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Theory of Operation The scan tool will display the door state NOT the switch state. It will display as True/False. True states that the door Possible Causes (G80) FLIP-UP GLASS AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND FLIP-UP GLASS AJAR SWITCH BODY CONTROL MODULE 1. CHECK FOR SHORTED FLIP-UP GLASS AJAR SWITCH With the scan tool in Data Display, read the FLIP-UP AJAR SW state. Disconnect the Tailgate Flip-Up Glass Ajar Switch connector. Does the scan tool display FLIP-UP AJAR SW: FALSE? Yes >> Replace the Flip-up Glass Ajar Switch. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) No >> Go To 2 2. CHECK FOR (G80) FLIP-UP GLASS AJAR SWITCH SENSE CIRCUIT SHORT TO GROUND Disconnect the Body Control Module C1 harness connector. Using a 12–volt test light connected to 12–volts, test the (G80) Flip-Up Does the test light illuminate brightly? No >> Replace the Body Control Module in accordance with ser- vice information. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) Yes >> Repair the (G80) Flip-up Glass Ajar Switch Sense circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - CONTROL MODULES - STANDARD PROCEDURE) 8L - 130 LAMPS/LIGHTING - INTERIOR - ELECTRICAL DIAGNOSTICS KJ |