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TSB 18-014-03

Flash, MIL Illumination, Erroneous Diagnostic Trouble Codes (DTCs).

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Date: Apr. 4, 2003

This bulletin is being provided in advance. 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 an 8.0L engine (sales codes EWA) equipped with a 47RE (sales code DGP) automatic transmission built on or before Mar. 25, 2003 (MDH 0325XX).

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

Symptom/Condition:
Vehicle operator may experience MIL Illumination.

Technicians may find the following DTC(s):

P0300 - Multiple Cylinder Misfire.
P0301 - Cylinder #1 Misfire.
P0302 - Cylinder #2 Misfire.
P0303 - Cylinder #3 Misfire.
P0304 - Cylinder #4 Misfire.
P0305 - Cylinder #5 Misfire.
P0306 - Cylinder #6 -Misfire.
P0307 - Cylinder #7 Misfire.
P0306 - Cylinder #8 Misfire,
P0309 - Cylinder #9 Misfire.

Technician may find freeze frame data indicating engine rpm greater than 3,000 rpm.

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 or the technician experiences any of the Symptom/Conditions, 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 - TRANSMISSION 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:
Labor Operation No:  08-19-36-90  Preprogram Transmission Control Module ....................0.5 Hrs.

Failure Code:  FM - Flash Module

This page was edited on: May 3, 2004