Hi chaps wondering if you can help with a fault I’m having with my 2010 4.4 tdv8 parking sensors. When I select reverse, I got the long continuous bleep and parking sensor button light flashing. Both front and rear sensors not working. Checked the control unit and found a tiny bit of corrosion on the pins but nothing excessive. Cleaned the connectors and hoping for an easy fix, I bought a new control unit from Land Rover but still have the fault. Seen on here that you can listen for a clicking coming from the sensors to identify which ones are working but none of mine are making a clicking noise. Can anyone advise where to go from here? Assume I have a broken wire somewhere?

I have the exact same issue. My GAP IID tool sometimes tells me it's lost communication with the PAM but has now stopped even doing this and never indicated what sensors are not working. Replaced the PAM with a new one as the old one had water damage and at least now the button lights and bleeps indicating a fault. I was going to pull off the rear bumper to test the sensor wires but couldn't be arsed and wasn't convinced this was the fault. On the later cars ultrasonic clicks are silent so I tried a bat detector and this didn't pick anything up either. In the end I've left it as the rear camera is good enough for reverse parking and I can judge pretty well the front distance. 2012 TDV8 Vogue (L322)

Normally it will be sensor that has failed, or a wire broken.
Start the RR up and have a listen for the tick tick tick sound the sensors make, the one that's not will be the one to pull out and have a look, and I bet its the inboard sensor which is a pain to get out.
I thought it was a sensor as 99% of the time it will be as on mine the other day.....so bought a new one.
While waiting for it to arrive I was going to swap a front sensor and put it in place of the failed one at the rear........only to find a broken wire.
Soldered it up and, yes you guessed it.......tick tick tick.....
 If it dont work.......burn it!

If the IId tool cant fix it.......burn the FF.

If the FF cant be fixed......buy a Land Cruiser!

If the LC cant be fixed..............................................BUY a horse !!

Facelift cars have silent sensors that don’t tick. 2012 TDV8 Vogue (L322)

Unfortunately if you have replaced the module and still have the fault you will have to go back to basics and test everything from the incoming 12v supply to the continuity of the looms and the resistances of the sensors. I did a brief write up of my parking sensor adventure that should turn up from a quick search  Bish.

2005 110 TD5 CSW
2011 TDV8 Vogue SE (gone)

G3BML wrote:

Hi chaps wondering if you can help with a fault I’m having with my 2010 4.4 tdv8 parking sensors. When I select reverse, I got the long continuous bleep and parking sensor button light flashing. Both front and rear sensors not working. Checked the control unit and found a tiny bit of corrosion on the pins but nothing excessive. Cleaned the connectors and hoping for an easy fix, I bought a new control unit from Land Rover but still have the fault. Seen on here that you can listen for a clicking coming from the sensors to identify which ones are working but none of mine are making a clicking noise. Can anyone advise where to go from here? Assume I have a broken wire somewhere?

That's a great help. Still not seeing any parking system fault codes on the GAP Scan and have just been reading the workshop manual section for my year car and it mentioned this as well. It also says that if you fit a new parking ECU it needs to be programed by the workshop tool. There is no option of doing this in the GAP IID tool so maybe the workshop reprogram updates the suspension calibration values? 2012 TDV8 Vogue (L322)

bishbosh10 wrote:

Unfortunately if you have replaced the module and still have the fault you will have to go back to basics and test everything from the incoming 12v supply to the continuity of the looms and the resistances of the sensors. I did a brief write up of my parking sensor adventure that should turn up from a quick search

We’ll I took the back bumper off today and found someone has been in here before. One of the wires on the plug on the car has been snipped right down at the connector and a length of wire has been soldered, completely bypassing the multiplug. Question now is, can I buy a new plug and pins to put it back to standard?

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Click image to enlarge

Was this the causing the fault though? 2012 TDV8 Vogue (L322)

Not sure, but was going to change the rear bumper loom for the sake of £40 just to rule that out. Just irritates me because it’s not a proper repair

Little update, received new rear bumper wiring loom and repair wire/pins for the multiplug on the main loom on the car this week so hopefully get that sorted this week. Also purchased an IID tool and scanned for faults, these are the codes I am dealing with -

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