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TSB 18-030-01

46RE Shift Quality & Durability Improvements

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Date: December 21, 2001

THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2099 OR HIGHER, AVAILABLE JANUARY 7, 2002.

Models: 2002 DR Ram Truck

1999 AB Ram Van
1999 AN Dakota 1999
1999 BE/BR Ram Truck
1999 DN Durango

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH THE 46RE TRANSMISSION.

Discussion:

This bulletin involves selectively erasing and reprogramming the JTEC Powertrain Control Module (PCM) with new software (99Cal19B).

Symptom/Condition:

A change has been made to the PCM software to improve the durability of the transmission internal friction components when certain Drive-Reverse-Drive shift maneuvers are made which are associated with, but not limited to, snow plowing activities.

Parts Required:
Qty. Part No. Description
1 04669020 Label, Authorized Software Update
1 04275086 Label, Authorized Modification

Equipment Required:
CH6000 Scan Tool   (DRB III)
CH7035 General Purpose Interface Bus Cable (GPIB)
CH7000/7001 J1962 Cable
  MDS2 (Mopar Diagnostic System)

Repair Procedure: 

1. Log onto the MDS2 (Mopar Diagnostic System).

2. Connect the MDS2 and DRBIII to the vehicle and switch the ignition key to"ON".

NOTE: AUTO CONNECTION WILL OCCUR ONCE THE DRB III, MDS2, AND VEHICLE ESTABLISH COMMUNICATION. THE "CANNOT READ VIN FROM DRB III" MESSAGE (ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE "OK" BUTTON ON THE MDS2 TO REQUEST A L4DS2 SESSION FOR THE VEHICLE VIN INDICATED. PRESS THE "OK"BUTTON WHEN ASKED TO BEGIN SESSION.

3. Push the FLASH tab on the MDS2.

4. Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2.

NOTE: A MESSAGE MAY APPEAR (AFTER STEP 3 OR 4) THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.

5. Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE.

6. The MDS2 and DRB III will prompt for any operator action needed during the remainder of the reprogramming process.

NOTE: DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (EATX, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE. ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED.

7. Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Fig. 1). Attach the label to the PCM and cover the label with the clear plastic overlay.

8. Type the necessary information on the "Authorized Modification Label" p/n 04275086 and attach the label near the VECI label (Fig. 2).

 
1 - POWERTRAIN CONTROL MODULE P/N (INSERT P/N) USED
2 - CHANGE AUTHORITY: TSB XX-XX-XX
3 - DEALER CODE: XXXXX
4 - DATE: XX-XX-XX

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:
Labor Operation No:    
08-19-49-95 Reprogram Powertrain Control Module 0.5 Hrs.

Failure Code:
FM Flash Module

 


Thanks to Bob Bergevin for supplying this TSB information

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This page was edited on: May 3, 2004