Diesel Place banner

1 - 5 of 5 Posts

·
Registered
Joined
·
6,210 Posts
Discussion Starter #1
I took my truck in for a water pump replacement today. Service writer called and asked if I wanted to do the following reprogram.


"On-Board Diagnostic (OBD) System Software Upgrade-DTC P0128, Engine Coolant Temperature Below Thermostat Regulating Temperature (Reprogram Engine Control Module)"


Techs...Do I have any worrys about letting them do this?
 

·
Registered
Joined
·
1,240 Posts
They are supposed to do it without asking, It's kind of like a recall.
<H1>OBD System Software Upgrade-DTC P0128 Engine Coolant Temperature Below Thermostat Regulating Temperature (Reprogram Engine Control Module) #03063 - (12/17/2003)</H1>


On-Board Diagnostic (OBD) System Software Upgrade - DTC P0128, Engine Coolant Temperature Below Thermostat Regulating Temperature (Reprogram Engine Control Module)


2003 Chevrolet Silverado


2003 GMC Sierra


with 6.6L Duramax® Diesel Engine (VIN 1 -RPO LB7)


and with California Emissions (RPO YF5)


and built prior to and including the following VINs:


3E234666


3F180982<A name=ss1-1414938><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1414938&psdid=297&evc=sm#ss1-1414938" target="_blank">
<H5>Purpose</A></H5>


This bulletin provides information about installing new engine control module (ECM) calibration on certain 2003 vehicles equipped with the 6.6 liter Duramax® diesel engine. The revised calibration includes changes that allow for proper Malfunction Indicator Lamp (MIL) illumination when a P0128 DTC is stored. An updated calibration should be installed as soon as practical. Install the new calibration on all affected vehicles identified in this bulletin, including vehicles in new dealer inventory and any vehicles that return for service for any reason during the applicable 5 year 100,000 mile emission warranty coverage period. To verify if an updated calibration is required, refer to the following procedure in this bulletin.<A name=ss2-1414938><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1414938&psdid=297&evc=sm#ss2-1414938" target="_blank">
<H5>Service Procedure</A></H5>


Using A Tech 2 scan tool and TIS 2000, verify whether the calibration programmed into the vehicle[rsquo ]s ECM has been programmed with 15100899, 15100900 or later. The GM Vehicle Inquiry System (GM VIS) may be checked to see if the vehicle has been programmed since 15100899, 15100900 or the labor operation Y0001 has been claimed on the vehicle. If the 15100899, 15100900 or later updated calibration has not been installed or the Y0001 labor operation has not been claimed, reprogram the ECM with the latest updated calibration from TIS 2000 version 2.5 for 2003 data update or later.<A name=ss3-1414938><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1414938&psdid=297&evc=sm#ss3-1414938" target="_blank">
<H5>Warranty Information</A></H5>


For vehicles repaired under the applicable 5 year 100,000 mile emission warranty use:



<TABLE width="100%" border=1>
<T>
<TR>
<TH vAlign=bottom align=middle>


Labor Operation</TH>
<TH vAlign=bottom align=middle>


Description</TH>
<TH vAlign=bottom align=middle>


Labor Time</TH></TR>
<TR>
<TD vAlign=center align=middle>


Y0001</TD>
<TD vAlign=center align=middle>


Engine Control Module - Reprogram</TD>
<TD vAlign=center align=middle>


0.4 hr</TD></TR></T></TABLE>






<TABLE width="100%">
<T>
<TR>
<TD align=left width=778>GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
</TD>
<TD align=middle width=42>
</TD>
<TD align=middle width=167>WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION<B
 

·
Registered
Joined
·
6,210 Posts
Discussion Starter #3
My service writer is up too speed....at least where my truck is concerned
so he asks first. Bottom line in your opinion...you haven't seen it cause more problems than it fixes? So I should go ahead?
 

·
Registered
Joined
·
1,240 Posts
I have never done this one. It says it's for turning on the check engine light when p0128 sets, probably to comply with an emissions regulation. They are always updating and improving sofware, I haven't seen one yet that had bad effects.
 
1 - 5 of 5 Posts
Top