Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics

Did you perform the Lighting System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Turn ON the headlamps.
2. Ensure that the headlamp dimmer switch is in the HIGH position.

Do the high beams illuminate?

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

Go to Step 3

1. Leave the headlamp switch in the HEAD position.
2. Disconnect the headlamp dimmer switch.
3. Connect a fused jumper between the headlamp relay supply voltage circuit of the headlamp dimmer switch and the control circuit of the headlamp relay.

Do the high beams illuminate?

Go to Step 5

Go to Step 4

Install a fused jumper across the battery positive voltage supply circuit and the switched high beam voltage supply circuit.

Do the high beams illuminate?

Go to Step 6

Go to Step 7

Replace the headlamp dimmer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Column.

Did you complete the replacement?

Go to Step 8

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Replace the headlamp relay. Refer to Relay Replacement in Wiring Systems.

Did you complete the replacement?

Go to Step 8

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Replace the LH I/P fuse block.

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