Beeping\clicking noise from engine bay after switching off

[Lyts1985]

Hi guys!

Recently bought a 2011 S-Max, 2.0 diesel, 140bhp. The front parking sensors weren't working and I narrowed it down to the wiring loom. So today I pulled the bumper off and changed the loom, put it all back together, and everything seems to be working fine.

That said, when I switch the engine off now after about 10 seconds i can hear 6 short beeps. Once it's done that it makes 6 clicks. The sounds seem to come from the front bumper area. Before taking the bumper off I noticed it used to make a slightly longer beep (which I assumed was normal) but this has been replaced with this series of beeps.

Any ideas what I might have done to cause this or what the beeping may be? I'm certain I reconnected everything but if someone can tell me what might be causing this series of beeps (or even the single beep before) it gives me a starter for 10.
 

Thanks all!

[unofix]

Use FORScan on a laptop and you will be able to read the error codes for the parking sensors. The series of beeps you here is a basic code to warn of an error with the system. Possibly one of the sensors is not working.

FORScan (free for windows): https://forscan.org/download.html

vLinker FS cable: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP

[Lyts1985]

Thanks Unofix. The beeping and clicks appear to be coming from the engine bay though, and replacing the wiring loom for the sensors fixed the issue with them. I do have Forscan, will give it a whirl and see if any errors come up, but if not do we think it's safe to ignore these beeps?