CanBus on Transit Custom

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Re: CanBus on Transit Custom

Postby Fat Freddy » Sat Apr 22, 2017 1:45 pm

Hi Richard.

I must apologize. 'Good' is probably not the right wording. A lot better is a more suiting term. I hadn't applied the Maths for the download.

I agree. I would have considered it unusable also and was surprised it was still a valid bus with the right software/hardware.

And no I don't have a after capture after repair but here is a capture with the PCM disconnected. Still not perfect but IIRC other scan tools could then communicate.

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Re: CanBus on Transit Custom

Postby FioranoCars » Sat Apr 22, 2017 1:52 pm

Thanks FF
That's great, just wanted to see if it was a 2.5v base with something in the Engine ECU chipset pulling up the voltage to the weird levels, or if this was some other "new" operational voltage level ... clearly it should be 2.5v, which is re-assuring!

Hope the weather is good out there, we might be getting snow this weekend over here :-(

Cheers
Richard
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Re: CanBus on Transit Custom

Postby STC » Sat Apr 22, 2017 11:49 pm

There is no stipulation for Can Voltage - It can be anything.

Mercedes Benz Body CAN is recessive (asleep) at circa 8v.

When examining the system for parasitic drains, measuring 8v on that network is a PASS. Move on ...

The variables are numerous - endless ...

It is a case of Specialising in a brand or 2, either that or be a busy fool - like me - always playing catch up.
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