Rear Wiper Switch Mux Input Open - Chrysler Town and Country 2003 Owner's Manual

WINDSHIELD WIPER & WASHER
Symptom:

REAR WIPER SWITCH MUX INPUT OPEN

When Monitored and Set Condition:
REAR WIPER SWITCH MUX INPUT OPEN
When Monitored: Ignition ON
Set Condition: A Sensor voltage is over 4.76 volts for more than .125 seconds.
INTERMITTENT WIRING AND CONNECTORS
REAR WIPER SWITCH MUX CIRCUIT OPEN
REAR WIPER SWITCH MUX RETURN CIRCUIT OPEN
REAR WIPER SWITCH OPEN
BODY CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRB, select Body, Body Control Module and read the R Wiper Switch Sensor
voltage.
Does the DRB display a Switch voltage greater than 4.5 volts?
Yes → Go To 2
→ Go To 5
No
2 Turn the ignition off.
Disconnect the Rear Wiper Switch harness connector.
Connect a jumper wire between the Rear Wiper Switch MUX circuit and the Rear
Wiper Switch MUX Return circuit in the Rear Wiper Switch harness connector.
Turn the ignition on.
With the DRB, select Body, Body Controller and read the Rear Wiper SW volts.
Does the DRB R Wiper Switch Sensor voltage read less than 0.3 Volts?
Yes → Replace the Rear Wiper Switch in accordance with the Service
→ Go To 3
No
3 Turn the ignition off to the lock position.
Disconnect the Body Control Module harness connector.
Disconnect the Rear Wiper Switch harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Rear Wiper Switch MUX circuit from the Body Control
Module connector to the Rear Wiper Switch harness connector.
Is the resistance above 5.0 ohms?
Yes → Repair the Rear Wiper Switch MUX circuit for an open.
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
998
APPLICABILITY
All
All
All