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Chrysler Pacifica. Manual - part 275

Symptom:

REAR WASHER OUTPUT SHORT TO GROUND-IPM

POSSIBLE CAUSES

REAR WASHER MOTOR CONTROL CIRCUIT SHORT TO GROUND

REAR WASHER PUMP MOTOR FUNCTION

INTEGRATED POWER MODULE

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

Ignition on, engine not running.
Turn on the Rear Washer.
Does the Rear Washer Function properly?

All

Yes

→ Go To 2

→ Go To 3

Turn the ignition on.
With the DRBIII

t, erase all IPM DTCs.

Turn the ignition off.
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?

All

Yes

→ Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1.

→ Test Complete.

Turn the ignition off to the lock position.
Disconnect the IPM C5 harness connector.
Disconnect the Rear Washer Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Rear Washer Motor Control circuit.
Is the resistance less than 5.0 ohms?

All

Yes

→ Repair the Rear Washer Motor Control Circuit for a short to

ground.
Perform BODY VERIFICATION TEST - VER 1.

→ Go To 4

Turn the ignition off to the lock position.
Disconnect the IPM C5 harness connector.
Connect a 20A Fused jumper wire between B+ and the Rear Washer Motor Signal
circuit in the IPM connector harness.
NOTE: An internal short in the Washer Motor may cause the fuse to open.
Does the Washer Motor function?

All

Yes

→ Test Complete.

→ Replace the Rear Washer Pump Motor in accordance with the

Service Information.
Perform BODY VERIFICATION TEST - VER 1.

1097

WINDSHIELD WIPER & WASHER

Symptom:

REAR WASHER SWITCH STUCK-BCM

POSSIBLE CAUSES

REAR WASHER SWITCH STUCK

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRBIII

t, select Body, Body Control Module and read the Washer Switch

state.
Does the DRBIII

t display switch state as Closed?

All

Yes

→ Go To 2

→ Go To 3

Turn the ignition off.
Disconnect the Wiper/Washer Switch harness connector.
Turn the ignition on.
With the DRB, select Body, Body Control Module and read the Rear Washer Switch
state.
Does the DRB display switch state as Open?

All

Yes

→ Replace the Rear Washer Switch in accordance with the Service

Information.
Perform BODY VERIFICATION TEST - VER 1.

→ Go To 3

Turn the ignition on.
With the DRBIII

t, erase all BCM DTCs.

All

Yes

→ Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1.

→ Test Complete.

1098

WINDSHIELD WIPER & WASHER

Symptom:

REAR WIPER OUTPUT OPEN/SHORT TO GROUND -BCM

POSSIBLE CAUSES

REAR WIPER MOTOR CONTROL CIRCUIT OPEN

REAR WIPER MOTOR CONTROL CIRCUIT SHORT TO VOLTAGE

REAR WIPER MOTOR GROUND OPEN

INTERMITTENT WIRING AND CONNECTORS

REAR WIPER MOTOR

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

Ignition on, engine not running.
Turn on the Rear Wiper.
Does the Rear Wiper Function?

All

Yes

→ Go To 2

→ Go To 3

Turn the ignition on.
With the DRBIII

t, erase all BCM DTCs.

All

Yes

→ Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1.

→ Test Complete.

Turn the ignition off to the lock position.
Disconnect the Rear Wiper Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition and Rear Wiper Switch on.
Using a 12-volt test light connected to ground, check the Rear Wiper Motor Control
circuit in the Rear Wiper Motor harness connector.
Does the test light illuminate brightly?

All

Yes

→ Go To 4

→ Go To 5

1099

WINDSHIELD WIPER & WASHER

TEST

ACTION

APPLICABILITY

Turn the ignition off to the lock position.
Disconnect the Rear Wiper Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Ignition on, engine not running.
Using a 12-volt test light connected to 12 Volts, check the Rear Wiper Motor ground
circuit in the Rear Wiper Motor harness connector.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?

All

Yes

→ Replace the Rear Wiper Motor in accordance with the Service

Information.
Perform BODY VERIFICATION TEST - VER 1.

→ Repair the Rear Wiper Motor ground circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

Turn the ignition off to the lock position.
Disconnect the Body Control Module C2 harness connector.
Disconnect the Rear Wiper Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the Rear Wiper Motor Control Circuit from the Body
Control Module harness connector to the Rear Wiper Motor harness connector.
Is the resistance above 5.0 ohms?

All

Yes

→ Repair the Rear Wiper Motor Control Circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

→ Go To 6

Turn the ignition off to the lock position.
Disconnect the Body Control Module C2 harness connector.
Disconnect the Rear Wiper Motor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Rear Wiper Motor Control
circuit.
Does the test light illuminate brightly?

All

Yes

→ Repair the Rear Wiper Motor Control Circuit for a short to

voltage.
Perform BODY VERIFICATION TEST - VER 1.

→ Replace the Body Control Module in accordance with the Service

Information.
Perform BODY VERIFICATION TEST - VER 1.

1100

WINDSHIELD WIPER & WASHER

REAR WIPER OUTPUT OPEN/SHORT TO GROUND -BCM —

Continued

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