C70 Park Assist "just not working"

[ghowe79]

Good afternoon,

As the title suggests, the park assist is not functioning and I need some suggestions. Here is where I am at:

• None of the sensors are active (ie. no noise from them)
• The reversing lights function correctly upon engaging reverse gear
• When engaging reverse, the infotainment system says the system is active
• If the fuse is removed, the infotainment system does not indicate system is active
• No codes have been stored in the park assist module
• Park assist was not manually disabled - it just stopped functioning

The removal of the fuse and subsequent loss of the message about park assist being active suggests that the module is basically communicating with the bus, so I'm thinking possible faulty module.

Whatever it is, you can imagine my surprise when I reversed into my garage and the "auxiliary reverse sensor", also known as the tow ball, activated first!

Any thoughts or suggestions appreciated.

[mrfixer]

Need to connect to Vida to find out what sensors are not working and replace. Only needs one to not work to stop the whole thing to not work

[MDS40]

As mrfixer said.

I couldn't hear any sounds from mine but Vida flagged up sensor 4 faulty.
New one for £10 from the bay and all was good.

[ghowe79]

Unfortunately, the PAM is not showing any error codes, which is a VIDA readout.

[ghowe79]

Originally Posted by mrfixer

Need to connect to Vida to find out what sensors are not working and replace. Only needs one to not work to stop the whole thing to not work

Just wondering if you have any more ideas?
Vida shows no stored codes, or any other issue.

[eagle58]

Originally Posted by ghowe79

Just wondering if you have any more ideas?
Vida shows no stored codes, or any other issue.

I have a similar fault on my C70. It's only intermittent and Park Assist currently is working fine. I wondered if there was some sort of earthing issue but otherwise can't explain it.