GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

--

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 lid latch switch connector cavity B (ORN/BLK) and ground.

Does the rear compartment lamp illuminate?

--

Go to Step 6

Go to Step 3

3

Test CKT 737 (ORN/BLK) for an open between the rear compartment lamp and the compartment lid latch switch. Refer to Testing for Continuity in Wiring Systems.

Is there an open in CKT 737?

--

Go to Step 4

Go to Step 8

4

Test CKT 1732 (ORN) between the rear junction block and the rear compartment lamp for an open. Refer to Testing for Continuity in Wiring Systems.

Is there an open in CKT 1732?

--

Go to Step 5

Go to Step 8

5

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

Is the rear compartment lamp replacement complete?

--

Go to Interior Lamps System Check

--

6

Test CKT 650 (BLK) for an open between the rear compartment lamp switch and G400. Refer to Testing for Continuity in Wiring Systems.

Is there an open in CKT 650?

--

Go to Step 7

Go to Step 8

7

Replace the rear compartment lid latch switch.

Is the rear compartment lid latch switch replacement complete?

--

Go to Interior Lamps System Check

--

8

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

Is the repair complete?

--

Go to Interior Lamps System Check

--