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B230E-REAR WIPER PARK SWITCH INPUT CIRCUIT OPEN (CONTINUED) For the Rear Wipers/Washers circuit diagram (Refer to 8 - ELECTRICAL/WIPERS/WASHERS - SCHEMATICS AND For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes WIPER/WASHER SWITCH (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT HIGH FRONT CONTROL MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Diagnostic Test 1. INTERMITTENT CONDITION Turn the ignition on. With the Scan Tool, clear all FCM DTC’s. Turn the Rear Wipers on. With the Scan Tool, read the Rear Wiper DTC’s. Does the Scan Tool read: B230E-REAR WIPER PARK 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 the BODY VERIFICATION TEST — VER 1. 2. WIPER/WASHER SWITCH Turn the ignition off. Disconnect the Rear Wiper/Washer Switch connector. Measure the internal resistance of the Wiper/Washer Switch between cavity 1 and 2 of the switch. Is the resistance above 5.0 ohms? Yes >> Replace the Rear Wiper/Washer Switch in accordance with the service information. Perform the BODY VERIFICATION TEST — VER 1. No >> Go To 3 HB REAR WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS 8R - 63 |