computid
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| posted on 28/2/18 at 02:52 PM |
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2007 Range Rover Sport brake pedal sensor issues
Hi all,
I thought I'd ask the collective, since somebody here is bound to have an idea of whats going on!
My father purchased a 2007 4.2 Supercharged Range Rover Sport last week with 33,000 miles on the clock from a non-franchised dealer up north. We took
it for a 60 mile test drive and all seemed well with it. After purchasing the car and beginning the drive home, we got about 40 miles before the dash
lit up like a Christmas tree with faults such as Transmission Fault, Parking Brake Fault, Suspension lowered, HDC disabled and special modes disabled.
At this point we also noticed that the brake lights were stuck on.
I read the codes in the motorway services with my OBD-II reader and there were 2 codes stored, both the same: "Brake Switch A/B
Correlation".
We contacted the dealer and whilst he offered for us to drive it back, take back the car we part-ex'd, have him sort it and then come back to
collect it, by this point it was getting quite late and my father does not travel particularly well these days (For a number of reasons) so we decided
to press on and have it sorted out down south, to which the dealer agreed.
The next morning I headed over to my local LR dealer and got a new brake light switch. I installed it, cleared the codes and sure enough the problem
went away! Excellent I thought, all sorted for £18 which the dealer is paying. We took the car out for a little drive and after 40 miles, the code
tripped again and the dashboard came up with the same warnings and errors. Bugger. We spoke to the dealer again, and it transpired that they'd
had this issue when the car came in and had changed the brake light switch once already, but had done some miles in it since then and had no issues.
The dealer seems like a very helpful and honest guy so I hold no issue with him or the company.
My father then took the car on the advice of the dealer to our local Land Rover/4x4 specialist. He checked the brake lights and found them to be
non-OE single filament bulbs which can apparently cause this issue. He changed them out for LR ones and cleared the codes again. My father drove home
and all seemed fine. The following morning he got in the car, went to drive it and the fault occurred again. We are now at the stage where he's
trying to get it into the garage (they're very busy) and the dealer is waiting to see what the garage says. Obviously the dealer is responsible
for this fault but it's very frustrating that he has a new (to him) car that he can't drive!
Has anybody experienced anything like this, or know of any similar issues, that might be able to offer a potential solution? I'm up for trying
most things to try and get this issue sorted!
One thing the garage did mention is that it was odd that it had two of the same codes stored. I figured this was due to it having 2 ECU's but if
anybody could shed any light on this it would also be appreciated.
Cheers!
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Agriv8
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| posted on 28/2/18 at 03:43 PM |
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Looks to me that there is two brake switches where is the other one.
possibly one mechanical on the peddle maybe and another somewhere ABS pump. Most cars have Brakes and Stability systems linked could this be the two
ecu ?!?
If I were in your situation
I would be looking around the land rover forums
taking it to a 'Respected' independent
Long shot
Are the Carpets dry ?!? could something be leaking over a loom / connector somewhere ( had this on an old VW Passat ) that had a real Christmas tree
moment
ATB Agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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Simon
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| posted on 28/2/18 at 04:52 PM |
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I'd be inclined to return the car.
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02GF74
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| posted on 28/2/18 at 06:25 PM |
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Return the car,!!!
My ex boss took an rr for test drive and same thing happened, dashboard lit up but with car failing to restart.
Dealer was big car supermarket place near Luton so could be the same place, sorry but don't recall the name.
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daviep
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| posted on 28/2/18 at 08:02 PM |
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I've read the same fault on a disco3 forum which turned out to be a wiring fault. One of the tests was to see if the autobox would select drive
without the brake pedal pressed, if it does the ECU is getting an open switch signal when the switch is actually closed.
I'll have a look and see if I can find the thread. Links at bottom have good info but neither have problem of brake lights stuck on.
10 year old Land Rover is always going to be a recipe for electrical problems, sorry.
Cheers
Davie
LINK
LINK
[Edited on 28/2/18 by daviep]
[Edited on 28/2/18 by daviep]
“A truly great library contains something in it to offend everyone.”
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perksy
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| posted on 28/2/18 at 10:17 PM |
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Hope you get it sorted and its not a sign of things to come
A mate had one of these and it had more than a few issues 
as soon as the landrover warranty ran out he got rid of it...
[Edited on 28/2/18 by perksy]
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Mr Whippy
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| posted on 1/3/18 at 07:17 AM |
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these are terrifying cars for maintenance issues and stupendous services costs, seriously and no joke if I was given one for free it would be on E-bay
the next day without me daring to switch it on
All the best luck in the world keeping that lemon on the road 
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steve m
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| posted on 1/3/18 at 07:52 AM |
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I would also get rid of it asap, as with a Rover 45 I had years ago out of the 2 years I had it, it spent over 6 months in the local rover dealer with
electrical problems, that in the end I fixed, with a new fuel pump relay Rover changed pretty well everything else, and it always failed when I got
the car back
My car was also VERY low mileage, as I never drove it for fear of breaking down, hence your RR with 33k and 11 years old
steve
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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Mr Whippy
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| posted on 1/3/18 at 12:59 PM |
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This is the ridiculous servicing required to do anything on the engine other than very routine stuff. Some Garages quoting 2k labour just to remove
the body and just look at all the crap all over the top of the chassis, burst pipe, body off mate....
These suffer very common turbo and exhaust manifold issues...utter nightmare cars
[Edited on 1/3/18 by Mr Whippy]
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02GF74
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| posted on 1/3/18 at 03:24 PM |
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^^^^ yeah. and that's just to top up the windscreen washer bottle 
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David Jenkins
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| posted on 1/3/18 at 03:55 PM |
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Reminds me of a programme I watched about the Bentley Continental - you have to lower the engine and gearbox out of the bodywork to change the spark
plugs...
... or, to be precise, you have to take the car to Bentley to have the plugs changed.
[Edited on 1/3/18 by David Jenkins]
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britishtrident
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| posted on 1/3/18 at 06:43 PM |
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The switch is actually two very sensitive hall-effect switches -- BMW design Rover 75 suffers the same issue usually caused by the switch being
slightly loose in the mounting a lot of people have cured it by gluing the switch into its mounting.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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