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. Turn the headlamp switch to the PARK position.
3. Turn the instrument panel (I/P) dimmer switch to a LOW position.

Do the I/P lamps dim?

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

Go to Step 3

1. Turn the ignition to the OFF position.
2. Turn the headlamp switch to the OFF position.
3. Turn the I/P dimmer switch to a LOW position.

Are the I/P lamps ON?

Go to Step 4

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

Are the park lamps ON?

Go to Park Lamps Always On

Go to Step 5

Disconnect the headlamp switch.

Are the I/P lamps ON?

Go to Step 6

Go to Step 7

Repair a short to battery positive voltage in the instrument panel lamp supply voltage circuit. Refer to Wiring Repairs and to Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 8

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Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Did you complete the replacement?

Go to Step 8

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2