Chrysler 300M, Dodge Interpid. Manual — part 117

(5) Place the wiper switch in the ON position.

Using a voltmeter, check for battery voltage at termi-
nal D and A of the intermittent wiper relay in the
Power Distribution Center. If no voltage check fuse
M. If OK, go to Step 6. If not OK, repair as neces-
sary.

(6) Using an ohmmeter, check from terminal D of

the HI-LO wiper relay to Pin 1 of the motor wire con-
nector for continuity. Check from terminal E of the
HI-LO wiper relay to Pin 2 of the motor wire connec-
tor for continuity. If OK, go to Step 7. If not repair as
necessary.

(7) Using

an

ohmmeter,

check

for

continuity

between the HI-LO wiper relay and the intermittent
wiper relay. Check from terminal B of the HI- LO
wiper relay to terminal B of the intermittent wiper
relay. If OK, check for faulty relays and go to Step 8.
If not repair as necessary.

(8) Disconnect the C3 bone 12-way connector from

the BCM.

(9) Using an ohmmeter, check for continuity from

terminal 4 of the BCM C3 24-way, black connector to
the terminal C of the intermittent wiper relay. If OK,
go to Step 10. If not repair as necessary.

(10) Using a voltmeter, connect positive lead to ter-

minal 8 of the BCM C2 black 24-way connector and
negative lead to ground. Turn ignition switch to the
ON position. Slowly move the wiper switch from OFF
position through each position to HIGH.

(a) If voltage increases from zero to approxi-

mately 10 volts in the HIGH position, replace
BCM. If no voltage, go to Step b.

(b) Using an ohmmeter, check for continuity

from terminal 3 of wiper switch connector to termi-
nal 8 of the BCM C2 black 24-way connector. If no
continuity, repair circuit. If OK, go to Step c.

(c) Using a voltmeter, connect positive lead to

terminal 1 of the wiper switch connector. If ignition
voltage is present, replace the wiper switch. If no
voltage, check continuity from fuse 5 to terminal 1
of the wiper switch connector. Repair circuit as
necessary.
(11) Disconnect motor connector and replace fuse 5

from the Junction Block.

(a) If fuse does not blow, go to Step 2.
(b) If fuse blows, wiper control circuit is at fault,

repair as necessary, refer to Wiring Diagrams.

MOTOR RUNS SLOWLY AT ALL SPEEDS

(1) Disconnect the wire harness from the wiper

motor. Remove wiper arms and blades. Disconnect
motor drive link from motor. Connect an amp meter
between battery negative jump start terminal and
Pin 5 on the wiper motor connector. Connect battery
positive wire to Pin 2 on the wiper motor connector.

When replacing motor crank nut tighten to 15-20
N·m (130-177 in. lbs.) torque.

(a) If average amp meter reading is more than

10 amps with a hot motor and dry windshield,
replace motor.

(b) If motor runs and average ammeter reading

is less than 10 amps, go to Step 2.
(2) Check to see if wiper linkage or pivots are

binding or caught.

MOTOR WILL RUN AT HIGH SPEED, BUT NOT
MOVE AT LOW SPEED. MOTOR WILL RUN AT
LOW SPEED, BUT WILL NOT MOVE AT HIGH
SPEED

(1) Disconnect motor connector.
(2) If motor will not run on low speed, connect a

jumper wire between battery positive jump start ter-
minal and Pin 2 on the wiper motor connector. Con-
nect a second jumper wire between ground and Pin 5
on the wiper motor wire harness connector.

(a) If motor runs, go to Step 3.
(b) If motor does not run, replace the motor.

(3) If motor will not run on high speed, connect a

jumper wire between battery positive terminal and
Pin 1. Connect a second jumper wire between ground
and Pin 5 of the motor connector.

(a) If motor runs, go to Step 4.
(b) If motor does not run, replace the motor.

(4) If wipers will not run at low speed, using an

ohmmeter, check for open circuit. Check between ter-
minal E of the HI-LO wiper relay to Pin 2 of the
wiper motor wire harness connector for continuity. If
OK, go to Step 5. If not repair circuit as necessary.

(5) If wiper will not run at the high speed, using

an ohmmeter, check for an open circuit. Check
between terminal D of the HI-LO wiper relay and
Pin 2 of the wiper motor wire harness connector for
continuity. If OK, go to Step 6. If not repair circuit as
necessary.

(6) Check for faulty HI-LO wiper relay.

WIPERS RUN AT HIGH SPEED WITH SWITCH IN
LOW SPEED POSITION. WIPERS OPERATE IN
INTERMITTENT MODE, BUT EACH WIPE IS AT
HIGH SPEED.

(1) Disconnect motor connector.
(2) Using two jumper wires, connect one between

the battery positive jump start terminal and Pin 2 on
the wiper motor connector. Connect the second lead
between ground and Pin 5 on the wiper motor con-
nector. If motor runs at low speed, go to Step 3. If
motor runs at high speed, replace the motor.

LH

WIPERS/WASHERS

8R - 7

WIPERS/WASHERS (Continued)

(3) Check for faulty HI-LO wiper relay. Check for

crossed wires in harness from HI-LO relay to motor.

(4) Disconnect C3 bone 12-way connector from the

BCM and remove the HI/LO wiper relay.

(5) Using an ohmmeter, check terminal 12 of the

C3 bone 12-way connector for short to ground.

(6) If continuity to ground is present, repair as

necessary. If no continuity to ground, replace the
BCM.

WIPERS RUN AT LOW SPEED WITH SWITCH IN
HIGH SPEED POSITION

(1) Check for faulty HI-LO wiper relay.
(2) Using an ohmmeter, check for open circuit

between terminal C of the HI-LO wiper relay and
terminal 12 of the BCM 33 bone 12-way connector. If
OK, go to Step 3. If not OK, repair as necessary.

(3) Check wiper switch.
(4) Check for binding linkage
(5) Refer to MOTOR RUNS SLOWLY AT ALL

SPEEDS.

MOTOR WILL KEEP RUNNING WITH SWITCH IN
OFF POSITION.

(1) Check wiper motor wiring harness for shorts

between the low speed motor feed terminal 2 or high
speed motor feed terminal 1 and battery or ignition.

(2) Check for faulty wiper ON/OFF or HI/LO relay.
(3) Check circuit from ON/OFF relay terminal C to

HI/LO relay terminal B for short to battery or igni-
tion.

(4) Disconnect the C3 bone 12-way connector from

the BCM. Check circuit from terminal 4 of C3 bone
12-way connector to terminal C of the ON/OFF wiper
relay for short to ground.

(5) Check circuit from terminal 3 of C2 bone

24–way connector to Pin 4 of the wiper motor har-
ness connector for an open. If open circuit, repair as
necessary.

(6) Using a voltmeter, connect positive lead to ter-

minal 8 of the C2 black 24-way connector. Connect
negative lead to ground. If voltmeter reads greater
than 0 volts, check wiper switch and wiring.

(7) Using a voltmeter, connect positive lead to ter-

minal 8 of the C3 black 12-way connector.

(a) If voltmeter reads 10 to 15 volts, check the

circuit for short to battery or ignition.

(b) If the voltmeter reads 0 volts, replace the

BCM.

WIPER WILL RUN CONTINUOUSLY WITH SWITCH
IN THE INTERMITTENT POSITION. WHEN COLUMN
SWITCH IS TURNED OFF, WIPERS STOP
WHEREVER THEY ARE, WITHOUT RETURNING TO
PARK POSITION.

(1) Using an ohmmeter, check for ground at Pin 4

on the wiper motor connector. If grounded, replace
motor.

(2) Using an ohmmeter, with the wiper motor in

the PARK position, check for continuity between Pin
5 and Pin 4 on the wiper motor connector. If contin-
uous continuity, go to Step 3. If not OK, replace
motor.

(3) Disconnect the wiper motor wire harness con-

nector and the BCM C3 bone 12–way connector.
Check for continuity between Pin 1 of the wiper
motor wire harness connector and terminal 3 of the
BCM C3 bone 12-way connector. If no continuity,
repair as necessary. If continuity is OK, test the
wiper motor.

WIPERS DO NOT RUN WHEN WASHER MOTOR IS
ENGAGED

(1) Disconnect the C2 black 24-way connector from

the BCM.

(2) Using a voltmeter, connect positive lead to ter-

minal 7 of the C2 black 24-way connector and the
negative lead to ground.

(3) Engage the washer switch so that the washer

motor runs continuously.

(a) If the voltage is zero, check the wiring

between the washer switch terminal 2 and the
BCM and repair as necessary.

(b) If the battery voltage is shown, replace the

BCM.

HEADLAMP WASHERS -
EXPORT

DESCRIPTION

Headlamp washers are available as a factory-in-

stalled option on this model. The headlamp washers
on this vehicle work in conjunction with the wind-
shield washers. The headlamp washers are enabled
with the headlamps “ON” and the windshield wash-
ers activated. With the windshield washers activated
the headlamp washers will spray for a preset amount
of time controlled by a relay.

8R - 8

WIPERS/WASHERS

LH

WIPERS/WASHERS (Continued)

OPERATION

The headlamp washer system utilizes a separate

high pressure pump that is attached to the wind-
shield washer reservoir. The headlamp washer pump
feeds four nozzles that are mounted behind the front
fascia of the vehicle. The nozzle bodies have a tele-
scopic action that will extend the nozzles in front of
the headlamp assembly. During the telescopic action,
doors in the fascia will open to allow the nozzles to
advance into the proper spray position. These nozzles
spray the headlamps when the system is activated.

DIAGNOSIS AND TESTING - HEADLAMP
WASHER - EXPORT

Whenever a headlamp washer malfunction occurs,

first verify that the windshield washer wire harness
is properly connected to all connectors before starting
normal diagnosis and repair procedures. Refer to
Windshield/Headlamp Washer Test table.

WINDSHIELD/HEADLAMP WASHER TEST

CONDITION

POSSIBLE CAUSE

CORRECTION

WASHER POWER FEED
FUSE OPEN.

1. JUNCTION BLOCK FUSE
#5 BLOWN.

1. CHECK FUSE #5. REPLACE IF NOT OK.

BLOWN FUSE WHEN
WASHER SWITCH IS
DEPRESSED.

1. SHORT IN WIPER/
WASHER SWITCH.

1. DEFECTIVE WASHER SWITCH. REFER TO
WIPE/WASHER SWITCH DIAGNOSTIC
PROCEDURES.

2. SHORT IN MOTOR
POWER CIRCUIT.

2. SHORT OR DEFECTIVE CIRCUIT BETWEEN
WIPER/WASHER SWITCH CONNECTOR
TERMINAL #2 AND MOTOR CONNECTOR
TERMINAL #1. IF NOT OK, REPAIR CIRCUIT.

3. SHORT IN WASHER
MOTOR.

3. REPLACE WASHER MOTOR.

LH

WIPERS/WASHERS

8R - 9

HEADLAMP WASHERS - EXPORT (Continued)

CONDITION

POSSIBLE CAUSE

CORRECTION

WASHER SYSTEM WILL
NOT FLOW WASHER
FLUID.

1. JUNCTION BLOCK FUSE
#5 BLOWN.

1. SHORT CIRCUIT BETWEEN JUNCTION
BLOCK FUSE #5 AND WIPER SWITCH
TERMINAL #1. SHORT IN WIPER SWITCH. IF
NOT OK, REPAIR CIRCUIT OR REFER TO
WIPER/WASHER SWITCH DIAGNOSTIC
PROCEDURES.

2. MOTOR CONNECTOR
LOOSE.

2. PROPERLY SEAT CONNECTOR TO MOTOR.

3. MOTOR CONNECTOR
TERMINALS BENT.

3. REPAIR TERMINALS AND PROPERLY SEAT
CONNECTOR TO MOTOR.

4. OPEN POWER CIRCUIT
TO SWITCH.

4. OPEN OR DEFECTIVE CIRCUIT BETWEEN
JUNCTION BLOCK FUSE #5 AND WASHER
SWITCH CONNECTOR TERMINAL #1. IF NOT
OK, REPAIR CIRCUIT.

5. OPEN OR DEFECTIVE
WIPER/WASHER SWITCH.

5. REFER TO WIPER/WASHER SWITCH
DIAGNOSTIC PROCEDURES.

6. OPEN POWER CIRCUIT
TO MOTOR.

6. OPEN OR DEFECTIVE CIRCUIT BETWEEN
WIPER/WASHER SWITCH CONNECTOR
TERMINAL #2 AND MOTOR CONNECTOR
TERMINAL #1. IF NOT OK, REPAIR CIRCUIT.

7. OPEN OR DEFECTIVE
MOTOR GROUND CIRCUIT.

7. OPEN OR DEFECTIVE CIRCUIT BETWEEN
WASHER MOTOR CONNECTOR GROUND
TERMINAL #2 AND LEFT HEADLAMP GROUND
#5 OR ENGINE GROUND #1 OR #2.

8. OPEN CIRCUIT IN
MOTOR.

8. CHECK FOR AN OPEN CIRCUIT ON MOTOR
BETWEEN POWER TERMINAL #1 AND
GROUND TERMINAL #2. IF NOT OK, REPLACE
WASHER MOTOR.

9. SEIZED MOTOR
BEARINGS.

9. APPLY DIRECT BATTERY VOLTAGE TO
MOTOR TERMINALS. IF MOTOR DOES NOT
RUN, REPLACE MOTOR.

10. PINCHED WASHER
HOSE.

10. ASSURE WASHER HOSE IS NOT PINCHED.
IF NOT 0K, PROPERLY ROUTE WASHER
HOSE.

HOOD NOZZLE WILL NOT
FLOW.

1. PINCHED NOZZLE
HOSE.

1. ASSURE NOZZLE HOSE IS NOT PINCHED,
LOOSE, BROKEN, OR DISCONNECTED. IF
NOT OK, PROPERLY ROUTE OR REPAIR
NOZZLE HOSE.

2. PLUGGED NOZZLE OR
NOZZLE HOSE BY
CONTAMINATION.

2. CLEAN NOZZLE OR NOZZLE HOSE OF
CONTAMINATION. DETERMINE SOURCE OF
CONTAMINATION. INSPECT RESERVOIR FOR
EXCESSIVE CONTAMINATION. CLEAN
SYSTEM AS REQUIRED.

3. DEFECTIVE NOZZLE
CHECK VALVE.

3. REPLACE HOOD NOZZLE.

1. ASSURE NOZZLE IS
SNAPPED IN PLACE.

1. NOZZLE NOT SEATED IN
HOOD.

1. ASSURE NOZZLE IS SNAPPED IN PLACE.

8R - 10

WIPERS/WASHERS

LH

HEADLAMP WASHERS - EXPORT (Continued)