Envoy 2WD V6-4.3L VIN W (1998)
Module (PCM). The message will allow the vehicle to start. Refer to Theft Deterrent Diagnostic System Check for more Passlock system information.
Power Door Lock/Unlock Function
The BCM is responsible for energizing the driver door unlock relay. The driver door unlock relay is energized whenever the BCM receives a command
from any of the DOOR LOCK/UNLOCK switches and an input from the RFA module on the RFA serial data line.
Remote Function Actuator (Rfa)
The RFA module is part of the remote keyless entry system. The RFA module sends a serial data message to the Body Control Module (BCM) through a
dedicated serial data line. The RFA module is not on the Class 2 serial data network.
The following commands are sent to the RFA module by the RFA transmitter (Key Fob):
^
The door lock and unlock control
^
The lift glass release
^
The panic alarm
The RFA module then sends a serial data message to the BCM in order to perform the appropriate function. Refer to Transmitter Programming for
programming of the RFA system.
Remote Illuminated Entry
The interior lights will illuminate for 40 seconds when one of the following buttons is pressed on the RFA transmitter:
^
UNLOCk
^
LIFT GLASS RELEASE
The interior lights will illuminate for 2 seconds when the LOCK button is pressed on the RFA transmitter.
Remote Lock
Press the RFA transmitter LOCK button once in order to lock all of the doors. If you press the RFA transmitter LOCK button twice within 3 seconds, all
of the doors will LOCK and the horn will CHIRP.
Remote Panic Alarm
The headlamps and the horn will activate if your press the HORN button on the RFA transmitter. Press the HORN button again in order to deactivate the
headlamps and the horn.
If you press the HORN button one time, the headlamps and the horn will activate for 30 seconds or until the ignition switch is turned to the RUN
position.
Remote Unlock
Press the RFA transmitter UNLOCK button once and the following actions will occur:
^
The driver door will UNLOCK.
^
The park lamps will FLASH.
^
The interior lights will turn ON.
Press the RFA transmitter UNLOCK button twice within 3 seconds and the following actions will occur:
^
All the remaining doors will UNLOCK.
^
The park lamps will FLASH.
^
The interior lights will turn ON.
Press the REAR button twice within 3 seconds and the following actions will occur:
^
The lift glass will UNLOCK.
^
The park lamps will FLASH.
^
The interior lights will turn ON.
Retained Accessory Power (RAP)
The RAP feature allows the following components to be operated after the ignition switch is turned from the RUN position to the LOCK position:
^
The power windows
^
The sunroof
^
The overhead console
^
The entertainment system
The RAP operates if the vehicle battery voltage is above the minimum voltage threshold when the ignition switch is in the OFF position.
The above components will be turned off when either of the following actions occurs:
^
A door is opened.
^
20 minutes elapses without an ignition switch transition.
Refer to Retained Accessory Power System.
Wake-Up State
The following wake-up signals will turn ON the BCM. The BCM can then begin active control and/or monitoring of certain devices:
