DEFINITION: One or both headlamp opening door actuators are inoperative.

Has the Lighting Systems Diagnostic System Check been performed?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Remove and inspect the inoperative headlamp door actuator fuse for an open.

Is the fuse open?

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Go to Step 13

Go to Step 3

1. Disconnect the headlamp opening door actuator control module connector C1.
2. Connect a test light from the connector terminal:

•	B to ground (LH inop).

•	E to ground (RH inop).

Does the test light illuminate?

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Go to Step 4

Go to Step 12

1. Reconnect the headlamp opening door actuator control module connector C1.
2. Disconnect the inoperative headlamp opening door assembly connector.
3. Connect a test light between the harness side connector terminal A and ground.
4. Turn the headlamp switch on and off.

When the headlamp switch is turned off, does the test light illuminate?

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Go to Step 5

Go to Step 6

1. Connect a test light between the harness side headlamp opening door assembly connector terminal B and ground.
2. Turn the headlamp switch on.

When the headlamp switch is turned on, does the test light illuminate?

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Go to Step 11

Go to Step 7

1. Disconnect the headlamp opening door actuator control module connector C2.
2. Connect a DMM from the inoperative headlamp opening door assembly connector terminal A to the headlamp opening door actuator control module connector C2:

•	Terminal B (LH inop)

•	Terminal C (RH inop)

3. Measure the resistance of the door actuator up feed circuit.

Is the resistance within specified values?

0-2 ohms

Go to Step 7

Go to Step 8

1. Connect a DMM from the inoperative headlamp opening door assembly connector terminal B, to the headlamp opening door actuator control module connector C2:

•	Terminal A (LH inop)

•	Terminal D (RH inop)

2. Measure the resistance of the door actuator down feed circuit.

Is the resistance within specified values?

0-2 ohms

Go to Step 10

Go to Step 9

Repair the open or high resistance in circuit 577 (LH inop) or 579 (RH inop).

Is the repair complete?

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Go to Step 14

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Repair the open or high resistance in circuit 576 (LH inop) or 578 (RH inop).

Is the repair complete?

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Go to Step 14

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

Is the repair complete?

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Go to Step 14

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Replace the inoperative headlamp opening door actuator assembly. Refer to Headlamp Motor/Actuator Replacement .

Is the repair complete?

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Go to Step 14

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Repair the open or high resistance in circuit 2940 (LH inop) or 3040 (RH inop).

Is the repair complete?

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Go to Step 14

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Repair the short to ground in circuit 2940 (LH inop) or 3040 (RH inop).

Is the repair complete?

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Go to Step 14

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1. Clear any DTCs which may have set. Refer to Diagnostic Trouble Code (DTC) Clearing .
2. Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Diagnostic System Check - Lighting Systems