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Rear Parking Sensor replacement issue LR4
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Deejay K
 


Member Since: 23 Apr 2023
Location: Hampshire
Posts: 50

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4
Rear Parking Sensor replacement issue LR4

Hi all,
I replaced 2 corroded but working rear parking sensors with new, genuine LR038533's. The old ones worked correctly but looked tatty.

Now the sensors do not work at all, front or rear. Having taken for a short drive, this doesn't change. by removing just the nearside rear light I can unplug the rear sensors. The P/A button on the dash now flashes 4 times and says visit service centre Sad

Before I remove the bumper cover again and swap back, is there a reset setting that I must do with the GAP iid tool to refresh the ECU?

Thanks in advance,

Dave
  
Post #23492841st Oct 2023 9:34 am
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SteveKK
 


Member Since: 11 Apr 2019
Location: North Herefordshire
Posts: 287

Ukraine 2010 Discovery 4 3.0 SDV6 HSE Auto Buckingham BlueDiscovery 4

If you fully removed the rear bumper and disconnected the electrics, make sure you fully pushed the connectors back together again. I had the same symptoms as you and it was the simple fix as above. Embarrassingly simple, but cheap to fix Embarassed

Regards,
Steve
  
Post #23493962nd Oct 2023 7:37 am
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Deejay K
 


Member Since: 23 Apr 2023
Location: Hampshire
Posts: 50

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Hi Steve,
Thanks for the advice, I have checked again and its definitely connected.
Interestingly, when connected, no beeps, lights or anything. No fault codes on Iid tool.
When disconnected, 4 beeps and the P sensor button flashes 4 times and list service centre. 4 faults on the Iid tool.
Any thoughts anyone?
Thanks in advance
Dave
  
Post #23494532nd Oct 2023 9:13 pm
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Worms
 


Member Since: 24 Sep 2023
Location: Highlands
Posts: 395

Scotland 2005 Discovery 3 TDV6 Base 7 Seat Auto Zambezi SilverDiscovery 3

Is it possible that the car has somehow entered the "no sensors fitted" status and that the CCF setting needs reversing sensors switched back on? The IID tool should give you options for reversing sensors in the CCF section, so I wonder if it is worth reconfiguring there?
 Previously:
2010 FL2 TD4e GS
‘93 Defender 110 200TDi CSW - still got this, non-runner on SORN.
‘87 Defender 90 4 cyl Petrol
‘83 110 CSW V8 - best ever!
Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch)
Series III SWB Diesel 
 
Post #23494603rd Oct 2023 4:57 am
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Deejay K
 


Member Since: 23 Apr 2023
Location: Hampshire
Posts: 50

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Hi,
I did look at that and it’s set for all. What I didn’t do was change to a different setting then change back, I will try this today. Thanks for the suggestion.
  
Post #23494673rd Oct 2023 8:00 am
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Deejay K
 


Member Since: 23 Apr 2023
Location: Hampshire
Posts: 50

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

SOLVED!

So I finally got round to taking off the bumper again and then refitted the original sensors and BOOM, everything worked as normal. I then refitted the replacements and, with the bumper balanced on the tailgate, managed to confirm that they were both duff!
Spoke with my local Indy who supplied them and they confirmed they were BRITPART sensors, and offered to order OEM ones in for me ASAP. The Britpart ones looked like this....
Click image to enlarge
  
Post #235028913th Oct 2023 1:43 pm
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Deejay K
 


Member Since: 23 Apr 2023
Location: Hampshire
Posts: 50

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

The new 'OEM' ones turned up today so bumper back off...... Yawn
And it all works perfectly! Thank you to West 4 x 4 for getting it sorted.
Click image to enlarge


Click image to enlarge


So it seems that the 2 faulty Britpart sensors just stopped the sensors front and rear working but didn't throw a fault code or knock out the rear view camera! Just in case someone else experiences the same issue. I suppose the moral to the story is unless it is really really broken.........leave well alone Embarassed
  
Post #235029013th Oct 2023 1:50 pm
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