Chrysler Voyager. Manual — part 386

Symptom:

FR WIPER HI-LO RELAY OPEN

POSSIBLE CAUSES

FUSED B(+) CIRCUIT

COMMON CIRCUIT OPEN

WIPER HI/LOW RELAY

WIPER ON/OFF RELAY

WIPER HI/LOW RELAY CONTROL CIRCUIT OPEN

FCM-ON/OFF RELAY DRIVER OPEN

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Remove the Wiper On/Off Relay from the PDC.
Using a 12-volt test light connected to ground, probe both Fused B(+) circuits in the
PDC.
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 at each terminal?

All

Yes

→ Go To 2

No

→ Repair the Fused B(+) circuit(s) for an open.

Perform BODY VERIFICATION TEST - VER 1.

2

Install a substitute relay in place of the Wiper On/Off Relay.
Turn the ignition on.
Turn the wipers on.
Does the system operate correctly?

All

Yes

→ Replace the Wiper On/Off Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Turn the ignition off.
Remove the wiper High/Low Relay from the PDC.
Remove the wiper On/Off Relay from the PDC.
Measure the resistance of the Common circuit between the High/Low Relay and the
On/Off relay in the PDC.
Is the resistance below 10.0 ohms?

All

Yes

→ Go To 4

No

→ Repair the Common circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

4

Install a substitute relay in place of the Wiper Hi/Low Relay.
Turn the ignition on.
Turn the wipers on.
Does the system operate correctly?

All

Yes

→ Replace the Wiper Hi/Low Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 5

971

WINDSHIELD WIPER & WASHER

TEST

ACTION

APPLICABILITY

5

Turn the ignition off.
Remove the Wiper Hi/Low Relay from the PDC.
Disconnect the FCM from the IPM.
Connect a jumper wire between the Wiper Hi/Low Relay Control circuit at the IPM
connector to ground.
Measure the resistance between ground and the Wiper Hi/Low Relay Control circuit
in the PDC.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the Front Control Module.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Repair the Wiper Hi/Low Relay Control circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

972

WINDSHIELD WIPER & WASHER

FR WIPER HI-LO RELAY OPEN —

Continued

Symptom:

FR WIPER HI-LO RELAY SHORT TO BATT

POSSIBLE CAUSES

WIPER HI/LOW RELAY

WIPER HI/LOW RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE

FCM

TEST

ACTION

APPLICABILITY

1

Turn the ignition off.
Remove the Wiper Hi/Low Relay from the PDC.
Disconnect the FCM from the IPM.
Turn the ignition on.
Measure the voltage of the Wiper Hi/Low Relay Control circuit at the PDC connector.
Is the voltage above 1.0 volt?

All

Yes

→ Repair the Wiper Hi/Low Relay Control circuit for a short to

voltage.
Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 2

2

Install a substitute relay in place of the Wiper Hi/Low Relay.
Turn the ignition on.
Turn the wipers on.
Does the system operate correctly?

All

Yes

→ Replace the Wiper Hi/Low Relay.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Front Control Module.

Perform BODY VERIFICATION TEST - VER 1.

973

WINDSHIELD WIPER & WASHER

Symptom:

FRONT WASH SWITCH INPUT STUCK

POSSIBLE CAUSES

HIGH BEAM/FRONT WASHER SWITCH MUX CIRCUIT SHORTED TO GROUND

MULTI-FUNCTION SWITCH

WIRING HARNESS INSPECTION

FCM

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRB, select Body, Front Control Module and read the F Washer Switch
state.
Does the DRB display switch state as Closed?

All

Yes

→ Go To 2

No

→ Go To 4

2

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Turn the ignition on.
With the DRB, select Body, Front Control Module and read the F Washer Switch
state.
Does the DRB display switch state as Open?

All

Yes

→ Replace the Multi-Function Switch.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 3

3

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the BCM C5 harness connector.
Measure the resistance between ground and the High Beam/Front Washer Switch
MUX circuit.
Is the resistance below 1000.0 ohms?

All

Yes

→ Repair the High Beam/Front Washer Switch MUX circuit for a

short to ground.
Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Front Control Module.

Perform BODY VERIFICATION TEST - VER 1.

974

WINDSHIELD WIPER & WASHER