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TSB 18-013-05 REV. A

Flash: Idle Fluctuation/Diagnostic Trouble Codes

Visit Geno's Garage for Truck accessories.

Date: April 19, 2005

THE StarSCAN FLASH FILES FOR THIS BULLETIN ARE AVAILABLE VIA THE INTERNET.

THE StarSCAN SOFTWARE UPDATE CD CONTAINS ALL PREVIOUSLY RELEASED
FLASH FILES PRIOR TO THE CD RELEASE DATE PRINTED ON THE CD LABEL.

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-013-05, DATED March 16, 2005,
WHICH SHOULD BE REMOVED FROM YOUR FILES.  

Models: 2004 - 2005 (DR/DH) Ram Truck

2004 - 2005 (HB) Durango
2004 - 2005 (DR/DH) Ram Truck

NOTE: This Bulletin Applies To Vehicle Equipped With 5.7L engines (Sales Code EZA)
built on or before Feb. 21, 2005 (MDH 0221XX).

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

Symptom/Condition:
The vehicle operator may experience rough idle or idle fluctuation or a MIL illumination. Further
diagnosis may determine that the MIL was caused by one or more of the following Diagnostic
Trouble Codes (DTC’s):

• DTC P0171 - Fuel System Lean - Bank 1
• DTC P0174 - Fuel System Lean - Bank 2

NOTE: If DTC’s P0171 or P0174 are present, check the long term fuel adaptives. If they
are over 33%, further hardware diagnostics are required. If they are under 33%
follow the Repair Procedure.

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

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

NOTE: There are three separate Repair Procedures. One for DR vehicles and two for
HB vehicles.

NOTE: There are two methods to download flash files to StarSCAN. The first
(preferred) method is to download the flash files to the StarSCAN from the
internet. The second method is to download the flash files from the StarSCAN
Software Update CD.

Parts Required:

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

Special Tools/Equipment Required:

NOTE: An updated J1962 cable has been released. This cable has a red colored
connector at the DRBIIIT connection. Use this cable whenever a flash is being
performed.

Repair Procedure: 

REPAIR PROCEDURE FOR VEHICLES USING DRBIII:

NOTE: Whenever a module is reprogrammed, the software in the DRBIIIT; must be
programmed with the latest revision level available.

NOTE: Due to the PCM programming 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. Check all modules using “Module Scan”,
record the DTC’s, and erase these DTC’s prior to returning the vehicle to the
customer. Erase any DTC’s in the PCM only after all other modules have had
their DTC’s erased.

NOTE: The following step is required by law.

Type the necessary information on the “Authorized Modification Label” p/n 04275086AB
and attach near the VECI label (Fig. 1).

FIGURE 1 - 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