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TSB 18-004-04

Flash: Poor Cab Heat and/or Slow Engine Warm Up in Cold Ambient Temperatures

Visit Geno's Garage
for Truck accessories.

Date: February 3, 2004

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-043-03 DATED DECEMBER 5, 2003, WHICH SHOULD BE REMOVED FROM YOUR FILES.

Models: 2004 (DR) Ram Truck

NOTE: This bulletin applies to DR vehicles equipped with a 5.9L Cummins Turbo Diesel engine (sales code ETC or ETH) and an automatic transmission, with an engine serial number 57130284 or earlier (Figure 1); and the engine date of manufacture on or before December 10, 2003.

FIGURE 1 - ENGINE DATA PLATE (2003 AND LATER SHOWN)

1–	ENGINE SERIAL NUMBER
2–	REFERENCE NUMBER
3–	DATE OF ENGINE MANUFACTURE

Overview:
This bulletin involves erasing and reprogramming the Cummins ECM with new software.

Symptom/Condition:
The vehicle operator may describe poor cab heat and/or slow engine warm up in cold ambient temperatures.

Diagnosis:
A new feature has been added that allows the vehicle operator to use the speed control switches to increase the engine speed up to 1500 rpm, to improve cab heat.

The feature must be enabled using the DRBIII

If the vehicle operator would like to have the feature enabled, perform the Repair Procedure.

Parts Required:

Qty. Part No. Description

1 04275086AB Label, Authorized Modification

Special Tools/Equipment Required:

NPN	Battery Charger
CH2002	General Purpose Interface Bus Cable Assembly
CH6000A	Scan Tool (DRBIII)
CH7000A	J1962 Cable with red DRBIIIT connector
	TechCONNECT PC

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:

1.
With the ignition switch in the “RUN” position, determine and record the “ECM part number” of the ECM currently in the vehicle. Using the DRBIIIT select:

a. "DRBIII Standalone"
b. "1998 - 2004 Diagnostics"
c. "All (Except Below)"
d. “Engine”
e. On 1998 1/2 - 2003 vehicles, select “Cummins”. 2004 and later vehicles, proceed to next step.
f. “Module Display”

2. If the “ECM part number” is 15235113AG, 15235133AG, 15305153AG, or a later revision to these part numbers, proceed to (STEP #3). If not, flash the Cummins ECM in accordance with TSB 18-030-03 Rev. A before proceeding to (STEP #3).

3.
With the ignition in the “RUN” position, using the DRBIIIT select:

a. "DRBIII Standalone"
b. "1998 - 2004 Diagnostics"
c. "All (Except Below)"
d. “Engine”
e. “Misc. Function”
f. “Idle Up Feature Enable”
g. Follow the on screen instructions.

Once enabled the feature operates as follows:

With the vehicle stationary and the gearshift lever in Park or Neutral, press the speed control “ON/OFF” switch to the “ON” position.
Press the “SET” switch. The engine speed will automatically increase to 1100 rpm.
The engine speed may be increased up to a maximum of 1500 rpm by pressing and holding the “ACCEL” switch.
The engine speed can be lowered down to 1100 rpm by pressing and holding the “COAST” switch .

The feature will be disabled and engine speed will return to idle if any of the following conditions are present:

The service brake is depressed.
The gearshift lever is moved out of “PARK” or “NEUTRAL”.
The engine senses vehicle speed.
The “ON/OFF” switch is in the “OFF” position.

Policy: Reimbursable within the provisions of the warranty.

Time Allowance:

Labor Operation No:	Description	Amount
08-19-52-93	Reprogram Powertrain Control Module	0.8 Hrs.

Failure Code:

FM	Flash Module

I would like to thank Bob Bergevin, Arthur Cantrall, Barry Drodge, David Lovell, Bill Maurits, and Steve for supplying the information for these bulletins. And a big thank you goes to Geno's Garage for making DodgeRam.info possible.

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This page was edited on: May 3, 2004

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