MIC-Wiper Switch Input Circuit Shorted

MIC-WIPER SWITCH INPUT CIRCUIT SHORTED

MIC - Wiper Switch Input Circuit Shorted:

WHEN MONITORED
With the ignition on.

SET CONDITION
The Instrument Cluster detects the multifunction circuit voltage is below 0.05 volts.

POSSIBLE CAUSES
- Multi-function switch
- (W52) Intermittent wiper switch sense circuit short to ground
- Instrument cluster

1. INTERMITTENT CONDITION




Turn the ignition on.
With the DRBIII(R), clear all MIC DTC's.
Turn the Wipers ON.
With the DRBIII(R), read the DTC information.

Q: Does the DRBIII(R) read: Wiper Switch Input Circuit Short?

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. Body Verification Test

2. MULTI-FUNCTION SWITCH




Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Turn the ignition on.
With the DRBIII(R), read DTCs.

Q: Does the DRBIII(R) display: Wiper Switch Input Circuit Open?

YES: Replace the Multi- Function Switch. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3

3. INTERMITTENT WIPER SWITCH SENSE CIRCUIT SHORT TO GROUND




Turn the ignition off.
Disconnect the Multi-Function Switch harness connector.
Disconnect the Instrument Cluster C4 harness connector.
Measure the resistance between ground and the (W52) Intermittent Wiper Switch Sense circuit.

Q: Is the resistance below 5.0 ohms?

YES: Repair the (W52) Intermittent Wiper Switch Sense circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace and configure the Instrument Cluster. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test