I've had my 3.6TDV8 for six years and have managed without parking sensors as they've never worked so I haven't missed what I've never had. Then I saw a YouTube video which showed a couple of simple ways to diagnose faults by listening to which sensors were clicking to find the dud. So, I did this and none of them are making a sound.

In the car, when I put it into reverse I get a long beep in the cabin and the reverse camera works, but nothing from sensors front or rear. The PDC light flashes. Should I buy a replacement control module or am I missing something?

Any advice appreciated.

Thanks

Have you had codes read with a plug in diagnostic yet? Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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As far as i know even 1 sensor not working will stop all.
Cables connectors or only one sensor may be the problem.
Or the sensor ecu is at fault which was my problem and was fixed easily by a handy electronic guy.

I would look at connections first. 2010 3.6tdv8 180k km.
sold 06 td6 160k
Sold 03 td6 260k

Thanks for your replies. I have a generic OBD scanner. Will that find it?

No. When I had a similar problem it was the loom which had corroded. You could either get a LR code reader or try removing the bumpers and take a good look around. The damaged areas were pretty obvious. 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone>

Both bumpers need a little paint, so I think I'll take them off and investigate. Thanks for helpful replies

Had the same issue, mine needed two new ultrasonic sensors on the rear.

https://www.fullfatrr.com/forum/topic51400-15.html