GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Interior Lights Schematics

1

Did you review the interior lighting operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

   • 

Place the dome lamp switch in the DOOR position.

   • 

Close the driver's door.

Is the dome lamp OFF?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Place the dome lamp switch in the OFF position.

Does the dome lamp illuminate?

Go to Step 6

Go to Step 4

4

   • 

Place the dome lamp switch in the DOOR position.

   • 

Disconnect the door jamb switch.

Does the dome lamp illuminate?

Go to Step 5

Go to Step 7

5

Repair a short to ground in the dome lamp control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 8

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6

Replace the dome lamp assembly. Refer to Dome Lamp Replacement .

Did you complete the replacement?

Go to Step 8

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7

Replace the door jamb switch. Refer to Front Side Door Jamb Switch Replacement .

Did you complete the replacement?

Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3