1. Install a scan tool.
2. Turn ON the ignition switch.
3. Attempt to establish communications with the vehicle.

Does the scan tool communicate with the vehicle?

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Go to Step 2

Go to Data Link Communications System Check

Attempt to establish communications with the remote keyless entry module.

Does the scantool communicate with the RKE module?

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Go to Step 3

Go to Keyless Entry System Inoperative

Request the scan tool to display RKE DTC's.

Are any current RKE DTC's present?

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Go to Diagnostic Trouble Code (DTC) List/Type

Go to Remote Keyless Entry System Check