Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Vehicle Access Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

Activate the door lock switches to the lock and unlock positions.

Do both rear passenger doors lock and unlock?

Go to Step 3

Go to Symptoms - Vehicle Access

Is the liftgate lock actuator inoperative?

Go to Step 4

Go to Testing for Intermittent Conditions and Poor Connections

1. Disconnect the liftgate lock actuator.
2. With a test lamp connected to a good ground, probe the lock actuator lock circuit at the lock actuator harness connector.
3. Activate a door lock switch to lock position.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

1. With a test lamp connected to a good ground, probe the lock actuator unlock circuit at the lock actuator harness connector.
2. Activate a door lock switch to unlock position.

Does the test lamp illuminate?

Go to Step 6

Go to Step 8

Inspect for poor connections at the harness connector of the liftgate lock actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Repair the open the lock actuator lock circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 10

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Repair the open in the lock actuator unlock circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 10

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Replace the liftgate lock actuator. Refer to Liftgate Lock Actuator Replacement .

Did you complete the repair?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2