Citroen relay Parking Help

[Adamhratcliffe]

Hello.

My Relay has now started to display error 'Parking Help Unavailable' every time I turn it on.

I have bought a new sensor and tried in turn to change each one and get the error on switch on each time. Is there a module that I can test next or what is the best fault finding method? The rear buzzer does sound if that makes a difference.

Thank you.

[GiveMeABreak]

This can sometimes be accompanied by some of the dash displays also not working and is commonly linked to a bad battery terminal / earthing connection. So I would check the battery terminal leads and connections, clear any corrosion up, put some copper grease on the posts and see if this solves your problem. Also disconnecting the battery whilst you are in the process of doing this can also help.

These vehicles are essentially FIAT Ducatos and this fault is well-known on the Fiat Forums. So do the wiring and battery / disconnect checks first and see if that fixes it - if not, further investigation will be needed like a diagnostic to see what is being recorded.

Here's the BSI Reset / Battery Disconnect / Reconnect Procedure which is a good idea to follow.

[Adamhratcliffe]

Hello,
I have had an earth issue which resulting in a clicky starter motor. I have replaced the earth with an additional earth strap and now it starts fine straight away so I would think the earthing is not the issue...