Schematic Reference: Release Systems Schematics

Did you perform the diagnostic system check - vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Press the rear compartment lid release switch in the glove box.

Does the rear compartment lid open?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF, vehicle in PARK.
3. With a scan tool, view the rear compartment lid release switch input parameter in the BCM data list.
4. Operate the rear compartment lid release switch.

Does the parameter change state?

Go to Step 6

Go to Step 4

1. Disconnect the rear compartment lid release switch. Refer to Rear Compartment Lid Switch Replacement in Body Rear End.
2. With a scan tool, view the rear compartment lid release switch input parameter in the BCM data list.
3. Connect a 3-amp fused jumper between the rear compartment lid release switch signal circuit and a good ground.

Does the parameter change state?

Go to Step 5

Go to Step 9

1. With a scan tool, view the rear compartment lid release switch input parameter in the BCM data list.
2. Connect a 3-amp fused jumper between the rear compartment lid release switch signal circuit and the rear compartment lid release switch ground circuit.

Does the parameter change state?

Go to Step 11

Go to Step 8

1. Disconnect the rear compartment lid release actuator.
2. Connect a test lamp between the rear compartment lid release actuator control voltage circuit of the rear compartment lid release actuator and a good ground.
3. Command the rear compartment lid release relay ON.

Does the test lamp turn ON for 1 second?

Go to Step 7

Go to Step 10

1. Connect a test lamp between the rear compartment lid release actuator control voltage circuit of the rear compartment lid release actuator and the rear compartment lid release actuator ground circuit of the rear compartment lid release actuator.
2. Command the rear compartment lid release relay ON.

Does the test lamp turn ON for 1 second?

Go to Step 14

Go to Step 17

Test the ground circuit of the rear compartment lid release switch for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 12

Test the rear compartment lid release signal circuit of the rear compartment lid release switch for high resistance or an open circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 12

Test the rear compartment lid release actuator control voltage circuit of the rear compartment lid release actuator for high resistance or an open circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 13

Inspect for poor connections at the harness connector of the rear compartment lid release switch. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 18

Inspect for poor connections at the harness connector of the rear compartment lid release switch. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 18

Inspect for poor connections at the rear compartment lid release relay. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 19

Inspect for poor connections at the harness connector of the rear compartment lid release actuator. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 20

Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 21

Repair the short to ground in the control circuit of the rear compartment lid release relay. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 22

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Repair the high resistance or open in the ground circuit of the rear compartment lid release actuator. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 22

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Replace the rear compartment lid release switch. Refer to Rear Compartment Lid Switch Replacement in Body Rear End.

Did you complete the replacement?

Go to Step 22

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Replace the rear compartment lid release relay.

Did you complete the replacement?

Go to Step 22

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Replace the rear compartment lid release actuator.

Did you complete the replacement?

Go to Step 22

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Replace the BCM. Refer to Control Module References in Computer Integrating Systems, for replacement, setup and programming.

Did you complete the replacement?

Go to Step 22

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3