C4 grand Picasso door fault

[Ryanoneil11]

have a problem with the dash saying both of the front doors are open which has knocked off a few features I like like parking assistance, auto hand break off , start stop and hill start.

I have error codes -

b175c - suspected failure of the door opening switch on the driver side

B173a- fault in the status of the drivers door for the determination of driver presents

The problem being I have change the drives door latch twice

The live data shows that the drivers door is always closed even when the door is open. All other door open and close as should. Weird as it’s showing door open on the main screen of the car but live data shows permanent closed.

I have also changed the drivers door module part number 9659997680 located in the passenger door with no change

Took it to Citroen dealer and they didn’t want to get involved

Any help or advise to look next would be much appreciated please

Thank you

[RichardW]

Have you checked for broken wires between the door and car?

[Ryanoneil11]

Yes all looks good there