Module Information 1
Julian Date of Build: The scan tool displays the date
upon which the Body Control Module (BCM) was manufactured.
Manufacture Enable Counter (MEC): The scan tool displays
the actual value for the MEC in the BCM. This information is for the assembly
plant only.
Module Part Number: The scan tool displays the part
number assigned to the BCM that is currently in the vehicle.
Software Design Suffix: The scan tool displays the version
of the software part number in the BCM.
Software Part Number: The scan tool displays the software
identification number (ID) in the BCM.
Module Information 2
Retained Accessory Power (RAP) Calibration Number: The scan tool displays the RAP calibration part number in the BCM.
Retained Accessory Power (RAP) Suffix: The scan tool
displays the RAP identification number in the BCM.
Security Calibration Number: The scan tool displays
the security calibration part number in the BCM.
Security Suffix: The scan tool displays the security
identification number in the BCM
Data
Battery Voltage: The scan tool displays the battery
system voltage.
Retained Accessory Power (RAP) Timer: The scan tool
displays the seconds left before the BCM turns the RAP relay OFF. The BCM
uses this feature to allow the operation of the radio and the power windows
for up to 1198 seconds, approximately 20 minutes, after the ignition is
turned OFF. After the time has elapsed or the door is opened the BCM will
open the ground circuit for the RAP relay.
Input 1
Door Handle Switch: The scan tool displays the position
of the door handle. The scan tool displays ACTIVE when a door handle is raised
and INACTIVE with all doors closed and the door handles at rest.
Door Lock Relay Feedback: The scan tool displays the
state of the door lock relay. The scan tool displays ON when the BCM senses
the door lock relay coil is energized.
Drivers Door Jamb Switch: The scan tool displays the
position of the drivers door. The scan tool displays ACTIVE when the drivers
door is open.
Ignition 1: The scan tool displays the position of the
ignition switch. The scan tool displays ACTIVE when the ignition switch is
in the RUN or CRANK position.
Ignition 3: The scan tool displays the position of the
ignition switch. The scan tool displays ACTIVE when the ignition switch is
in the RUN position only.
Ignition Power Mode: The scan tool displays the position
of the ignition switch. The scan tool displays OFF, RUN, CRANK and UNKNOWN.
The UNKNOWN display is when the BCM can not determine the position of the
ignition switch, between the OFF and RUN positions.
Last Remote Function Actuation (RFA) Command Since Wake-Up: The scan tool displays the last RFA commanded message from the BCM.
The scan tool displays NONE when the BCM awakens from asleep status without
receiving a RFA module request from a programmed key fob. The scan tool
displays LOCK, UNLOCK or PANIC when the BCM is awake and a command is activated
from the key fob to the RFA module.
Passenger Door Unlock Input: The scan tool displays
the state of the passenger door unlock relay. The scan tool displays ACTIVE
when the BCM senses that the passenger door unlock relay is being energized.
Remote Function Actuation (RFA) Message Since Wake-Up: The scan tool displays the last message sent to the BCM from the remote control
door lock receiver.
Retained Accessory Power (RAP) Relay Feedback: The scan
tool displays the state of the RAP relay. The scan tool displays ON when
the BCM activates the RAP relay.
Outputs
Door Lock Relay: The scan tool displays the commanded
state of the door lock relay. The scan tool displays ON when the keyless
entry transmitter LOCK button or the power lock switch is activated. The
BCM allows the door lock relay coil to go to ground, locking the doors.
Driver Door Unlock Relay: The scan tool displays the
commanded state of the driver door unlock relay. The scan tool displays ON
when the keyless entry transmitter UNLOCK button or the power unlock switch
is activated. The BCM allows the driver door unlock relay coil to go to
ground, unlocking the doors.
Passenger Door Unlock Relay: The scan tool displays
the commanded state of the passenger door unlock relay. The scan tool displays
ON when the BCM allows the passenger door unlock relay to go to ground
to UNLOCK the passenger door(s). The BCM will command this state when the
UNLOCK button on the keyless entry transmitter is activated twice within
3 seconds.