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Discussion Starter · #1 ·
I have "Electronic Fault" message on the dash and Service light on on my Megane so I got diagnostics done on the car. The diagnostics came back with this code and message - DF033 Multiplex network. Active CAN connection fault.
Haven't got a clue what this means and would really appreciate if someone could point where I should look.
Cheers.
 

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Hi.
First place I would look is in the UPC fusebox beside the battery.
Check the connections for any kind of corrosion.
Failing that check the loom that runs across the front of the battery, there is a green wire and a pink wire in there that like to randomly corrode
 
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