Schematic Reference: Interior Lights Dimming Schematics

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

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

1. Turn the ignition to the ON position.
2. Open a door or turn the headlamp switch to the DOME position.

Do the courtesy lamps turn ON?

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

Go to Step 3

Are all of the courtesy lamps inoperative?

Go to Step 4

Go to Step 5

1. Disconnect the connector C1 at the RH instrument panel (I/P) fuse block.
2. Connect a test lamp between to the courtesy lamps supply voltage at the RH I/P fuse block and ground.

Does the test lamp illuminate?

Go to Step 7

Go to Step 8

Test for a poor connection or an open in the courtesy lamp supply voltage circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 6

Repair a poor connection or an open in the courtesy lamp low control circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 9

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Repair a high resistance or open in the courtesy lamps supply voltage circuit. Refer to Wiring Repairs and to Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 9

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Replace the RH I/P fuse block. Refer to Instrument Panel Electrical Center or Junction Block Replacement - Right Side in Wiring Systems.

Did you complete the replacement?

Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2