Schematic Reference: Headlight Doors Schematics

Connector End View Reference: Master Electrical Component List

Did you perform the Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Turn the headlamps ON and OFF.

Do the headlamp doors open and close?

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

Go to Step 3

Is only one headlamp door inoperative?

Go to Step 9

Go to Step 4

Are the headlamp doors closed at all times?

Go to Step 5

Go to Step 7

1. Remove the right hand headlamp assembly.
2. Disconnect the control module connectors C1 and C2 to the actuator for the headlamp opening door.
3. Turn the headlamps ON.
4. Connect a test lamp between the headlamps ON input circuit and ground at connector C1. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

Go to Step 6

Go to Step 14

Connect a test lamp between the headlamps ON input circuit and the headlamp door control module ground circuit.

Does the test lamp illuminate?

Go to Step 12

Go to Step 15

1. Turn OFF the headlamp switch.
2. Disconnect the headlamp door control module.
3. Using a test lamp, probe between the headlamp OFF input circuit and ground.

Does the test lamp illuminate?

Go to Step 12

Go to Step 8

1. Disconnect connector C209.
2. Using a test lamp, probe between the headlamp OFF input circuit (female side) and ground.

Does the test lamp illuminate?

Go to Step 16

Go to Step 13

1. Disconnect the headlamp door control module.
2. Using a test lamp connected to ground, probe the inoperative headlamp door motor fused battery positive voltage supply circuit.
3. Turn the ignition to the ON position.
4. Turn the headlamps ON.

Does the test lamp illuminate?

Go to Step 10

Go to Step 17

Test the inoperative headlamp door assembly motor up and down circuits for a short to ground, short to battery positive voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and complete the repair?

Go to Step 21

Go to Step 11

Inspect the harness connector for headlamp opening door assembly for a poor connection. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and complete the repair?

Go to Step 21

Go to Step 18

Inspect the harness connector for headlamp door control module for a poor connection. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and complete the repair?

Go to Step 21

Go to Step 19

Inspect the harness connector for multifunction turn signal lever for a poor connection. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and complete the repair?

Go to Step 21

Go to Step 20

Repair a poor connector or an open in the headlamp ON input circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 21

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Repair a poor connector or an open in the ground circuit of the headlamp door control module. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 21

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Repair a short to battery positive voltage in the headlamps OFF input circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 21

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Repair a short to ground or an open in the inoperative headlamp door battery supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 21

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Replace the headlamp opening door assembly. Refer to Headlamp Opening Door Replacement .

Did you complete the replacement?

Go to Step 21

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Replace the headlamp control module. Refer to Headlamp Control Module Replacement .

Did you complete the replacement?

Go to Step 21

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Replace the multifunction turn signal lever. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 21

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2