All 4 front parking sensors have stopped working at the same time. I've inspected the plug on the bumper and it's ok, still connected, dry etc.

I've checked at the Parking Aid Module end and it's all dry and looks normal.

Are there any other joins I can check between the front bumper and boot?

The rears work fine still.

Thanks
Jon
(2010 model year) __
2018 L405 3.0 TDV6 Vogue SE Fuji White
2000 4.6 V8 HSE Oxford Blue
1994 3.9 V8 Vogue Ardennes Green - resto project

Land Rover History:
2010 3.6 TDV8 Autobiography Stornoway Grey
2001 Discovery 2 TD5 GS
1999 Discovery 2 V8i XS
1994 Discovery 300Tdi
1993 Discovery 200Tdi
1989 Range Rover Vogue SE 3.5EFi
1976 Series 3 2.25
1977 Range Rover 2 door 3.5 Carb

If one sensor goes down, it takes the rest with them (well at least it did with me) and this was a broken wire on one of the sensors

Diagnostics should tell you which one is causing the problem, if an inner one most likely front bumper cover will have to come off, you may be able to get at the outer ones by bending back the wheelarch liners. .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Thanks Joe, pretty sure the wiring is ok to the sensors, had the bumper off to check.

IIDTool reports all 4 down. __
2018 L405 3.0 TDV6 Vogue SE Fuji White
2000 4.6 V8 HSE Oxford Blue
1994 3.9 V8 Vogue Ardennes Green - resto project

Land Rover History:
2010 3.6 TDV8 Autobiography Stornoway Grey
2001 Discovery 2 TD5 GS
1999 Discovery 2 V8i XS
1994 Discovery 300Tdi
1993 Discovery 200Tdi
1989 Range Rover Vogue SE 3.5EFi
1976 Series 3 2.25
1977 Range Rover 2 door 3.5 Carb