DEFINITION: Use this diagnostic chart when the door lock function is inoperative when using the keyless entry transmitter. All other keyless entry functions operate normally.

Did you perform the Remote Keyless Entry System Check?

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

Press the door lock button on the transmitter.

Do the door locks operate normally?

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

Go to Step 3

Operate the door locks from the controls inside the vehicle.

Do the door locks operate normally?

Go to Step 4

Go to Diagnostic System Check - Door Systems in Doors

Important: Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter may pass this test, but will not activate the vehicle remote system.

1. Turn on the J 43241 Keyless Entry Tester.
2. Place the transmitter on the J 43241 test pad.
3. Press door lock button of the transmitter.

Does a tone sound and the green light illuminate on the J 43241 after the button is pressed?

Go to Step 5

Go to Step 7

Test the body control module (BCM) portion of the lock relay control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 6

Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 8

Replace the transmitter. Refer to Transmitter Programming .

Did you complete the replacement?

Go to Step 9

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Important: Perform the BCM programming procedure when replacing the BCM.

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3