GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Body Rear End Schematics

1

Did you review the Body Rear End 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 courtesy lamp switch.

Is the hatch ajar indicator illuminated?

Go to Step 4

Go to Step 5

4

Test the rear compartment courtesy lamp 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 courtesy lamp switch. 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 courtesy lamp switch. Refer to Rear Compartment Lid Ajar Indicator Switch Replacement .

Did you complete the repair?

Go to Step 8

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7

Replace the driver information display or the trip calculator. Refer to Driver Information Center Module Replacement in Instrument Panel, Gages, and Console.

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