MIC-Wiper Switch Input Circuit Open

MIC-WIPER SWITCH INPUT CIRCUIT OPEN

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
- Multi-function switch
- Instrument cluster
- (W52) Intermittent wiper switch sense circuit open

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 Open?

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.
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.

Q: Does the Multi- Function Switch measure more than 5.0 ohms?

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 OPEN




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

Q: Is the resistance above 5.0 ohms?

YES: Repair the (W52) Intermittent Wiper Switch Sense circuit for an open. 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