GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire Interior Lights System Check performed?

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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 B (DK BLU) and ground.

Did the IP compartment lamp light?

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Go to Step 3

Go to Step 5

3

  1. Remove the fused jumper.
  2. Connect a DMM from the IP compartment lamp switch connector cavity A (BLK) to ground.

Is the resistance less than the specified value?

0.5 ohms

Go to Step 4

Go to Step 8

4

Replace the IP compartment lamp switch. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.

Is the IP compartment lamp switch replacement complete?

--

Go to Interior Lamps System Check

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5

  1. Remove the fused jumper.
  2. Disconnect the IP compartment lamp connector.
  3. Place the interior lamp switch in the ON position.
  4. Connect a DMM from the IP compartment lamp connector cavity A (DK BLU/WHT) to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 9

6

Connect a DMM from the IP compartment lamp connector cavity B (DK BLU) to the IP compartment lamp switch connector cavity B (DK BLU).

Is the resistance less than the specified value?

0.5 ohms

Go to Step 7

Go to Step 10

7

Replace the IP compartment lamp. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.

Is the IP compartment lamp replacement complete?

--

Go to Interior Lamps System Check

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8

Repair the open in CKT 450 (BLK) between the IP compartment lamp switch and S210. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Interior Lamps System Check

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9

Repair the open in CKT 149 (DK BLU/WHT) between the IP compartment lamp and C308. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Interior Lamps System Check

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10

Repair the open in CKT 148 (DK BLU) between the IP compartment lamp and the IP compartment lamp switch. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

--

Go to Interior Lamps System Check

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