1. Turn the headlamp to the HEAD position.
2. Turn the headlamp dimmer switch to the LOW position.
3. Using a test light backprobe between C201 terminal E12 and ground.

Does the test light illuminate?

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Go to Step 2

Go to Step 5

1. Disconnect the underhood accessory wiring junction block connector C2.
2. Using a test lamp backprobe between the underhood accessory wiring junction block harness connector C2 terminal F8 and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

Replace the underhood accessory wiring junction block. Refer to Junction Block Replacement - Accessory Wiring in Body Front End.

Is the repair complete?

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Go to Daytime Running Lights (DRL) System Check

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Repair the poor connection or open in CKT 12 between C201 terminal E12 and the underhood accessory wiring junction block connector C2 terminal F8.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

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Replace the headlamp dimmer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in steering wheel and column.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

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