Keyless Entry System Description and Operation: Notes
WARNING: This page is about a different car, the 2004 Pontiac Grand Am and 2004 Oldsmobile Alero. 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 frequency interference or discharged batteries may disable the system.
Keyless entry allows you to operate the following components:
- The door locks
- The rear compartment lid release (Press and hold rear release button for greater than 1.5 seconds to activate).
- 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)
- The remote control door lock receiver (RCDLR). When you press a button on the transmitter, the transmitter sends a signal to the RCDLR. The RCDLR receives the signal and sends a class II serial data message requesting the appropriate function from the BCM.