Parking sensors not working in 2009 Caravelle...!

[blaast]

When the parking sensors are turned on manually or by shifting into reverse, a long loud beeeeeeeep comes from the dashboard, and the light on the parking sensor button flashes continuously.

I have checked that the sensors are 'pinging' by placing my ear against them and I can hear all 8 (4 front, 4 rear).

I have not been able to find the specific location of the parking sensor fuse anywhere online, so I had a look at all the fuses as best I could without removing them and they all seem fine.

Short of removing them, I've also cleaned them, tapped on them, and pushed on the back of them, but to no avail.

Any help identifying the cause or suggesting other tests would be greatly appreciated!

Cheers!

[Darkhorse Developments]

You need to get fault codes checked. More than likely that either the front or rear parking aid buzzer has failed. When they fail it shuts the system down as it cant function 100% if not a buzzer issue then one of the sensors has failed. Again it shuts the whole system down if one component is inop

[blaast]

You need to get fault codes checked. More than likely that either the front or rear parking aid buzzer has failed. When they fail it shuts the system down as it cant function 100% if not a buzzer issue then one of the sensors has failed. Again it shuts the whole system down if one component is inop

Never considered that it would be the actual 'buzzer' that has failed!
Where are these located, as I'll try and have a look at them?