1. Turn the ignition switch to the RUN position
2. Turn the headlamp switch to the OFF position.
3. Using a test light, backprobe between the DRL control module harness connector C1 terminal F and ground.

Does the test light illuminate?

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Go to Step 2

Go to Step 10

1. Turn the SEO display switch to the ON position (if equipped).
2. Using a test light, backprobe between the DRL control module harness connector C1 terminal C and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

Using a test light, backprobe between the DRL control module harness connector C2 terminal L and ground.

Does the test light illuminate?

--

Go to Step 5

Go to Step 6

Has the repair been made?

--

Go to Headlight System Check

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Using a test light, backprobe the DRL control module harness connector C1 between terminal C and terminal G.

Does the test light illuminate?

--

Go to Step 7

Go to Step 8

Repair the poor connection or an open in circuit 41 between S233 and the DRL control module harness connector C2 terminal L.

Has the repair been made?

--

Go to Headlight System Check

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1. Disconnect the DRL ambient light sensor.
2. Attach a 3A fused jumper between the ambient light sensor harness connector terminal A and terminal B.

Do the high beam headlamps turn on?

--

Go to Step 9

Go to Step 15

Repair the a poor connection or an open in circuit 150 between the DRL control module harness connector C1 terminal G and G205.

Has the repair been made?

--

Go to Headlight System Check

--

Inspect the DRL ambient light sensor harness connector terminals A and B for a poor connection.

Is there a poor connection?

--

Go to Step 14

Go to Step 13

Inspect circuit 306 for a poor connection or an open.

Is there a poor connection in circuit 306?

--

Go to Step 11

Go to Step 12

Repair the poor connection or an open in circuit 306.

Has the repair been made?

--

Go to Headlight System Check

--

Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Has the repair been made?

--

Go to Headlight System Check

--

Replace the DRL ambient light sensor. Refer to Daytime Running Lamp (DRL) Ambient Light Sensor Replacement .

Has the repair been made?

--

Go to Headlight System Check

--

Repair a poor connection at the DRL ambient light sensor.

Has the repair been made?

--

Go to Headlight System Check

--

Replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement .

Has the repair been made?

--

Go to Headlight System Check

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