Monte Carlo V6-3.4L VIN E (2000)
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Feature customization of remote activation verification.
BCM Wake-Up/Sleep State
The BCM performs its functions in the wake-up state. The BCM enters the sleep state when active control or monitoring of system malfunctions has
stopped, or when the BCM is idling. The BCM must detect certain wake-up inputs before entering the wake-up state. The BCM monitors its inputs
during the sleep state, allowing the BCM to switch between the two states, awake or asleep.
The BCM enters the wake-up state when receiving activity on any of these inputs:
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I/P dimmer switch.
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Door lock (ajar) switch.
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Door lock switch.
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A keyless entry system signal.
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Inadvertent power (battery rundown) protection transition.
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The ignition is turned to the LOCK, ACCESSORY or the ON position.
The sleep state is when the BCM has stopped active control and monitoring of system functions and has become idle again. For the BCM to enter the
wake-up state, the BCM must detect a wake-up condition, mentioned previously. These conditions are called wake-up inputs that cause the BCM to
change from a sleep to a wake-up state and begin active control and monitoring. The BCM has the ability to monitor for these wake-up inputs in the
sleep state.
The BCM enters the sleep state when all of these conditions exist:
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No activity on the Class 2 serial data link.
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The ignition switch is in the OFF position.
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The BCM is not commanding any outputs.
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No delay timers are actively counting (during theft deterrent re-learn).
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No wake-up inputs are present.
Content Theft (UA6 Option)
The Body Control Module features a content theft deterrent system which is designed to defer vehicle vandalism and theft. The content theft deterrent
system performs these functions:
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Flashes the headlamps
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Sounds the horns
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Disables fuel delivery to the engine The BCM monitors the following:
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Status of the doors
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Lock cylinders
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Rear compartment lid
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Power door locks
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The keyless entry system
The BCM operates the headlamps, horns and the theft deterrent indicator, thats in the radio, according to the mode of operation the system is in. The
BCM also communicates a fuel enable signal to the Powertrain Control Module (PCM) when the system is armed. Refer to Content Theft Deterrent
(CTD) Operation in Theft Deterrent for more information.
RPO UA6: For a Description of RPO Code(s) shown in this article refer to the RPO Code List found at Vehicle/Application and ID See: Application
and ID/RPO Codes
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.
BCM Inputs
The following components provide direct input to the BCM, plus other systems can use this input information in order to carry out certain functions:
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A/C Request: Provides the BCM with a request signal to command the A/C compressor through the PCM via Class 2 serial data.
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BCM Ground: Provides ground for BCM operation.
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BCM Power: Provides voltage for BCM operation.
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Courtesy Lights On: Provides the driver the ability to request illumination of the vehicle interior.
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Crank Signal: Determines when the ignition switch is in the start position.
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Dome Lamp Switch Input: Determines when the dome lamp switch (Headlamp Switch) is closed to request the dome lamp on.
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Door Lock Switch: Door lock switch request to lock and unlock the vehicle doors.
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Door Locks: Provides voltage for door lock actuator operation.
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Door Open: Provides door ajar status.
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Driver Door Open: Allows certain chime functions when the driver's door is open.
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DRL Signal Low: This input provides the BCM with Information through an ambient light sensor for the DRL feature.
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Exterior Lamps Off: Determines when the headlamp switch is in the OFF position.
