2001 CHRYSLER VOYAGER automatic transmission

TEST ACTION APPLICABILITY
4 Turn ignition off.
Remove the Starter Relay from PDC.
WARNING: The Parking Brake must be on and the Transmission must be in
park for a vehicle equipped with an automatic transmission.
Warning: The engine may be cranked in the next step. Keep away from
moving engine parts.
Briefly connect a jumper wire between Starter Relay B+ circuit and the Starter Relay
Output Circuits.
Did the Starter Motor crank the engine?All
Ye s®Go To 5
No®Go To 8
5 Turn the ignition off.
Remove the Starter Relay from the PDC.
Turn the ignition on.
Using a 12-volt test light, probe the Ignition Switch Output circuit in the Starter
Relay connector.
While observing 12-volt test light, hold ignition key in the start position.
Does the test light illuminate brightly?All
Ye s®Go To 6
No®Repair the Ignition Switch Output circuit for an open or high
resistance.
Perform POWERTRAIN VERIFICATION TEST VER-1.
6 Turn the ignition off.
Remove the Starter Relay from the PDC.
Disconnect the PCM harness connector.
Measure the Starter Relay Control circuit between the Relay terminal and the PCM
harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 7
No®Repair the Starter Relay Control circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER-1.
7 Turn the ignition off.
Install a substitute a Relay in the of the Starter Motor Relay.
Attempt to start the vehicle.
Does the engine crank over?All
Ye s®Replace the Starter Motor Relay.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER-1.
259
STARTING
*NO CRANK CONDITION ÐContinued

AUTOMATIC SHUTDOWN RELAYCAV CIRCUIT FUNCTION
30 INTERNAL FUSED B(+)
85 K51 18BR/WT AUTOMATIC SHUTDOWN RELAY CONTROL
86 INTERNAL FUSED B(+)
87 K342 16BR/WT AUTOMATIC SHUTDOWN RELAY OUTPUT
87A --
ENGINE STARTER MOTOR RELAYCAV CIRCUIT FUNCTION
30 INTERNAL FUSED B(+)
85 T752 18DG/OR ENGINE STARTER MOTOR RELAY CONTROL
86 INTERNAL IGNITION SWITCH OUTPUT (START)
87 T750 12YL/GY ENGINE STARTER MOTOR RELAY OUTPUT
87A --
FUEL PUMP RELAYCAV CIRCUIT FUNCTION
30 INTERNAL FUSED B(+)
85 K31 18BR FUEL PUMP RELAY CONTROL
86 INTERNAL FUSED IGNITION SWITCH OUTPUT (RUN-START)
87 N1 16DB/OR FUEL PUMP RELAY OUTPUT
87A --
POSITIVE TEMPERATURE COEFFICIENTSCAV CIRCUIT FUNCTION
4 C16 20DB/GY FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
7 A105 18DB/RD FUSED B(+)
TRANSMISSION SAFETY SHUTDOWN RELAYCAV CIRCUIT FUNCTION
30 INTERNAL FUSED B(+)
85 Z115 20BK/OR GROUND
86 T15 18YL/BR TRANSMISSION CONTROL RELAY CONTROL
87 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
87A --
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CONNECTOR PINOUTS

1.0 INTRODUCTION
The procedures contained in this manual include
all of the specifications, instructions, and graphics
needed to diagnose 41TE/AE Electronic Automatic
Transaxle (EATX) problems. The diagnostics in this
manual are based on the failure condition or symp-
tom 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
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
This diagnostic procedures manual covers all
2001 RG equipped with a 41TE/AE transaxle.
1.2 SIX -STEP TROUBLESHOOTING
PROCEDURE
Diagnosis of the 41TE/AE 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
RG series vehicles equipped with a 4 speed trans-
mission.
3.0 SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
3.1 GENERAL DESCRIPTION
The 41TE/AE 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 41TE/AE electronic transaxle has a fully
adaptive control system. The system performs it's
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.
The Transmission Control Module (TCM) contin-
uously checks for electrical problems, mechanical
problems, and some hydraulic problems. When a
problem is sensed, the TCM stores a diagnostic
trouble code. Some of these codes cause the tran-
saxle to go into limp-in or default mode.
While in this mode, electrical power is taken
away from the transaxle via the TCM, de-
energizing the transmission control relay, and tak-
ing power from the solenoid pack. When this hap-
pens, the only transaxle mechanical functions are:
Park and Neutral
Reverse
Second Gear
No upshifts or downshifts are possible. The posi-
tion of the manual valve alone allows the three
ranges that are available. Although vehicle perfor-
mance is seriously degraded while in this mode, it
allows the owner to drive the vehicle in for service.
Once the DRBIIItis in the EATX portion of the
diagnostic program, it constantly monitors the
TCM to see if the system is in limp-in mode. If the
transaxle is in limp-in mode, the DRBIIIž will flash
the red LED.
3.2.1 AUTOSTICK FEATURE
This feature allows the driver to manually shift
the transaxle when the shift lever is pulled back
into the AutoStick position. When in AutoStick
mode, the instrument cluster displays the current
gear.
1
GENERAL INFORMATION

> Transmission Simulator (Miller # 8333)
> Transmission Simulator (Miller # 8333-1)
Adapter harness kit and panel overlay for FWD
vehicles.
> Jumper wires
> Test Light (minimum of 25 ohms of resistance)
> Ohmmeter
> Voltmeter
> Pressure gauge (0-300 PSI)
6.0 GLOSSARY OF TERMS
6.1 ACRONYMS
BCMBody Control Module
CKTCircuit
CVIClutch Volume Index
DLCData Link Connector
DRBIIItDiagnostic Readout Box
DTCDiagnostic Trouble Code
EATXElectronic Automatic Transaxle
EMCCElectronically Modulated Converter
Clutch
FCMFront Control Module (part of the
IPM system)
IODIgnition off-draw
IPMIntelligent Power Module
IRTIntelligent Recovery Timer
ISSInput Speed Sensor
LEDLight Emitting Diode
LRLow/reverse Clutch or Pressure
Switch
LULockupMICMechanical Instrument Cluster
MILMalfunction Indicator Lamp
OBDIIOn Board Diagnostics
ODOverdrive Clutch or Pressure
Switch
OSSOutput Speed Sensor
PCMPowertrain Control Module
PEMCCPartial Electronically Modulated
Converter Clutch
PLUPartial Lockup
REVReverse Clutch
SLPKSolenoid Pack
SSVSolenoid Switch Valve
SWSwitch
TCCTorque Converter Clutch
TCMTransmission Control Module
TPThrottle Position
TRDTorque Reduction
TRSTransmission Range Sensor
UDUnderdrive Clutch
2-42nd and 4th gear Clutch or Pres-
sure Switch
6.2 DEFINITIONS
OBDII (EURO STAGE III OBD) Trip - A vehicle
start and drive cycle such that all once per trip
diagnostic monitors have run.
Key Start - A vehicle start and run cycle of at least
20 seconds.
Warm-up Cycle - A vehicle start and run cycle
such that the engine coolant must rise to at least
71C (160ÉF) and must rise by at least 4.4C (40ÉF)
from initial start up. To count as a warm-up cycle,
no DTC may occur during the cycle.
21
GENERAL INFORMATION

DIAGNOSTIC JUNCTION PORT - BLACK 16 WAYCAV CIRCUIT FUNCTION
1 D25 20WT/VT PCI BUS (PCM/SKIM)
2 D25 20WT/VT PCI BUS (HVAC)
3 D25 20WT/VT PCI BUS (RADIO)
4 D25 20WT/VT PCI BUS (ORC)
5 D25 20WT/VT PCI BUS (CLUSTER)
6 D25 20WT/VT PCI BUS (BCM)
7 D25 20WT/VT PCI BUS (DLC)
8 D25 20WT/VT PCI BUS (OVERHEAD CONSOLE)
9 D25 20WT/VT PCI BUS (IPM)
10 D25 20WT/VT PCI BUS (LSIACM)
11 D25 20WT/VT PCI BUS (MEMORY SEAT/MIRROR)
12 D25 20WT/VT PCI BUS (PWR DOOR/ LT, RT LIFTGATE)
13 D25 20WT/VT PCI BUS (RSIACM)
14 - -
15 - -
16 - -
INPUT SPEED SENSOR (3.3L/3.8L) - GRAY 2 WAYCAV CIRCUIT FUNCTION
1 T13 18DG/VT SPEED SENSOR GROUND
2 T52 18DG/WT INPUT SPEED SENSOR SIGNAL
INTELLIGENT POWER MODULE C3 - NATURAL 20 WAYCAV CIRCUIT FUNCTION
1 Z115 20BK/OR (3.3L/3.8L) GROUND
2 F1 18PK/WT (3.3L/3.8L) FCM OUTPUT (UNLOCK-RUN-START)
3 T751 18YL (3.3L/3.8L) FUSED IGNITION SWITCH OUTPUT (START)
4 T2 18DG/WT TRS REVERSE SENSE
5 T16 18YL/OR (3.3L/3.8L) TRANSMISSION SAFETY SHUTDOWN RELAY OUTPUT
6 T15 18YL/BR (3.3L/3.8L) TRANSMISSION CONTROL RELAY CONTROL
7 C3 18DB/YL A/C COMPRESSOR CLUTCH RELAY OUTPUT
8 K31 18BR FUEL PUMP RELAY CONTROL
9 C13 18LB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
10 A104 18YL/RD (3.3L/3.8L) FUSE B(+)
11 - -
12 - -
13 D25 18WT/VT (3.3L/3.8L) PCI BUS (EATX)
14 T752 18DG/OR ENGINE STARTER MOTOR RELAY CONTROL
15 Z116 18BK/VT GROUND
16 K51 18BR/WT AUTOMATIC SHUTDOWN RELAY CONTROL
17 F202 18PK/GY IGNITION SWITCH OUTPUT (RUN-START)
18 K173 18BR/VT RADIATOR FAN RELAY CONTROL
19 F202 18PK/GY IGNITION SWITCH OUTPUT (RUN-START)
20 A109 18OR/RD FUSED B(+)
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CONNECTOR PINOUTS