Focus intermittant no start CAN BUS

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Re: Focus intermittant no start CAN BUS

Postby STC » Sat Apr 08, 2017 11:23 pm

Some great information being shared by pico users


We are agreed on the Hi Speed (critical) CAN :)

The Body or Convenience (non critical) CAN on VAG I have always known to be 2 twisted wires and Mirror image however it will run in single wire mode if one side is damaged and give a fault code.

VAG do extensively use K line & LIN too which are single wire. Add to that MOST Fibre Optic, Wireless, Infra Red, Bluetooth, Wireless, Radar .... ..... ..... Just because our job is not hard enough I guess.

So, for example, a 2013 VW Golf worth a few £k has more Networks for it to function correctly than whole Countries or Continents. Puncture two of its (if not runflat) tyres and it is ruined, a brick, absolutely useless !!!

It has to be a conspiracy :D :D :D to get rid of us Technicians, Diesels (Money Makers) are slowly going, Petrols are in the minority and can always be fixed with a Coil Pack, Hybrids and Full Electrics don't go Wrong.

The end of the diagnostic technicians world is how far away ??? :D :D :D :D
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Re: Focus intermittant no start CAN BUS

Postby RYM6746 » Sun Oct 01, 2017 11:13 am

If anyone has the symptoms I have described in this thread. Here is the fix.
https://youtu.be/9iTi_ZeRujM

I have seen this fault numerous times and usually a good whack on top of the cluster will get the car started/diagnosed and into the work shop ready for repair
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