Chrysler 1998 Voyager Service Manual page 442

8K - 2 WINDSHIELD WIPERS AND WASHERS
DIAGNOSIS AND TESTING (Continued)
ule (BCM). If a problem occurs in the electronic com-
ponents, wiring, switch (except integral motor park
switch) and wiper motor a Diagnostic Trouble Code
(DTC) will be stored in the BCM memory. DTC's can
be retrieved using a scan tool (DRB). Refer to proper
Body Diagnostic Procedures manual for DTC descrip-
tions and retrieval information.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
chart.
FAILED PARK SWITCH
If the wiper park switch has failed the windshield
wipers will operate as follows:
CONDITION
WIPER BLADES DO NOT PARK
PROPERLY
MOTOR STOPS IN ANY
POSITION WHEN THE SWITCH
IS TURNED OFF
MOTOR WILL NOT STOP WHEN
THE SWITCH IS TURNED OFF
WIPER BLADES SLAP AGAINST
COWL SCREEN OR WINDOW
MOLDINGS.
regardless of the park signal.
speed for one or more extra wipes or continuously.
speed in any mode setting. Wipers operate only while
wash button is depressed with switch in OFF mode,
wipers stop in mid-cycle when button is released.
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
table.
WIPER SYSTEM DIAGNOSIS
POSSIBLE CAUSES
1. WIPER ARMS IMPROPERLY
PARKED.
2. WIPER ARMS ARE LOOSE ON
PIVOT SHAFT.
3. MOTOR CRANK LOOSE AT
OUTPUT SHAFT.
1. OPEN PARK CIRCUIT.
1. FAULTY SWITCH.
2. LOCK OF DYNAMIC BRAKE ON
WET GLASS.
1. WIPER ARMS ARE PARKED
INCORRECTLY.
SWITCH OFF—Wipers stop in current location
INTERMITTENT MODE—Wipers operate at low
LOW SPEED—Wipers operate at low speed.
HIGH SPEED—Wipers operate at high speed.
PULSE WIPE—Wipers will not operate.
WIPE AFTER WASH—Wipers operate at low
The windshield wiper park switch and circuit is
1. REMOVE WIPER ARMS AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
2. REMOVE WIPER ARM AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
3. REMOVE WIPER ARM, RUN
WIPER MOTOR TO PARK
POSITION AND REMOVE THE
MODULE. WITHOUT ROTATING
THE MOTOR OUTPUT SHAFT,
REMOVE THE CRANK AND CLEAN
ANY FOREIGN MATTER FROM
THE MOTOR SHAFT. INSTALL THE
MOTOR CRANK IN ITS ORIGINAL
POSITION.
1. CHECK PARK SWITCH BY
DISCONNECTING THE WIRE
CONNECTOR AND APPLY
BATTERY VOLTAGE TO PIN 4.
PLACE A JUMPER WIRE FROM
PIN 2 TO PIN 3 AND THEN TO AN
EXTERNAL GROUND. REPLACE
MOTOR IF IT DOES NOT PARK.
1. CHECK SWITCH IN LOW, HIGH
AND INTERMITTENT POSITION.
2. ENSURE PARK SWITCH HAS
CLEAN GROUND.
1. PARK WIPER ARMS. REFER TO
WIPER ARM ADJUSTMENT.
NS
CORRECTION