Hatch Release Inoperative (Rendezvous)

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. 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 , Body Control System Connector End Views and Electrical Center Identification 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 hatch release is inoperative. Does the hatch release operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool command the liftgate lock motor to Unlock. Does the liftgate open?	Go to Step 5	Go to Step 4
4	Probe the liftgate/endgate lock motor unlock control circuit of the BCM C1 harness connector with a test lamp that is connected to a good ground. With a scan tool command the liftgate lock motor to Unlock. Does the test lamp illuminate?	Go to Step 7	Go to Step 8
5	Disconnect the liftgate release switch. Probe the liftgate release switch signal circuit of the liftgate release switch harness connector with a test lamp that is connected to a good ground. Does the test lamp illuminate?	Go to Step 6	Go to Step 9
6	Connect a test lamp between the liftgate release switch signal circuit of the liftgate release switch harness connector and the ground circuit of the liftgate release switch harness connector. Does the test lamp illuminate?	Go to Step 10	Go to Step 13
7	Test the liftgate/endgate lock motor lock control circuit for an open. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 11
8	Test the liftgate/endgate lock motor unlock control circuit for a short to ground or an open. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 12
9	Test the liftgate release switch signal 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 12
10	Inspect for poor connections at the harness connector of the liftgate release switch. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 14
11	Inspect for poor connections at the harness connector of the liftgate lock actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 15
12	Inspect for poor connections at the harness connector of the body control module. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 16
13	Repair the open in the liftgate release switch ground circuit. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	-
14	Replace the liftgate release switch. Did you complete the replacement?	Go to Step 17	-
15	Replace the liftgate lock actuator. Did you complete the replacement?	Go to Step 17	-
16	IMPORTANT: When replacing the BCM refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control Systems. Replace the BCM. Refer to Body Control Module Replacement in Body Control Systems.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