Keyless Entry System Description and Operation: Notes

The keyless entry system is a supplementary vehicle entry device. Radio frequencies or discharged batteries may disable the system.

Keyless entry can operate the following components:

• The door locks
• The interior lamps
• The parking lamps
• The headlamps
• The puddle lamps (if equipped)
• The horn

The keyless entry system has the following main components:

• The transmitters
• The passenger door module (PDM)

The PDM communicates with the body control module (BCM) through the keyless entry serial data circuit. When you press a button on a transmitter, the transmitter sends a signal to the PDM. The PDM sends a request to the BCM and the BCM performs the appropriate function.