Chrysler RG Voyager. Manual — part 301
Symptom:
FRONT WIPER NOT PARKED
POSSIBLE CAUSES
FRONT CONTROL MODULE
FRONT WIPER MODULE
MECHANICAL PROBLEM
WIRING HARNESS INSPECTION
FRONT WIPER PARK SWITCH SENSE CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, select Body, Front Control Module, Inputs/Outputs and read the
Wiper Park Sw state.
Does the DRB display Closed?
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.
Inspect all of the moving components associated with the Front Wiper system. Look
for broken or damaged components which may prevent the wipers from parking
properly.
Are the any mechanical problems?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
1173
WINDSHIELD WIPER & WASHER
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Front Wiper Module harness connector.
Turn the ignition on.
With the DRB, select Body, Body Computer then Inputs/Outputs and read the Wiper
Park Sw state.
Connect one end of a jumper wire to the Front Wiper Park Switch Sense circuit at the
Front Wiper Module harness connector.
Momentarily connect the other end of the jumper wire to ground. Repeat this several
times.
Did the Switch state change between Open and Closed when connecting and
disconnecting the jumper?
All
Yes
→ Replace the Front Wiper Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Front Wiper Module harness connector.
Disconnect the FCM from the IPM.
Measure the resistance of the Front Wiper Park Switch Sense circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Front Wiper Park Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
1174
WINDSHIELD WIPER & WASHER
FRONT WIPER NOT PARKED —
Continued
Symptom:
FRONT WIPER ON RELAY OPEN
POSSIBLE CAUSES
FUSED B(+) CIRCUIT
WIPER ON/OFF RELAY
WIPER ON/OFF 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 On/Off Relay from the PDC.
Disconnect the FCM from the IPM.
Connect a jumper wire between the Wiper On/Off Relay Control circuit at the IPM
connector to ground.
Measure the resistance between ground and the Wiper On/Off 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 On/Off Relay Control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
1175
WINDSHIELD WIPER & WASHER
Symptom:
FRONT WIPER ON RELAY SHORT TO BATT
POSSIBLE CAUSES
WIPER ON/OFF RELAY
WIPER ON/OFF RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
FCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Remove the Wiper On/Off Relay from the PDC.
Disconnect the FCM from the IPM.
Turn the ignition on.
Measure the voltage of the Wiper On/Off Relay Control circuit at the PDC connector.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the Wiper On/Off 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 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
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
1176
WINDSHIELD WIPER & WASHER
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