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1. Install a scan tool and with all of the doors closed, verify the door ajar switch parameters are Door Closed. If any of the door ajar switch parameters are Door Ajar while the doors are closed 2. Open the doors and verify the door ajar switch parameters are Door Ajar. If any of the door ajar switch parameters are Door Closed while the doors are open 3. If the door ajar switch inputs to the BCM function normally replace the IPC. Circuit/System Testing Door Ajar Switch Circuit Test 1. Ignition OFF, disconnect the harness connector at the affected door latch. 2. Test for less than 1 ohm between the listed ground circuit terminal and ground. Driver with power door locks terminal 8 Driver with out power door locks terminal 6 Front passenger and right rear terminal 3 Left rear terminal 6 If greater than the specified range, test the ground circuit for an open/high resistance. 3. Ignition ON, verify the scan tool door ajar switch parameter is Door Closed. If not the specified value, test the listed signal circuit terminal for a short to ground. If Driver with power door locks terminal 6 Driver with out power door locks terminal 4 Front passenger and right rear terminal 1 Left rear terminal 4 4. Install a 3A fused jumper wire between the listed signal circuit terminal and low reference circuit terminal. Verify the scan tool door ajar switch parameter is Door Ajar. Driver with power door locks terminal 6 to terminal 8 Driver with out power door locks terminal 4 to terminal 6 Front passenger and right rear terminal 1 to terminal 3 Left rear terminal 4 to terminal 6 If not the specified value, test the signal circuit for a short to voltage or an open/high
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Vehicle Access - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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