1. Turn the ignition to the OFF position.
2. Turn the headlamp switch to the OFF position.
3. Disconnect the Daytime Running Lamps (DRL) control module.
4. Using a test light, in probe between the DRL control module harness connector C1 terminal H and ground.

Does the test light illuminate?

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Go to Step 5

Go to Step 2

1. Reconnect the DRL control module.
2. Attach a 3A fused jumper between the DRL ambient light sensor harness connector terminal A and terminal B.
3. Turn the ignition switch to the RUN position.

Do the park lamps turn ON?

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Go to Step 3

Go to Step 4

1. Inspect for a poor connection or open in circuit 1137.
2. Inspect for a poor connection or an open in circuit 1138.
3. If OK, replace the DRL control module. Refer to Daytime Running Lights (DRL) Control Module Replacement .

Has the repair been made?

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Go to Daytime Running Lights (DRL) System Check

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

Has the repair been made?

--

Go to Daytime Running Lights (DRL) System Check

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1. Disconnect the headlamp switch connector.
2. Using a test light, probe between the headlamp switch connector terminal R and ground.

Does the test light illuminate?

--

Go to Step 6

Go to Step 7

Repair a short to B+ in circuit 9.

Has the repair been made?

--

Go to Daytime Running Lights (DRL) System Check

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Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Has the repair been made?

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Go to Daytime Running Lights (DRL) System Check

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