield wiper motor, remove the windshield wiper mounting arm and pivot shaft from the windshield wiper motor. Refer to WIPER MOUNTING ARM AND PIVOT SHAFT .

Disconnect the wiper motor. Connect the (1) green lead from the (2) SABRE to the battery negative (-) post. Connect the red lead (3) from the SABRE to the wiper motor (4) component side connector ground and logic ground pins 6 and 3 (3). Connect battery positive cable (5) to windshield wiper motor (4) component side connector battery and logic positive pins 5 and 8 (5).

Low Speed

Test the low speed mode by connecting a separate set of test leads from battery ground (-) post to windshield wiper motor (4) component side pins 9 and 10 (6). When these pins are grounded, the windshield wiper motor operation should now be in low speed mode.

High Speed

Test the high speed mode by connecting a separate set of test leads from battery ground (-) post to windshield wiper motor (4) component side pins 1, 9, and 10 (7). When these pins are grounded, the windshield wiper motor operation should now be in high speed mode.

Washer Pump Relay (Integral)

Test the windshield wiper motor internal washer relay function by measuring the voltage between windshield wiper motor (4) component side pin 7 (8), and ground while grounding the windshield wiper motor (4) component side pin 12 (9). When wash command input pin 12 is grounded, measured voltage should read 10 volts or greater.

Scheme 14

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 wiper pivot arms and reposition to the correct location. For additional information, refer to «WIPER PIVOT ARM»(/ford/crown-victoria/ii-1997-2011/remont/wiperwasher-systems/#wiper-system-washer-system) .

Scheme 15

Scheme 16

1. Lift the windshield wiper pivot arm to the full upright position.
2. Remove the windshield wiper pivot arm. Release the locking tab. Remove the windshield wiper pivot arm.
3. To install, reverse the removal procedure.

Scheme 17

Scheme 18

Scheme 19

1. Remove the cowl grille. For additional information, refer to «COWL PANEL GRILLE.»(/ford/crown-victoria/ii-1997-2011/remont/exterior-body-panels/#body-panel-system-front-end-body-panels) .
2. Position the evaporative emission canister purge valve aside. Remove the nuts. Position the valve aside.
3. Position the mounting arm and pivot shaft aside. Remove the bolts.
4. Remove the mounting arm and pivot shaft. Disconnect the electrical connector. Disconnect the windshield washer hose.
5. To install, reverse the removal procedure.

Scheme 20

Scheme 21

1. Remove the mounting arm and pivot shaft assembly. For additional information, refer to «WIPER MOUNTING ARM AND PIVOT SHAFT»(/ford/crown-victoria/ii-1997-2011/remont/wiperwasher-systems/#wiper-system-washer-system) .
2. Remove the windshield wiper motor cover.
3. Disconnect the wiper motor linkage.
4. Remove the windshield wiper motor. Remove the three bolts.
5. To install, reverse the removal procedure.

Scheme 22

1. Remove the air cleaner assembly. For additional information, refer to «AIR CLEANER»(/ford/crown-victoria/ii-1997-2011/remont/removal-installation/#intake-air-distribution-filtering) .
2. Position the washer pump and reservoir aside. Remove the bolts. Position the washer pump and reservoir aside.
3. Remove the washer pump and reservoir. Disconnect the electrical connectors. Disconnect the washer hose. Remove the washer pump and reservoir.
4. Remove the washer pump.
5. To install, reverse the removal procedure.

See also:
• MULTIFUNCTION ELECTRONIC MODULES
• COWL PANEL GRILLE.
• AIR CLEANER
• PINPOINT TEST G
• PRINCIPLES OF OPERATION