Did you perform the Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Close both doors.
2. Close the rear compartment lid.
3. Turn the IP dimmer switch to the OFF position.
4. Ensure that the vehicle was not unlocked using the keyless entry function.

Do the courtesy/reading lamps remain off?

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

Go to Step 3

Are all of the courtesy lamps on at all times?

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Go to Courtesy Lamps Always On

Go to Step 4

Replace the inside rearview mirror. Refer to Inside Rearview Mirror Replacement .

Did you complete the repair?

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Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3