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B2318-WIPER HI/LOW CONTROL 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 FCM detects a short/HIGH condition. Possible Causes WIPER HIGH/LOW RELAY POWER DISTRIBUTION CENTER 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 Wipers to Low then High. With the Scan Tool, read the Wiper DTC’s. Does the Scan Tool read: B2318-WIPER HI/LOW CONTROL CIRCUIT HIGH? 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 HIGH/LOW RELAY Turn the ignition off. Remove the Wiper Hi/Low Relay. Turn the ignition on. Activate the Wiper Switch to all speed positions. With the Scan Tool, read the DTC’s. Does the Scan Tool read: B2318-WIPER HI/LOW CONTROL CIRCUIT HIGH? Yes >> Replace the Wiper Hi/Low Relay in accordance with the service information. Perform the BODY VERIFICATION TEST — VER 1. No >> Go To 3 HB FRONT WIPERS/WASHERS - ELECTRICAL DIAGNOSTICS 8R - 27 |