GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

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Go to Step 2

Go to Interior Lamps System Check

2

  1. Disconnect the IP compartment lamp switch connector.
  2. Connect a fused jumper between the IP compartment lamp switch connector cavity A (DK BLU/BLK) and ground.

Does the IP compartment lamp illuminate?

--

Go to Step 6

Go to Step 3

3

Test CKT 148 (DK BLU/BLK) for an open. Refer to Testing for Continuity in Wiring Systems.

Is there an open in CKT 148?

--

Go to Step 4

Go to Step 8

4

Test CKT 1732 (ORN) between the IP junction block and the IP 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 IP compartment lamp. Refer to Instrument Panel Compartment Lamp Replacement .

Is the IP compartment lamp replacement complete?

--

Go to Interior Lamps System Check

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6

Test CKT 450 (BLK) between the IP compartment lamp switch and G201 for an open. Refer to Testing for Continuity in Wiring Systems.

Is there an open in CKT 450?

--

Go to Step 7

Go to Step 8

7

Replace the IP compartment lamp switch.

Is the IP compartment lamp switch replacement complete?

--

Go to Interior Lamps System Check

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8

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

Is the repair complete?

--

Go to Interior Lamps System Check

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