Chrysler Sebring 2004 Service Manual page 3108

1.0 INTRODUCTION
NOTE:
The 2004 JR model year vehicles, will use
both the standard
transmission and the new NGC controlled
transmission based
powertrain combinations.
NGC CONTROLLER
New for 2004 model year, JR vehicles will inte-
grate the Transmission Control Module and Power-
train 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).
Some of the changes you will see are several new
Diagnostics Trouble Codes and supporting diagnos-
tic procedures which reflect the new combined mod-
ule 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. Two new tools are used for probing and
repairing the new PCM connectors. Miller tool
#3638, and Miller tool #8815. Miller tool #3638 is
designed to release the pins from the PCM harness
connectors. You must use the Miller tool #3638 to
release the harness connector terminals or harness
connector or terminal damage will occur. Miller tool
#8815 was designed for probing the PCM harness
connectors. You must use Miller tool #8815 for prob-
ing the PCM terminals or damage to the terminal
will occur resulting in a poor terminal to pin connec-
tion. There are also new Verification tests and mod-
ule replacement procedures for the new PCM.
The procedures contained in this manual include
all of the specifications, instructions, and graphics
needed to diagnose,
*40/41TE (EATX) Electronic Automatic Transmis-
sion problems
*40/41TE (NGC) Electronic Automatic Transmis-
sion problems
The diagnostics in this manual are based on the
failure condition or symptom being present at the
time of diagnosis.
When repairs are required, refer to the appropri-
ate volume of the service manual for the proper
removal and repair procedure.
Diagnostic procedures change every year. New
diagnostic systems may be added and/or carryover
systems may be enhanced. READ THIS MANUAL
BEFORE TRYING TO DIAGNOSE A VEHICLE
TROUBLE CODE. It is recommended that you
review the entire manual to become familiar with
all new and changed diagnostic procedures.
This book reflects many suggested changes from
readers of past issues. After using this book, if you
EATX controlled
on the available
GENERAL INFORMATION
have any comments or recommendations, please fill
out the form at the back of the book and mail it back
to us.
1.1 SYSTEM COVERAGE
The diagnostic procedure manual covers all 2004
JR vehicles equipped with a 40/41TE transaxle.
1.2 SIX -STEP TROUBLESHOOTING
PROCEDURE
Diagnosis of the 40/41TE Electronic transaxle is
done in six basic steps:
verification of complaint
verification of any related symptoms
symptom analysis
problem isolation
repair of isolated problem
verification of proper operation
2.0 IDENTIFICATION OF
SYSTEM
The 40/41TE Transmission family can be identi-
fied through a visual inspection. Confirm the pre-
sense of a Solenoid/Pressure Switch Assembly,
Transmission Range Sensor, Input Speed Sensor
and Output Speed Sensor all located on the same
side of the transmission case. Refer to the Service
Information for transmission ID tag descriptions.
3.0 SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
3.1 GENERAL DESCRIPTION
The 40/41TE electronic transaxle is a conven-
tional transaxle in that it uses hydraulically ap-
plied clutches to shift a planetary gear train. How-
ever, the electronic control system replaces many of
the mechanical and hydraulic components used in
conventional transmission valve bodies.
3.2 FUNCTIONAL OPERATION
The 40/41TE electronic transaxle has a fully
adaptive control system. The system performs its
functions based on continuous real-time sensor
feedback information. The control system automat-
ically adapts to changes in engine performance and
friction element variations to provide consistent
shift quality. The control system ensures that clutch
operation during upshifting and downshifting is
more responsive without increased harshness.
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