RAM 2500 Truck 4WD L6-5.9L DSL Turbo VIN C (2004)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - Poor Heater Output/Slow Engine Warm-Up
NUMBER: 18-004-04
GROUP: Vehicle Performance
DATE: February 3, 2004
THE SOFTWARE WILL BE AVAILABLE ON TechCONNECT FEBRUARY 3, 2004.
SUBJECT:
Flash: Poor Cab Heat and/or Slow Engine Warm Up in Cold Ambient Temperatures
OVERVIEW:
This bulletin involves erasing and reprogramming the Cummins ECM with new software.
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 (Fig. 1); and the engine date of manufacture on or before **December 10, 2003**.
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(R).
If the vehicle operator would like to have the feature enabled, perform the Repair Procedure.