After ignition switch is turned off and 20 minutes elapse without any wake up signals, Body Control Module
(BCM) enters an asleep state and goes into low power mode. Wake up signals turn BCM on to begin controlling
and/or monitoring of certain functions. BCM wake-up inputs are as follows:
Dome light.
Door ajar switches.
Door handle switches.
Ignition key put into ignition switch.
Ignition key removed from ignition switch.
Interior light request active.
Ignition turned on.
Key in door lock switch.
Liftgate jamb switch
Liftgate release switch.
Parking lights.
Power door lock switches.
Remote transmitter request to BCM.
AUDIBLE WARNINGS (CHIME)
When BCM determines a driver warning chime is needed, BCM will sound chime when applicable.
BATTERY RUNDOWN PROTECTION
BCM helps to prevent inadvertent battery rundown from situations such as courtesy lights left on. BCM will
turn off courtesy light circuit after ignition has been off for 20 minutes and no light request input has been
received.
DOOR LOCK/UNLOCK SWITCH FUNCTION
Driver's and passenger's door lock/unlock switches are inputs to BCM. BCM will command door lock relay to
unlock driver's door according to state of driver's or passenger's door lock switch.
DRIVER WARNING TELLTALES
BCM activates seat belt telltale in instrument cluster.
EXIT LIGHTING
Interior lights will illuminate for 40 seconds when ignition key is removed from ignition switch.
ILLUMINATED ENTRY
Interior lights will illuminate for 15 seconds when any door is opened and closed.
2000 Cadillac Escalade
2000 ACCESSORIES & EQUIPMENT' 'Body Control Modules - Escalade, Tahoe & Yukon Denali
Microsoft
October-22-10 7:55:08 PM Page 2 ©
2005 Mitchell Repair Information Company, LLC.
