Monte Carlo V6-3.4L VIN E (2000)
match, the BCM sends a fuel enable password via the Class 2 serial data link to the Powertrain Control Module (PCM). As a result, the PCM enables the
crank relay, and allows fuel delivery to the engine.
When attempting to start the engine by means other than using the proper key in the ignition switch, the Passlock sensor sends an analog voltage signal
of a different value. The BCM compares the preset stored analog voltage value with the signal coming from the sensor. Because both values do not
match, the BCM sends a fuel disable password via the Class 2 serial data link to the Powertrain Control Module (PCM). As a result, the PCM disables
the crank relay, and does not allow fuel delivery to the engine.
Power Requirements
The BCM has three main voltage feeds and two grounds. The voltage feed circuits are used to provide power for the BCM's logic, courtesy lights,
internal driver operation and the door locks.
Retained Accessory Power (RAP)
The Accessory Power (RAP) feature allows the operation of the following functions for 10 minutes (or until a vehicle door opens) after the ignition
switch has been turned from the ON or ACCESSORY position to the LOCK position:
^
The radio
^
The power windows
^
The power sunroof (if equipped)
Refer to Keyless Entry System Operation in Retained Accessory Power (RAP) for more information.
