Voyager V6-229 3.8L (1996)
Technical Service Bulletin # 21-05-96A
Date: 961227
A/T - MIL ON/DTC's Set
NO: 21-05-96 Rev.A
GROUP: Transmission
DATE: Dec. 27, 1996
SUBJECT:
Reduced Transaxle Limp-In Default Sensitivity
NOTE:
THIS BULLETIN SUPERCEDES TECHNICAL SERVICE BULLETIN 21-05-96 DATED APRIL 26, 1996 WHICH SHOULD BE REMOVED
FROM YOUR FILES. FLASH SOFTWARE FOR THE NS/GS TRANSAXLE WITHOUT TRS IS NOW AVAILABLE. ALL CHANGES ARE
MARKED WITH **ASTERISKS**.
NOTE:
**A SUPPLEMENT (PUBLICATION NO. 81-699-96074) TO THE 1996 41TE/AE TRANSAXLE AND 1996 42LE TRANSAXLE
POWERTRAIN DIAGNOSTIC PROCEDURES MANUALS (PUBLICATION NO.'S 81-699-95014 AND 81-699-95015) HAS BEEN
RELEASED.** THE SUPPLEMENT PROVIDES IMPROVED AND ADDITIONAL DIAGNOSTIC INFORMATION THAT COVERS:
TRANSAXLE DIAGNOSTIC TROUBLE CODE (DTC) DESCRIPTION, TRANSMISSION DRIVEABILITY PROBLEMS WHEN NO DTC'S
ARE PRESENT, AND A DESCRIPTION OF TRANSMISSION OPERATION BASED ON TRANSMISSION OIL SUMP TEMPERATURES.
THE DIAGNOSTIC SUPPLEMENT ALSO APPLIES TO ALL 41TE/AE AND 42LE EQUIPPED VEHICLES WITH THE FOLLOWING
CALIBRATIONS:
1989-1994
UPDATED PER TSB 18-24-95 (DATED JUNE 23, 1995)
1995-1996
ALL
MODELS:
1996
(FJ)
Sebring/Avenger/Talon
1996
(GS)
Chrysler Voyager (European Market)
1996
(JA)
Cirrus/Stratus/Breeze
1996
(JX)
Sebring Convertible
1996
(LH)
Concorde/Intrepid/LHS/New Yorker/Vision
1996
(NS)
Town & Country/Caravan/Voyager
NOTE:
THE REPAIR SECTION OF THIS BULLETIN PROVIDES A SOFTWARE UPGRADE FOR THE TRANSMISSION CONTROL MODULE
(TCM) AND SHOULD ONLY BE USED AFTER THE APPROPRIATE MECHANICAL REPAIR HAS BEEN COMPLETED. THIS BULLETIN
DOES NOT REQUIRE ANY PARTS TO BE CHANGED. THE TCM IS NOT TO BE REPLACED FOR THIS SOFTWARE IMPROVEMENT,
IT IS TO BE FLASH UPDATED ONLY! THE TCM FLASH UPDATE OF THIS BULLETIN APPLIES TO 1996 MODEL YEAR VEHICLES
EQUIPPED WITH A 41TE/AE OR 42LE TRANSAXLE AND WITHOUT THE FOLLOWING TCM PART NUMBERS:
5293010
FJ
4686739
NS/GS WITH TRANSMISSION RANGE SENSOR (TRS)
**4882462
NS/GS WITHOUT TRS**
4606271
JA/JX WITH AUTOSTICK
4606270
JA/JX WITHOUT AUTOSTICK
4606485
LH WITH AUTOSTICK
4606284
LH WITHOUT AUTOSTICK
DISCUSSION:
A new TCM calibration has been released for vehicles built starting in mid-February and is being made available to flash update previous 1996 model
year 41TE/AE and 42LE applications. This new calibration will reduce the tendency for the transmission to go into the limp-in mode (2nd gear only in
OD, 3 or L, PRN03L positions) for selected intermittent Diagnostic Trouble Code (DTC) conditions (i.e. TCM DTC's 15, 22, 50, 51, 52, 53, 54, 56, 57
and 58).
Previous calibrations would result in an immediate limp-in mode condition when a DTC was sensed during key "ON", when vehicle speed was below 45
MPH.
This new calibration will always set DTC's as soon as an electrical, mechanical or hydraulic problem is identified but, the transaxle may not go into the