NOTE: For 2003 model year, some vehicles
will
integrate
the
Transmission
Control
Module and Powertrain Control Module into a
single control module. This new module is
the
Next
Generation
Controller
for
DaimlerChrysler and will be referred to as the
Powertrain
Control
Module
(PCM).
The
Transmission Control Module is part of the
Powertrain Control Module.
New Diagnostic procedures and New DTC
numbers are some of the changes you will
see which reflect the new combined module
technology. The PCM will have four color
coded connectors C1 through C4, (C1-BLK,
C2-GRAY, C3-WHITE, C4-GREEN), each PCM
connector will have 38 pins each. Two new
tools are used for probing and repairing the
New PCM connectors. A New tool to release
the pins from the PCM connectors Miller
#3638 is introduced, you must use the Miller
tool #3638 to release the connector pins or
harness and connector damage will occur.
Also a New tool for probing connectors Miller
#8815 is introduced, you must use the Miller
tool #8815 to probe the PCM pins or harness
and connector damage will occur. There is
also a new Verification test and module
replacment procedure for the PCM.
3.6
DOOR AJAR SYSTEM
The door ajar and liftgate ajar states are used as
inputs for the Body Control Module (BCM). The
BCM uses these inputs to determine exactly what
position the doors and liftgate are in. The DRBIII
t
will display the state of the door ajar and the
liftgate ajar switches in Inputs/Outputs. It’s impor-
tant to note, that when any door, or the liftgate is
closed, the switch state on the DRBIII
t will show
OPEN. When any door, or the liftgate is open the
switch state on the DRBIII
t will show CLOSED.
During diagnosis, if a door or the liftgate is closed
and the DRBIII
t displays the switch state as
CLOSED, it indicates a shorted ajar circuit. If the
door or the liftgate is open and the DRBIII
t dis-
plays the switch state as OPEN, it indicates an
open ajar circuit.
12
GENERAL INFORMATION