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Rear PDC - Sounds continuously when in reverse
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10463

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4
Rear PDC - Sounds continuously when in reverse

As the title the Rear PDC sounds continuously when reverse selected, irrespective whether there is anything within range to the rear.

I have cleaned the sensors. Anything else I can do other than read the codes - I sold my GAP IID BT as I hadn't used it Big Cry

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #210884028th Dec 2019 9:04 am
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Weyboat
 


Member Since: 13 Apr 2018
Location: Weymouth
Posts: 261

England 2015 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Err...
https://www.disco3.co.uk/forum/sale-gap-ii...72779.html
 Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey' 
 
Post #210884528th Dec 2019 9:28 am
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J@mes
 


Member Since: 10 Nov 2008
Location: Bomber County
Posts: 4544

England 2014 Discovery 4 3.0 SDV6 XS Auto Corris GreyDiscovery 4

Ignition in P2, engine off, select reverse.

Bend down at rear of car and listen for sensors clicking (put ear at each sensor)

If one or more isn't clicking, its faulty and needs replacing. Ebay £15 sensors are fine. If you've got none clicking I'd suggest the loom has worn through under the bumper and will need soldering or replacing.
 2014 D4 XS
2005 D3 SE - Gone 
 
Post #210884828th Dec 2019 10:10 am
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10463

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Thanks J@mes

I haven't yet checked the car, but it looks as if the part number is LR010927 or LR038084.

Can't find any at £15 on eBay - they mostly seem to be cheaper than that. Maybe I'm looking in the wrong place?

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #210886228th Dec 2019 11:26 am
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MKDS
 


Member Since: 13 May 2020
Location: Vienna
Posts: 22

Austria 2008 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Good morning!

Without wishing to perform necromancy on this thread: I do suddenly have the same problem. When putting the car in reverse, I get the continuous beeping sound.


I have already put the car in reverse after turning the ignition key to position II and put my ear to the sensors. All I can hear is a very faint sound from each sensor best described in tone and volume as the faint sound sparkling water makes.

So, is this the sound it is supposed to make?
If so, do you have any ideas where the fault might be?

(But: Finally! A good chance to get a GAP IID Tool! Mr. Green )

Thank you for your time with my possibly somewhat silly question (and less than smooth English)!

EDIT: It was a bit early, sorry. I did not realise, I posted in the Disco 4 section...
  
Post #219598224th Dec 2020 8:15 am
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