Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > Technical (D3)

Rear parking sensors gone nuts .....
Post Reply  Down to end
Page 1 of 1
XDAndy
 


Member Since: 16 Jan 2018
Location: Gibraltar
Posts: 597

United Kingdom 2011 Discovery 4 3.0 TDV6 XS Auto Nara BronzeDiscovery 4
Rear parking sensors gone nuts .....

My rear parking sensors have started giving a continuous tone, which cuts out after a few seconds, then the parking switch lamp starts flashing.

I’ve seen other threads describing this as a fault with the parking assistance unit or sensors, but is there any chance this could be related to charging the car battery via the 12s tow socket?

Recently got a CTEK charger, and wired up a connector to pins 3 and 4 of 12s plug so as to charge with doors locked.

Have done this three times so far, apparently without issue until parking sensors went nuts.


Andy
  
Post #19333874th Apr 2018 3:22 pm
View user's profile Send private message View poster's gallery Reply with quote
alfamale
 


Member Since: 25 Jul 2011
Location: Stroud, Gloucestershire
Posts: 2185

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Zermatt SilverDiscovery 4

My rear parking sensors do this when they're wet. Usually from off-roading not just rain. Perhaps water ingress related?
 Front Runner Rack, OEM Ladder & RAI, Tuff-Trek Foxwing, B'rakhah Ingonyama Expedition Trailer, RLD's Spare Wheel Protector, Bodsy's Bars, Empty Pockets! Member of Gloucestershire & Worcestershire 4x4 Response.

 
 
Post #19333884th Apr 2018 3:31 pm
View user's profile Send private message View poster's gallery Reply with quote
panda32
 


Member Since: 30 Mar 2018
Location: Sudbury
Posts: 8

United Kingdom 

I have had the same problem Andy. You can check the sensors by putting it in reverse and putting your ear next to each sensor, you will here a clicking noise from each working sensor. If one is not clicking then that's the issue.
  
Post #19333944th Apr 2018 3:56 pm
View user's profile Send private message View poster's gallery Reply with quote
XDAndy
 


Member Since: 16 Jan 2018
Location: Gibraltar
Posts: 597

United Kingdom 2011 Discovery 4 3.0 TDV6 XS Auto Nara BronzeDiscovery 4

IID tool gave me this

Quote:
Parking Aid

B1B44-96 (6C) Rear right outer sensor - Component failure - internal failure


Unfortunately, looking at live values did start to show meaningful numbers, but then started to beep and shut down again, and only shows 2.5m so cant actually check the individual sensors.

I’ve reached up to give the connector a wiggle on the rear right outer sensor, but it seems fairly connected in there.
  
Post #19334394th Apr 2018 6:25 pm
View user's profile Send private message View poster's gallery Reply with quote
carbore
 


Member Since: 06 Apr 2016
Location: Cornwall
Posts: 545

United Kingdom 2009 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

Hi,

Mine do the same, start complaining when wet (as I live in Cornwall thats basically all the time at the moment)

Is it usually a replacement job or can they be rejuvenated with some love cleaned contacts etc?
 Disco 3: Lotus Elise S1: Ferguson T20: Audi A2  
Post #19340276th Apr 2018 1:53 pm
View user's profile Send private message View poster's gallery Reply with quote
Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10335

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

you could try some compressed air (low pressure aerosol) into the front
Just try 2 to start with in case it break them!

or take um out and take them into the house to dry out for a couple of days
  
Post #19340776th Apr 2018 5:08 pm
View user's profile Send private message View poster's gallery Reply with quote
zulublue
 


Member Since: 13 Jul 2018
Location: Middle England
Posts: 90

England 2008 Discovery 3 TDV6 GS Manual Zambezi SilverDiscovery 3

panda32 wrote:
I have had the same problem Andy. You can check the sensors by putting it in reverse and putting your ear next to each sensor, you will here a clicking noise from each working sensor. If one is not clicking then that's the issue.


I assume this works just on the ignition? I've tried this on mine and can't here anything.
  
Post #196902830th Jul 2018 3:37 pm
View user's profile Send private message View poster's gallery Reply with quote
Map503
 


Member Since: 26 Nov 2011
Location: Banbury
Posts: 173

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Yes has to be in reverse with the ignition on and parking brake off.
 Now gone - D3 Zambezi silver. Smoked / limo windows, various LEDs, DVD in headrest screens. Side steps, GG AT's, software and Bluetooth upgrades by Bodsy.  
Post #196903030th Jul 2018 3:45 pm
View user's profile Send private message View poster's gallery Reply with quote
zulublue
 


Member Since: 13 Jul 2018
Location: Middle England
Posts: 90

England 2008 Discovery 3 TDV6 GS Manual Zambezi SilverDiscovery 3

Cheers, found it. Offside sensor.
 

Last edited by zulublue on 30th Jul 2018 3:50 pm. Edited 1 time in total 
Post #196903130th Jul 2018 3:46 pm
View user's profile Send private message View poster's gallery Reply with quote
Mole734
 


Member Since: 12 Aug 2016
Location: Derbyshire
Posts: 161

United Kingdom 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

Ignition on and in reverse (Duh!) and parking brake off, that's probably the bit you're missing

The loom has a habit of becoming intermittent....
  
Post #196903430th Jul 2018 3:48 pm
View user's profile Send private message View poster's gallery Reply with quote
zulublue
 


Member Since: 13 Jul 2018
Location: Middle England
Posts: 90

England 2008 Discovery 3 TDV6 GS Manual Zambezi SilverDiscovery 3

I'd worked the reverse bit out Whistle Didn't know about the park brake.

Thanks again
  
Post #196903630th Jul 2018 3:52 pm
View user's profile Send private message View poster's gallery Reply with quote
john watson
 


Member Since: 10 Nov 2011
Location: lanark
Posts: 955

Scotland 2007 Discovery 3 TDV6 XS Manual Zermatt SilverDiscovery 3

I have just replaced my LHS rear sensor. About 10 mins work. You don’t need to take off the bumper.

The sensors is held in position by two clips. One ot the 12 o’clock position and one at the 5 o’clock position.

You need about a third of an old credit card or similar. Locate the sensor behind the rear exhaust pipe and feel for the clips!

With your index finger lift the top clip and with the card in the palm of your hand slide it under the raised clip.

Then release the lower clip by pushing down on it and push out the sensor. The plug on to the loom can be release by gently raising the locating lug and pulling the male/female clear. The replacement sensor will show you where the locking portion is.

Assembly is the reverse.

Hope this helps.
 Once you have defeated the idiots any job is half done. Pity there are so many idiots to defeat.  
Post #196908130th Jul 2018 6:40 pm
View user's profile Send private message View poster's gallery Reply with quote
zulublue
 


Member Since: 13 Jul 2018
Location: Middle England
Posts: 90

England 2008 Discovery 3 TDV6 GS Manual Zambezi SilverDiscovery 3

Great, thank you John.
  
Post #196911330th Jul 2018 8:17 pm
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site