Keyless Entry System Description and Operation: Notes
WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The keyless entry system is a supplementary vehicle entry device. Radio frequencies or discharged batteries may disable the system.
Keyless entry allows you to operate the following components:
- The door locks
- The rear compartment lid release
- The illuminated entry lamps
- The panic alarm (instant alarm)
The keyless entry system has the following main components:
- The transmitters
- The body control module (BCM)
When you press a button on a transmitter, the transmitter sends a signal to the BCM. The BCM interprets the signal and activates the requested function.