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Reverse sensors not working
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Glen
 


Member Since: 19 May 2007
Location: Sussex
Posts: 28

England 2011 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4
Reverse sensors not working

Hi all

Sorry for another reverse sensors thread but I've trailed through all the ones I can find and none of them match my symptoms (some very useful stuff which will apply to my Freeloader tho!)

As soon as the ignition is turned on the parking sensor amber light flashes. No noises at all and absolutely nothing when reverse selected. The light flashes constantly until switched off (which it is slow to do).

I've tried the tests suggested and all 4 sensors are apparently working. I've also had a look at the parts of the loom that I can see and the connections under the light cluster and there is nothing obvious there. Does this all point towards a control module or is there anything else to try.

Thanks for your help as ever.

Cheers
Glen
  
Post #131264518th Jul 2014 7:53 am
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Tufty
 


Member Since: 13 Jul 2010
Location: UK
Posts: 481

England 2009 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Hi, I have the same and was told control module, came about after washing the car though so I'm still wondering water ingress although it should have dried out by now.

Haven't got the bucks for the control module though at the moment so it'll have to stay flashing Sad
  
Post #131303118th Jul 2014 10:23 pm
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cliveaff
 


Member Since: 05 Sep 2006
Location: Eastbourne
Posts: 328

England 2006 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

Have a look at this you might have read it, but this has worked for me.

Stevie B wrote:
Had this problem myself. Park Brake fault light! Loss of gear Indication Number on Dash. Loss of Reversing lights when in Reverse and no Reversing sensor. Otherwise car drove well

Went to an unnamed LR Dealer in Saltash, Cornwall. They quoted me almost a grand for a new clutch plus more if I had to replace the flywheel

I was a little strapped for cash and started asking round non LR dealers and one of them being a former LR Dealer mechanic told me it was the sensor (XY) that tells the Car what gear it is in and it needed resetting. Then he said it can easily be sorted and to do this before doing anything else...

1) Find a long straight and quiet section of road.
2) Select LOW Ratio.
3) Reverse for about 200 yards or until you get the beep and the R on the dash gear number indicator. And then a tiny bit more for good luck. Stop, then...
4) Go forwards in 1st until number appears. Clutch pedal must be fully raised each time.
5) Then up through the Gears waiting for each of the numbers to appear. Do not skip any gears!
6) Stop at 6th, back into neutral, switch off engine.
7) After a brief rest, I took a couple of minutes just to make sure all the bad ju ju was gone and to have a quick wee as it was just all too exciting.
Restart and select High Ratio and you're on your way..

I did this and problem fixed. This (wee optional) resets the XY sensor...

However; if the light keeps coming back on check your revs when putting your foot down. If they slip up and slow down while the speed catches up then your clutch plates are on the way out. This eventually happened to me 40k miles after my first problem. As long as the clutch isn't juddering violently each gear change, then it should be a case of just new plates without a flywheel replacement...

NB: In the case of having new plates the fault light will be lit upon receipt of your motor. Give it a few miles for the new plates to bed in then reset the XY sensor and the fault light will miraculously go out...

Hope this helps and saves someone forking unnecessarily when in a few minutes you can sort yourself out...
 Land Rover Dicovery 3. 5 Seats.
With side Steps, And rubber floor mats and rubber load space cover.
Front and Rear Mud Flaps.
Light Guards.
Engine Re-Map
Alpine Mobile Media Station. With SatNav.
Xenon head lights
Old Man Emu Suspension
Triumph Sprint RS 1050
Discovery 1 300tdi 1995 
 
Post #131310119th Jul 2014 8:00 am
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Glen
 


Member Since: 19 May 2007
Location: Sussex
Posts: 28

England 2011 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4

Thanks for that. I had seen it but since the gear display/ reversing lights etc were working I had discounted it. Would it screw anything up if I do it with those bits already working?
  
Post #131339919th Jul 2014 9:10 pm
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cliveaff
 


Member Since: 05 Sep 2006
Location: Eastbourne
Posts: 328

England 2006 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

It would be O.K. To do as you are only driving the car normally, but in low ratio.
 Land Rover Dicovery 3. 5 Seats.
With side Steps, And rubber floor mats and rubber load space cover.
Front and Rear Mud Flaps.
Light Guards.
Engine Re-Map
Alpine Mobile Media Station. With SatNav.
Xenon head lights
Old Man Emu Suspension
Triumph Sprint RS 1050
Discovery 1 300tdi 1995 
 
Post #131340019th Jul 2014 9:14 pm
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