Obd not connecting to ecu

[Adil626]

Hello my Citroen C4 picasso is not connecting to ecu for some reason and when I plug in my obd2 I get handbrake faulty esp faulty power steering faulty when I unplug and turn car off and on again it doesn't pop up again until I connect obd again

[OG_Matt]

Did you ever get this resolved?

I have the same fault in my Citroën C4 picasso, on-board diagnostics machine still working but tried 3 different OBD readers, only seeing power steering. Had a faulty handbrake, wire had popped in rear harness. I fixed this & fault resolved on dash, handbrake works again, but still OBD only seeing power steering

[xantia_v6]

A simple first check is to look at the pins on the OBD connector to ensure that none have been previously damaged.