GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the IC Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Does the rear compartment lid pull down motor operate properly?

--

Go to Step 3

Go to General Electrical Diagnosis

3

  1. Disconnect the rear compartment lid pull down motor.
  2. Connect a fused jumper from the harness terminal E to ground.

Is the TRUNK AJAR?

--

Go to Step 6

Go to Step 4

4

  1. Disconnect the IPC connector C1.
  2. Connect a test lamp from the IPC connector C1 terminal B10 battery positive voltage.

Is the test lamp lit?

--

Go to Step 7

Go to Step 5

5

Repair the open in CKT 1150. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

--

6

Replace the compartment lid pull down motor. Refer to Rear Compartment Lid Pull Down Motor in Body Rear End.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

--

7

Replace the IPC.

Did you complete the repair?

--

Go to Diagnostic System Check - Instrument Cluster

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