The vehicle has a number of computers that record information about the vehicle's performance and how it is driven. For example, the vehicle uses computer modules to monitor and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy them in a crash, and, if equipped, to provide antilock braking to help the driver control the vehicle. These modules may store data to help the dealer technician service the vehicle.
Some modules may also store data about how the vehicle is operated, such as rate of fuel consumption or average speed. These modules may retain personal preferences, such as radio presets, seat positions, and temperature settings.
Immobilizer Description and Operation Immobilizer
K89Immobilizer Control ModuleK9Body Control ModuleP16Instrument ClusterK20Engine Control ModuleThe immobilizer system functions are provided by the body control module (BCM) andthe engine control module (ECM), as well as any control modules which store and reportthe environment identifier.When an ig ...