GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Interior Lights Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step  2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Open and close the center console compartment.

Does the courtesy lamp console turn ON and OFF?

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

Go to Step  3

3

Disconnect the courtesy lamp switch console harness connector.

Does the courtesy lamp-console turn OFF?

Go to Step  5

Go to Step  4

4

Inspect for poor connections at the harness connector of the courtesy lamp console. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step  6

5

Inspect for poor connections at the harness connector of the courtesy lamp switch console. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 7

6

Locate and repair a short to ground in the courtesy lamp switch console voltage supply circuit between the courtesy lamp console and the courtesy lamp switch console. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 8

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7

Replace the courtesy lamp switch console.

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  1