Rear Hatch/Gate Ajar Indicator Malfunction

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Body Rear End Schematics Connector End View Reference: Body Rear End Connector End Views
1	Did you perform the Body Rear End Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Body Rear End
2	Verify that the rear hatch/gate ajar indicator is malfunctioning. Does the rear hatch/gate ajar indicator operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Is the rear hatch/gate ajar indicator always ON?	Go to Step 4	Go to Step 6
4	Install a scan tool. Close the liftglass and liftgate. Turn ON the ignition with the engine OFF. With a scan tool, observe the liftgate ajar switch and liftglass ajar switch parameters in the Liftgate Module data list. Does the scan tool display Ajar?	Go to Step 5	Go to Step 11
5	Disconnect the appropriate liftgate ajar or liftglass ajar switch. Does the scan tool display Ajar?	Go to Step 8	Go to Step 12
6	Install a scan tool. Open the liftglass and liftgate. Turn ON the ignition with the engine OFF. With a scan tool, observe the liftgate ajar switch and liftglass ajar switch parameters in the Liftgate Module data list. Does the scan tool display Ajar?	Go to Step 11	Go to Step 7
7	Turn OFF the ignition. Disconnect the appropriate liftgate ajar or liftglass ajar switch. Turn ON the ignition with the engine OFF. Connect a fused jumper between the appropriate ajar switch signal circuit and the appropriate ajar switch low reference circuit of the ajar switch harness connector. Does the scan tool display Ajar?	Go to Step 12	Go to Step 9
8	Test the liftgate ajar switch signal circuit or the liftglass ajar switch signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 13
9	Test the liftgate ajar switch signal circuit or the liftglass ajar switch signal circuit for an open. Refer to Circuit Testing andWiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 10
10	Test the liftgate ajar switch low reference circuit or the liftglass ajar switch low reference circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 13
11	Inspect for poor connections at the harness connector of the instrument panel cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 14
12	Inspect for poor connections at the harness connector of the appropriate ajar switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 15
13	Inspect for poor connections at the harness connector of the liftgate module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 16
14	Replace the instrument panel cluster. Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages, and Console. Did you complete the repair?	Go to Step 17	-
15	Replace the appropriate ajar switch. Did you complete the replacement?	Go to Step 17	-
16	IMPORTANT: When replacing the liftgate control module, refer to Liftgate Control Module Programming . Replace the liftgate module. Refer to Liftgate Control Module Replacement .Did you complete the replacement?	Go to Step 17	-
17	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2