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TSB 18-015-03

Flash: Powertrain Control Module Shift Quality Improvements

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Date: Apr. 4, 2003

THE MDS2 MUST BE OPERATING WITH CIS CD2131 OR HIGHER, AVAILABLE APRIL 28, 2003.

Models: 2003 (DR) Ram Truck

Note: This bulletin applies to vehicles equipped with a 5.9L standard output Cummins diesel engine (sales codes ETC) and a 47RE automatic transmission (sales code DGP) built on or before Dec. 31, 2002.

Overview:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.

Symptom/Condition:
Vehicle operator may experience the vehicle will not shift out of third gear at throttle between 50% and 90% until 112 kph (70 mph).

Diagnosis:
Using a Scan Tool (DRBIII) with the appropriate Diagnostic Procedures Manual, verify all engine systems are functioning as designed. If DTCs are present other than those listed above, record them on the repair order and repair as necessary before proceeding further with this bulletin.

If the vehicle operator experiences the Symptom/Condition, perform the Repair Procedure.

Equipment Required:

NPN	Battery Charger
CH6000A	Scan Tool (DRB III)
CH2002	General Purpose Interface Bus Cable Assembly
CH7000/7001	J1962 Cable
	TechCONNECT Workstation

Parts Required:

Qty.	Part No.	Description
1	04669020	Label,   Authorized Software Update
1	04275086AB	Label,   Authorized Modification

Repair Procedure:

NOTE: WHENEVER A PCM/TCM IS REPLACED OR REPROGRAMMED, THE SOFTWARE IN THE CONTROLLER AND THE DRBIII MUST BE VERIFIED AS HAVING THE LATEST REVISION LEVEL.

1.    Connect the battery to a charger and set as close to 14 volts charge as possible.

2.    Flash the TCM using the TechCONNECT/MDS2 and DRBIII.

NOTE: DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (TCM, 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.

NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW.

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

FIGURE 1- AUTHORIZED SOFTWARE UPDATE LABEL

 4.  Type the following information on the "Authorized Modification Label" P/N 04275086AB and attach the label near the VECI label.

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

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:

Failure Code:

This page was edited on: May 3, 2004