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B2302-WIPER MODE SWITCH INPUT CIRCUIT HIGH (CONTINUED) For the Wiper/Washer system circuit diagram (Refer to 8 - ELECTRICAL/WIPERS/WASHERS - SCHEMATICS AND For a complete wiring diagram Refer to Section 8W. • When Monitored: • With the ignition on. • Set Condition: • When the Instrument Cluster detects a short/HIGH condition. Possible Causes MULTIFUNCTION SWITCH (W52) MUX CIRCUIT OPEN INSTRUMENT CLUSTER Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Diagnostic Test 1. INTERMITTENT CONDITION Turn the ignition on. With the Scan Tool, clear all CCN DTC’s. Turn the Wipers ON then OFF. With the Scan Tool, read the Wiper DTC’s. Does the Scan Tool read: B2302-WIPER MODE SWITCH INPUT Yes >> Go To 2 No >> The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermit- Perform the BODY VERIFICATION TEST — VER 1. 2. MULTIFUNCTION SWITCH Turn the ignition off. Disconnect the Multifunction Switch harness connector. Ensure the switch is in the OFF position. Measure the internal resistance of the Multifunction Switch between the G902 and W52 circuits. Does the Switch measure more than 5.0 ohms? Yes >> Replace the Multifunction Switch in accordance with the service information. Perform the BODY VERIFICATION TEST — VER 1. No >> Go To 3 8R - 6 WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS ND |