GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Body Rear End Schematics

1

Did you review the Luggage Compartment Description and Operation, and perform the necessary inspections?

Go to Step 2

Go to Luggage Compartment Description and Operation

2

Close the rear compartment.

Is the trunk ajar indicator illuminated?

Go to Step 3

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

3

Disconnect the rear compartment lid latch.

Is the trunk ajar indicator illuminated?

Go to Step 4

Go to Step 5

4

Test the rear compartment lid 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 8

Go to Step 7

5

Inspect for poor connections at the harness connector of the rear compartment lid latch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 6

6

Replace the rear compartment lid latch. Refer to Rear Compartment Lid Latch Replacement .

Did you complete the repair?

Go to Step 8

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7

Replace the driver information center (DIC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the repair?

Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2