Connecting to a ECU without a Car

Multiecuscan usage help and guides
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aaron92
Posts: 16
Joined: 23 Mar 2012, 21:03

Connecting to a ECU without a Car

Post by aaron92 »

Hello! I've purchased the license long time ago, and i'm very grateful to the owners because it help me a lot in my work (Electric powered steering technician). Now i'm about to renew it for new updates, but i got a new question :D

I need to diagnose the Electric power steering ECUS from some Fiat Cars (Fiat panda, Grande punto, punto, etc..) with the modules DISCONNECTED from the car, here i need some help!
I got:
- Electronic Fuchs ELM327 Bluetooh interface
- Adapters (Yellow, Green and red)
- "FiatEcuScan"
- A FIAT G. PUNTO EPS system like that:
Image

With this connectors:
Image

My question is, can i diagnose it without having the car? I mean whith the correspondient pins from ELM327 connected to battery, ground, and can bus lines!?

Thanks in advance!! :P
Alfaeddy
Posts: 1350
Joined: 19 Feb 2011, 17:43
Location: Germany , Aarbergen

Re: Connecting to a ECU without a Car

Post by Alfaeddy »

Hello Aaron92

Merry Christmas

This should work but relatively easy

Connector A connecting 12 volts and minus
at the interface 12 volts on pin 16 and minus to pin 4 + 5

And the plug B to terminal 7 to pin 6 of the ELM Interface
and the terminal 8 to pin 14 of the ELM Interface



Greetings Eddy
aaron92
Posts: 16
Joined: 23 Mar 2012, 21:03

Re: Connecting to a ECU without a Car

Post by aaron92 »

Alfaeddy wrote:Hello Aaron92

Merry Christmas

This should work but relatively easy

Connector A connecting 12 volts and minus
at the interface 12 volts on pin 16 and minus to pin 4 + 5

And the plug B to terminal 7 to pin 6 of the ELM Interface
and the terminal 8 to pin 14 of the ELM Interface



Greetings Eddy
Hello AlfaEddy! Thanks for the info :) So, i guess as long as ECU is powered with a 12V 65Ah car battery (as it was fitted in the car) and the properly lines connected i shouldnt have problems acceding modules, does ELM327 do all the rest of the work?

Have a happy Christmas!
Alfaeddy
Posts: 1350
Joined: 19 Feb 2011, 17:43
Location: Germany , Aarbergen

Re: Connecting to a ECU without a Car

Post by Alfaeddy »

Hello Aaron92

The problem you may have is the other sensors
such as Steering wheel sensor, steering force sensor warning light is missing
Therefore, a reading error will not provide useful results

Greeting Eddy
alfa156sarajevo
Posts: 870
Joined: 12 Feb 2010, 09:03
Location: EU, Germany

Re: Connecting to a ECU without a Car

Post by alfa156sarajevo »

Hello Aaron92,

Please let us know when you find something than can help us!
I am interested too.

Thanks,
Coded Keys & CODE card for Alfa Romeo, Fiat and Lancia cars
aaron92
Posts: 16
Joined: 23 Mar 2012, 21:03

Re: Connecting to a ECU without a Car

Post by aaron92 »

Hello guys! I have been a bit busy with other work and couldnt try it, but after some tests i couldnt enter to the diagnose... I'm playing with CANBUS recently, and I think we are some "Wake up" packet, as ECU is always powered with 12V, same way when it's fitted on the car, but in the car, we have to turn on the key to put the car on ignition (that could be translated on sending to can bus lines the specific CANBUS packets for ignition...) Anyone have idea of what packets do I have to send? I have Kvaser Light Leaf High speed Can bus interface, so I have the hardware neccesary for it, I'm open to suggestions! thanks!
aaron92
Posts: 16
Joined: 23 Mar 2012, 21:03

Re: Connecting to a ECU without a Car

Post by aaron92 »

Hello guys, any notice? Thanks
aaron92
Posts: 16
Joined: 23 Mar 2012, 21:03

Re: Connecting to a ECU without a Car

Post by aaron92 »

Up!!

NOTE: I have a fiat Stilo, could the CAN BUS Packets be the same for the ignition message for other fiats? Thanks
HaroldOffirty
Posts: 3
Joined: 18 Dec 2014, 06:53

Connecting to a ECU without a Car

Post by HaroldOffirty »

The FlashPro is not communicating with the ECU. Unplug the FlashPro, disconnect the battery for a minute, and then see if the FlashPro can see the ECU. Dont forget about the radio code.
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