Normal Operation

The Remote Keyless Entry (RKE) feature is controlled by the Tire Pressure Monitor (TPM) module and the Body Control Module (BCM). When a button is pressed on an Integrated Keyhead Transmitter (IKT) the Transmitter Identification Code (TIC) and RKE command is received by the internal TPM antenna. If the TPM module determines that it is a valid and programmed TIC, it sends the RKE command and TIC to the BCM over the Medium Speed Controller Area Network (MS-CAN). When the BCM receives the RKE command, it carries out the command by controlling the door locks or activating the horn and turn signals for the panic alarm.

The BCM will disable the panic feature if the ignition key is in any position other than OFF or LOCK  .

• This pinpoint test is intended to diagnose the following:
• Door locks
• Factory remote start system (if equipped)
• Horn system
• Turn signal system
• IKT