GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Instrument Cluster System Check

2

  1. Disconnect the rear compartment lid latch switch connector.
  2. Connect a fused jumper between switch connector terminal B and ground.

Does the TRUNK AJAR indicator illuminate?

--

Go to Step 3

Go to Step 4

3

Connect a fused jumper between switch connector terminal B and terminal C.

Does the TRUNK AJAR indicator illuminate?

--

Go to Step 5

Go to Step 6

4

Inspect for an open in CKT 744 (RED/BLK).

Is the wiring OK?

--

Go to Step 11

Go to Step 10

5

Inspect the rear compartment lid latch switch connector for proper terminal contact.

Is the terminal contact OK?

--

Go to Step 8

Go to Step 7

6

Inspect for an open in CKT 1350 (BLK/WHT).

Is the wiring OK?

--

Go to Instrument Cluster System Check

Go to Step 9

7

Repair the poor terminal contact.

Did you complete the repair?

--

Go to Instrument Cluster System Check

--

8

Replace the rear compartment lid latch switch.

Did you complete the repair?

--

Go to Instrument Cluster System Check

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9

Repair the open CKT 1350 (BLK/WHT).

Did you complete the repair?

--

Go to Instrument Cluster System Check

--

10

Repair the open in CKT 744 (RED/BLK).

Did you complete the repair?

--

Go to Instrument Cluster System Check

--

11

  1. Inspect the instrument cluster connector C1, terminal B3.
  2. Inspect terminal L6 of connector C200 for proper terminal contact.

Are the connector terminal contacts OK?

--

Go to Step 12

Go to Step 7

12

Replace the instrument cluster.

Did you complete the repair?

--

Go to Instrument Cluster System Check

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