Symptom:
MIC-WIPER SWITCH INPUT CIRCUIT OPEN
When Monitored and Set Condition:
MIC-WIPER SWITCH INPUT CIRCUIT OPEN
When Monitored: With the ignition on.
Set Condition: The Instrument Cluster detects above 5.0 volts on the multi-function
circuit.
POSSIBLE CAUSES
INTERMITTENT CONDITION
MULTI- FUNCTION SWITCH
INTERMITTENT WIPER SWITCH SENSE CIRCUIT OPEN
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all MIC DTC’s.
Turn the Wipers ON.
With the DRBIIIt, read the DTC information.
Does the DRBIIIt read: Wiper Switch Input Circuit Open?
All
Yes → Go To 2
No → The condition that caused the symptom is currently not present.
Inspect the related wiring for a possible intermittent condition.
Look for any chafed, pierced, pinched, or partially broken wires.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Multi- Function Switch harness connector.
Ensure that the Multi- Function Switch is in the Off position.
Measure the internal resistance of the Multi- Function Switch between cavity 2 and
cavity 4.
Does the Multi- Function Switch measure more than 5.0 ohms?
All
Yes → Replace the Multi- Function Switch in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 3
546
WINDSHIELD WIPER & WASHER