Schematic Reference: Driver Information System Schematics

Connector End View Reference: Displays and Gages Connector End Views

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

Go to Step 2

Go to Symptoms - Body Rear End

Close the rear compartment.

Is the trunk ajar indicator illuminated?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections

1. Install a scan tool.
2. Turn ON the ignition with the engine OFF.
3. Close the rear compartment.
4. With a scan tool observe the TRUNK OPEN SWITCH parameter in the ISU Central Locking data list.

Does the scan tool indicate the TRUNK OPEN SWITCH parameter as OPEN?

Go to Step 4

Go to Step 7

Disconnect the rear compartment lid ajar switch.

Is the trunk ajar indicator illuminated?

Go to Step 5

Go to Step 6

Repair a short to ground in the signal circuit of the rear compartment lid ajar switch. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

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

Did you find and correct the condition?

Go to Step 9

Go to Step 8

Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 9

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

Did you complete the replacement?

Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3