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TSB 18-017-04 REV. A

Flash: 3.7L Driveability And OBD II Monitor Improvements

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Date: June 15, 2004

Models: 2004 (DR) Ram Truck

2004 (AN) Dakota
2004 (DR) Ram Truck
2004 (KJ) Liberty / Cherokee

NOTE: This bulletin applies to vehicles equipped with a 3.7L engine (sales code EKG) and built on or prior to the following dates for each respective model: Dakota (AN) built on or prior to April 20, 2004 (MDH 0420XX), Liberty/Cherokee (KJ) built on or prior to April 01, 2004 (MDH 0401XX), or Ram Truck (DR) built on or prior to April 13, 2004 (MDH 0413XX).

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

Symptom/Condition:
This bulletin addresses one or more of the following conditions:

1.	Driveability (All Domestic and International Markets)
	a.	Eliminates stumble and hesitation when shifting between gears aggressively (this condition applies only to KJ with manual transmission).
2.	OBD II Monitor Improvement (All Domestic Markets and ONLY International Markets with OBD II Monitors - Europe)
	a.	Erroneous DTC P0116 - Engine Coolant Temperature Sensor Circuit Performance.
	b.	Erroneous DTC’s related to the Misfire Monitor.
	c.	Erroneous DTC’s related to the Oxygen Sensor Upstream or Downstream Monitors.
	d.	Erroneous DTC’s related to the Fuel System Upstream or Downstream Monitors.

Diagnosis:
Using a Scan Tool (DRBIII) with TechCONNECT or 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.

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 DRBIII connection. Use this cable whenever a flash is being performed.

Repair Procedure: 

NOTE: Whenever a controller is programmed, the software in the DRBIII must be programmed with the latest revision level available.

NOTE: If this flash process is interrupted/aborted, the flash should be restarted and then follow the directions on the DRBIII.

Most owners do not have access to the software and equipment required to program the ECM. To see the specific instructions, download the pdf version.

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 (Figure 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