Chrysler Voyager. Manual — part 389

TEST

ACTION

APPLICABILITY

4

Turn the ignition on.
Turn the front wipers to an intermittent setting.
Using a 12-volt test light connected to 12-volts, back probe the Front Wiper Park
Switch Sense circuit at the Front Wiper Module harness connector.
NOTE: The test light should illuminate when the wipers are parked, then
turn off when the wipers move off of the parked position.
Does the test light turn on and off properly?

All

Yes

→ Replace the Front Control Module.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Front Wiper Module.

Perform BODY VERIFICATION TEST - VER 1.

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WINDSHIELD WIPER & WASHER

FRONT WIPER PARK SWITCH SHORT TO GND —

Continued

Symptom:

FRONT WIPER SWITCH MUX INPUT OPEN

POSSIBLE CAUSES

WIRING HARNESS INSPECTION

WINDSHIELD WIPER SWITCH MUX CIRCUIT OPEN

MULTIFUNCTION SWITCH MUX RETURN CIRCUIT OPEN

WIPER MUX CIRCUIT SHORTED TO VOLTAGE

BCM

MULTI-FUNCTION SWITCH

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRB, select Body, Body Controller and read the Front Wiper Sw volts.
Is the voltage above 4.8 volts?

All

Yes

→ Go To 2

No

→ Go To 6

2

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the BCM C5 harness connector.
Measure the resistance of the Front Wiper Switch MUX circuit between the BCM C5
harness connector and the Multi-Function Switch harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 3

No

→ Repair the Front Wiper Switch MUX circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

3

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance of the Multi-Function Switch MUX Return circuit between
the BCM C4 harness connector and the Multi-Function Switch harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 4

No

→ Repair the Multi-Function Switch MUX Return circuit for an

open.
Perform BODY VERIFICATION TEST - VER 1.

4

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the BCM C5 harness connector.
Turn the ignition on.
Measure the voltage of the Front Wiper MUX Switch Signal circuit.
Is the voltage above 1.0 volt?

All

Yes

→ Repair the Front Wiper Switch MUX circuit for a short to voltage.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 5

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WINDSHIELD WIPER & WASHER

TEST

ACTION

APPLICABILITY

5

Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Turn the ignition on.
Connect a jumper wire between the Front Wiper Switch MUX circuit and the
Mulit-Function Switch MUX Return circuit.
With the DRB, read the Front Wiper Sw volts?
Is the voltage below 0.5 volt?

All

Yes

→ Replace the Multi-Function Switch.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Replace the Body Control Module.

Perform BODY VERIFICATION TEST - VER 1.

6

Turn the ignition on.
With the DRBIII

t, erase all BCM and FCM DTCs.

Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?

All

Yes

→ Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Test Complete.

985

WINDSHIELD WIPER & WASHER

FRONT WIPER SWITCH MUX INPUT OPEN —

Continued

Symptom:

FRONT WIPER SWITCH MUX INPUT SHORT TO GROUND

POSSIBLE CAUSES

BCM

WIRING HARNESS INSPECTION

FRONT WIPER SWITCH MUX CIRCUIT SHORTED TO GROUND

FRONT WIPER SWITCH MUX CIRCUIT SHORTED TO M/F MUX RETURN CIRCUIT

MULTI-FUNCTION SWITCH

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
With the DRB, select Body, Body Controller and read the Front Wiper Sw volts?
Is the voltage above 0.3 volt?

All

Yes

→ Go To 2

No

→ Go To 3

2

Turn the ignition on.
With the DRBIII

t, erase all BCM and FCM DTCs.

Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?

All

Yes

→ Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Test Complete.

3

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

All

Yes

→ Repair the Front Wiper Switch MUX circuit for a short to ground.

Perform BODY VERIFICATION TEST - VER 1.

No

→ Go To 4

986

WINDSHIELD WIPER & WASHER