GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Were you sent here from the Interior Lights System Check?

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Go to Step 2

Go to Interior Lamps System Check

2

  1. Disconnect the rear compartment lamp connector.
  2. Test for B+ at cavity 1 of the rear compartment lamp connector using a J 39200 .

Is B+ measured at cavity 1 of the rear compartment lamp connector?

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Go to Step 6

Go to Step 3

3

Does the dome lamp operate?

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Go to Step 4

Go to Step 5

4

Repair the open in the BLU/YEL wire between cavity 1 of the rear compartment lamp connector and cavity 9 of connector C5 of junction block 1. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Interior Lamps System Check

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5

Repair the open in the BLU/YEL wire between cavity 11 of connector C5 of fuse and relay block 1 and cavity 3 of connector C1 of junction block 1. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Interior Lamps System Check

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6

Test for continuity in the rear compartment lamp switch using a J 39200 .

Is there continuity in the rear compartment lamp switch?

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Go to Step 7

Go to Step 8

7

Repair the open in the RED/WHT wire between cavity 2 of the rear compartment lamp connector and the rear compartment lamp switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Interior Lamps System Check

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8

Replace the rear compartment lamp switch.

Is the replacement complete?

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Go to Interior Lamps System Check

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