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• When Monitored: • With the Headlamps activated. • Set Condition: • When the TIPM detects a HIGH condition. Possible Causes (L34) HIGH BEAM CONTROL CIRCUIT OPEN (L34) HIGH BEAM CONTROL SHORT TO VOLTAGE RIGHT HIGH BEAM BULB TOTALLY INTEGRATED POWER MODULE Diagnostic Test 1. INTERMITTENT CONDITION Turn the ignition on. With the Scan Tool, clear all TIPM DTC’s. Turn the Headlamps on. With the Scan Tool read the DTC information. Does the Scan Tool read: B1638-RIGHT HI BEAM 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- 2. RIGHT LOW BEAM BULB Turn the ignition off. Inspect the Right High Beam Bulb Assembly. Is the inoperative bulb OK? Yes >> Go To 3 No >> Replace the Inoperative bulb in accordance with the service information. Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- PM LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS 8L - 21 |