ECM flashing/Programing, is it magic

[SilverMoose]

That's pretty impressive @Chris O.  

 

L8tr

d

[Dieselfuture]

 For some reason this site attracts all the smart people for the most part... and yet somehow I feel getting dumber every year, it may even be on daily basis  it's one of them the more you know the less you know. 

[Chris O.]

Ok so let's get back to the topping of this thread and get the conversation going! Oh 

ECM flashing/Programing, is it magic

The first thing you should do is find or purchase the SAE J2610-2002 Serial Data Communication Interface publication.

 

The purpose of this SAE Information Report is to specify the requirements necessary to fully definethe Serial Data Communication Interface (SCI) used in the reprogramming of emission-related powertrain Electronic Control Units (ECU) in DaimlerChrysler Corporation (Chrysler Group) vehicles. 

 

trust me after reading that you will be a lot smarter 

 

[GSP7]

http://standards.sae.org/j2610_200204/

 

Who's got it? 

[Chris O.]

 

36 minutes ago, GSP7 said:

Who's got it? 

SAE J2610 Issued APR2002 -17-
9.4 Flash Strobe-The diagnostic tester shall be required to generate the external Vpp flash strobe voltage necessary for erasing and programming on-board memory devices. The Vpp flash strobe voltage is needed to support the following four functions: 
a.Initiating ECU boot-loader mode 
b.Reading flash memory electronic signature (manufacturer and device codes)
c.Erasing flash memory 
d. Programming flash memory 

9.4.1 VPP SPECIFICATION-The diagnostic tester shall generate the Vpp flash strobe voltage multiplexed on the tester SCI transmit line. The requirements for the programmable power supply shall be defined as follows in Figure 13:

I can't post pictures because of this:

You have used all of the attachment space you are allowed. Manage Attachments to free up space

Edited December 9, 2017 by Chris O.

[01_Cummins_4x4]

@Chris O. I had my friend's Snap-On SOLUS Edge scanner hooked up to my 99 Dodge Cummins this evening and I told it to automatically ID my pickup, which it did. But the VIN on the ECM is different than the VIN of my pickup, so I need to get the numbers off the ECM that is on the motor. I'm thinking that this ECM is my issue with the WTS delay, cruise control not working, and my seat belt light staying on even after I've latched the seat belt.

 

Will your tool be able to change the VIN on the ECM and install the appropriate software according to the VIN?

 

 

Edited December 10, 2017 by 99_Cummins_4x4

[GSP7]

99 cummins

How long have you owned your '99 truck?

 

'99s have that stupid seat belt controller / timer/ module under the center console seat......

Edited December 10, 2017 by GSP7

[01_Cummins_4x4]

I just got this 99 2 weeks ago. My other 99 never had this seat belt light issue.

 

Is there a cruise control fuse somewhere on these Cummins pickups, and if so, which fuse is it and where is it located?

Edited December 10, 2017 by 99_Cummins_4x4

[jlbayes]

On 12/9/2017 at 11:40 PM, 99_Cummins_4x4 said:

I just got this 99 2 weeks ago. My other 99 never had this seat belt light issue.

 

Is there a cruise control fuse somewhere on these Cummins pickups, and if so, which fuse is it and where is it located?

 

What year is the vin in the ecm? Better yet what is the last 8 of the vin in the ecm.

[GSP7]

20 minutes ago, jlbayes said:

 

What year is the vin in the ecm? Better yet what is the last 8 of the vin in the ecm.

 

How do you find out what the Vin# in the ECM is ?

[jlbayes]

A scan tool.

[GSP7]

Duh..jlbays

 

Anyone know if my Actron OBD ll scan tool will show the Vin# in the ECM  by its self some how?

 

Ive never seen the Vin # displayed

 

 

 

 

Edited December 12, 2017 by GSP7

[GSP7]

,

Edited December 12, 2017 by GSP7

[01_Cummins_4x4]

10 hours ago, jlbayes said:

 

What year is the vin in the ecm? Better yet what is the last 8 of the vin in the ecm.

My VIN of my pickup is 1B7KF2369XJ553768, and the ECM VIN is 1B7KC2368XJ503078.

 

I ran them both, and the ECM VIN is a 99 Dodge Ram 2500 Cummins, SLT, with all the same options as my pickup, except the ECM truck was 2wd, had a posi, and it didn't have a security alarm. 

 

Mine is 4wd, has a security alarm, but doesn't have a posi. 

[GSP7]

'99

 You have the "ignition on,, ecm boot up delay"?  That is exactly what my Truck has been doing

 

How many seconds is the delay until the WTS light and lift pump comes on?

 

 

 

[01_Cummins_4x4]

It varies. Sometimes it's right away, and if I shut the truck off and go to start it again, I have to wait for the WTS light to come on again before the engine will start. Sometimes it's like a 10 second or so delay.

[jlbayes]

9 hours ago, 99_Cummins_4x4 said:

My VIN of my pickup is 1B7KF2369XJ553768, and the ECM VIN is 1B7KC2368XJ503078.

 

I ran them both, and the ECM VIN is a 99 Dodge Ram 2500 Cummins, SLT, with all the same options as my pickup, except the ECM truck was 2wd, had a posi, and it didn't have a security alarm. 

 

Mine is 4wd, has a security alarm, but doesn't have a posi. 

 

In your case the mismatch is fine unless emissions testing cares. At that point it is a simple flash update using a tool capable of flashing the ecm. 

[GSP7]

30 minutes ago, jlbayes said:

 

update using a tool capable of flashing the ecm. 

 

A magical mystery capable tool !

[jlbayes]

Yea so magical and mysterious a DRB III is.