GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lamps System Check?

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Go to Step 2

Go to Interior Lamps System Check

2

  1. Disconnect the rear compartment lid latch switch connector.
  2. Connect a fused jumper between the switch connector terminal A (ORN/BLK) of the rear compartment lid latch and ground.
  3. Turn the ignition switch to the ON position.

Does the rear compartment lamp light?

--

Go to Step 3

Go to Step 4

3

Test CKT 1050 (BLK) for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 1050 OK?

--

Go to Step 6

Go to Step 8

4

Test CKT 1732 (ORN) for an open or a short to ground between S336 and the rear compartment lamp. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems.

Is CKT 1732 OK?

--

Go to Step 5

Go to Step 8

5

Test CKT 737 (ORN/BLK) for an open. Refer to Testing for Continuity in Wiring Systems.

Is CKT 737 OK?

--

Go to Step 7

Go to Step 8

6

Replace the rear compartment lid latch switch.

Is the repair complete?

--

Go to Interior Lamps System Check

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7

Replace the rear compartment lamp. Refer to Rear Compartment Courtesy Lamp Replacement .

Is the repair complete?

--

Go to Interior Lamps System Check

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8

Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

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