2001 CHRYSLER VOYAGER torque

> 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

Symptom:
P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT
When Monitored and Set Condition:
P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT
When Monitored: During Electronically Modulated Converter Clutch (EMCC) Operation.
Set Condition: A) Transmission must be in EMCC, with input speed > than 1750 RPM.
TCC/L-R sol achieves the maximum duty cycle & can't pull engine RPM within 60 RPM of
input speed. B) Transmissions is in FEMCC & engine slips TCC > than 100 RPM for 10
seconds.
POSSIBLE CAUSES
RELATED DTC'S PRESENT
INTERMITTENT OPERATION
INCORRECT FLUID LEVEL
INTERNAL TRANSMISSION PROBLEM - TCC OUT OF RANGE
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
61
TRANSMISSION

TEST ACTION APPLICABILITY
2 Ignition on, engine not running.
With the DRBIIIt, read Transmission DTC's
Are the DTCs P0750 and/or P1784 present also?All
Ye s®Refer to symptom list for problems related to DTC P0750 and/or
P1784.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 Ignition on, engine not running.
With the DRBIIIt, record and erase Transmission DTCs.
Drive the vehicle until it is fully warmed up to at least 43.33É C or 110É F.
Perform the following steps 3 times.
With the DRBIIIt, monitor TPS degree.
Drive the vehicle to the speed of 83.45 Km/h or 50 MPH and allow 4th gear to engage
for at least 10 seconds.
Close the throttle, then tip back in until the throttle angle, TPS degrees, is between
25 and 29 degrees.
NOTE: If you go over 30 TPS degrees, you must back off of the throttle and
retry.
Did the TCC engage during any of the attempts?All
Ye s®Go To 4
No®Go To 5
4 The conditions necessary to set the DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wires while checking for shorts and open circuits.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
5 Check the Transmission Fluid level per the Service Information.
Is the Transmission Fluid level at the proper level?All
Ye s®Go To 6
No®Adjust the Transmission fluid level per the Service Information.
Repair the cause of the incorrect Transmission Fluid level.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 If there are no possible causes remaining, view repair. All
Repair
Repair internal transmission problem. Inspect the Valve Body per
service information and replace if necessary. If no problems are
found in the Valve Body, replace the Solenoid/Pressure switch
assembly. Replace the Torque Converter in either case
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
62
TRANSMISSION
P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT ÐContinued

Symptom:
P1793-TRD LINK COMMUNICATION ERROR
When Monitored and Set Condition:
P1793-TRD LINK COMMUNICATION ERROR
When Monitored: The transmission controller pulses the 12 volt TRD signal from the
PCM to ground, during torque managed shifts with the throttle angle above 54 degrees.
The TRD system is also tested whenever the vehicle is stopped and the engine speed is at
idle.
Set Condition: This code is set when the Transmission Control Module (TCM) sends two
subsequent torque reduction messages to the Powertrain Control Module (PCM) via the
TRD link circuit and does not receive a confirmation from the PCM over the communica-
tion bus.
POSSIBLE CAUSES
RELATED DTC'S PRESENT
INTERMITTENT WIRING AND CONNECTORS
TORQUE MANAGEMENT REQUEST SENSE CIRCUIT OPEN
TORQUE MANAGEMENT REQUEST SENSE SHORT TO GROUND
TORQUE MANAGEMENT REQUEST SENSE CIRCUIT SHORT TO VOLTAGE
PCM - TRD LINK
TCM - TRD LINK
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
130
TRANSMISSION

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTC's.
Are any of the following DTCs P1716, P0731, P0732, P0733, P0734, P1736 present
also?All
Ye s®If any of these codes are present, disregard the P1793 DTC and
refer to the symptom list for the other DTC'(s).
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIIt, Check the STARTS SINCE SET counter.
Note: This counter only applies to the last DTC set.
Is the STARTS SINCE SET equal to 0?All
Ye s®Go To 4
No®Go To 9
4 Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Torque Management Request Sense circuit from the
TCM harness connector to the PCM harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Torque Management Request Sense circuit for an
open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 5
5 Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Torque Management Request Sense
circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair Torque Management Request Sense circuit for a short to
ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Ignition on, engine not running.
Measure the voltage of the Torque Management Request Sense circuit in the TCM
harness connector.
Is the voltage above 10.5 volts?All
Ye s®Repair Torque Management Request Sense circuit short to volt-
age.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 7
131
TRANSMISSION
P1793-TRD LINK COMMUNICATION ERROR ÐContinued

TEST ACTION APPLICABILITY
7 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Ignition on, engine not running.
Measure the voltage of the Torque Management Request Sense circuit in the TCM
harness connector.
Is the voltage above 7.0 volts?All
Ye s®Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
8 If there are no possible causes remaining, view repair. All
Repair
Replace the Powertrain Control Module. Replace and program the
PCM Module in accordance with the Service Information.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
9 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring while checking for shorts and open circuits.
Were there any problems found?All
Ye s®Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
132
TRANSMISSION
P1793-TRD LINK COMMUNICATION ERROR ÐContinued

Symptom:
P1798-WORN OUT/BURNT TRANSAXLE FLUID
When Monitored and Set Condition:
P1798-WORN OUT/BURNT TRANSAXLE FLUID
When Monitored: With each transition from full Torque Convertor to partial Torque
Convertor engagement for A/C bump prevention.
Set Condition: When vehicle shudder is detected during partial engagement (PEMCC).
POSSIBLE CAUSES
WORN OUT/ BURNT TRANSMISSION FLUID
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC's. Check and repair all engine DTC's prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC's. Record all DTC's and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC's, check and record all CVI's.
Most DTC's set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB's related to the symptom.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
140
TRANSMISSION

TEST ACTION APPLICABILITY
2 Turn the ignition off.
Remove the Transmission Oil Pan and Oil Filter per the Service Information.
Install a new Transmission Oil Filter per Service Information.
Reinstall Transmission Oil Pan, and refill with new Transmission Fluid per the
Service Information.
Note: The Transmission Cooler must be flushed before prodceeding.
Start the engine, check and adjust the Transmission Fluid Level per Service
Information.
Allow the engine to idle for 10 minutes, in Park.
Flush the Transmission Oil Cooler per the Service Information.
Turn the ignition off.
Drain and refill the Transmission Fluid.
Flush the Transmission Oil Cooler again.
Start the engine, check and adjust the Transmission Fluid Level per Service
Information.
With the DRBIIIt, perform a Battery Disconnect.
Note: This must be done to re enable EMCC during an A/C Clutch engage-
ment.
The vehicle may exhibit intermittent shudder during the first few hundred miles.
Note: The oil will gradually penetrate the TCC friction material and the
shudder should disappear.
Erase the DTC and return the vehicle to the customer.
Did the Code reset or does the vehicle still shudder after a few thousand miles?All
Ye s®Replace the Torque Convertor per the Service Information. Note:
After replacing the Torque Convertor, use the DRBIII to perform
the TCC Break In procedure. This will prevent possible shudder
conditions.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Test Complete.
141
TRANSMISSION
P1798-WORN OUT/BURNT TRANSAXLE FLUID ÐContinued