Hello,

Anyone has schematics, event partial, of the CarterPillar 1457805 diesel
motor control computer?

Jacques

"Jacques St-Pierre" wrote in message
news:n%Y5j.41276$Zn.19921@edtnps90...
Hello,

Anyone has schematics, event partial, of the CarterPillar 1457805 diesel
motor control computer?

Jacques




You won't find schematics for any kind of OEM ECU. You're on your own, open
it up and draw out a schematic of the relevant part.

On Thu, 06 Dec 2007 20:32:19 GMT, "Jacques St-Pierre"
wrote:

Hello,

Anyone has schematics, event partial, of the CarterPillar 1457805 diesel
motor control computer?

Jacques



Did you try asking Mr. Pillar? I here Carter is really a nice guy...
(I doubt that they will part with schematics or such, however)

What is this engine used for?

"Jacques St-Pierre" wrote in message
news:n%Y5j.41276$Zn.19921@edtnps90...
Hello,

Anyone has schematics, event partial, of the CarterPillar 1457805 diesel
motor control computer?

Jacques




The chances of getting ahold of that schemo are, let me check.... ZERO.
It's a replacable part, they don't WANT you to fix it, they want you to buy
a new one. I'm sure if you call Finning/Caterpillar they'll happily tell
you that their product designs are proprietary and that giving them out
would open them up to liability.

"Dave" wrote in message
news:t4h6j.41437$Zn.24796@edtnps90...

"Jacques St-Pierre" wrote in message
news:n%Y5j.41276$Zn.19921@edtnps90...
Hello,

Anyone has schematics, event partial, of the CarterPillar 1457805 diesel
motor control computer?

Jacques




The chances of getting ahold of that schemo are, let me check.... ZERO.
It's a replacable part, they don't WANT you to fix it, they want you to
buy a new one. I'm sure if you call Finning/Caterpillar they'll happily
tell you that their product designs are proprietary and that giving them
out would open them up to liability.

BTW, what model of diesel is it controlling, i.e. a 3306, etc?

BTW, what model of diesel is it controlling, i.e. a 3306, etc?

Not sure, I will check with my customer.

Bye
Jacques

You won't find schematics for any kind of OEM ECU. You're on your own,
open it up and draw out a schematic of the relevant part.

I know, I did try to draw it, but the PCB is multi layer and some traces are
hard to follow. I only need the supply section and the injector drive
section.


Bye
Jacques

"Jacques St-Pierre" wrote in message
news:Fbj6j.41455$Zn.14690@edtnps90...

You won't find schematics for any kind of OEM ECU. You're on your own,
open it up and draw out a schematic of the relevant part.

I know, I did try to draw it, but the PCB is multi layer and some traces
are hard to follow. I only need the supply section and the injector drive
section.



What are the symptoms? Just test the likely culprits in the affected areas.
Is power present on the power rails? Is the voltage appropriate? Are the
ouput transistors shorted? You can get datasheets easily for many individual
components and those will give you an idea of what you should expect to see.