RRSPORT.CO.UK

    Forum   Gallery   Shop   Sponsors
Home > Technical > Yellow suspension light fault
Post Reply  Down to end
Page 1 of 1
 
jaime



Member Since: 26 Oct 2017
Location: windsor
Posts: 2

United Kingdom 2007 Range Rover Sport TDV8 HSE Buckingham Blue
Yellow suspension light fault

Hoping someone can offer some advice please.

I've got a 2007 range rover sport, hse, 3.6 v8. Going along nicely then the yellow suspension light came on with the suspension fault showing on the screen. The air suspension still operates off road, normal and access height, but the front right seems to have a mind of it's own. The 4x4 display in the car shows the front right wheel dropped with the bar underneath flashing red. The car is going along at a slight tilt (leaning to the left) where the left wheel height, front and back, are operating at the normal height, but the rear right hand side is trying to match the incorrect height of the front right wheel, creating the slight lean. On a couple of occasions, the front right has gone up incredibly high for some reason (even higher than the off road height), the back right has raised to try and match it and I just haven't been able to get it down again until it decides it want's to sort itself out (back to the sight lean) which has taken a couple of hours the last time it did it. Incredibly embarrassing to drive as you can imagine!

I initially thought the sensor had been water damaged as I'd had someone round to professionally remove minor scratches and he used a powerful pressure washer to clean the car and the fault developed the day after. Bought a new sensor from Land Rover, fitted it and no difference to the fault at all so clearly not that.

My brother in law took it to his friend (who's not a land rover specialist but owns a garage with an expensive fault reader!) and they established that there is no power going to the front right sensor. The more detailed error message that was coming up was something along the lines of there being no communication to the ride height control module. Took a guess that maybe it was the ECU if there was no power to the front sensor, so bought a second hand one off ebay, plugged it in and the error light went red, the heights wouldn't change and said max speed of 30mph as soon as the engine was switched off. Rapidly put the old ecu back in, and back to yellow, everything still working. It could be the ebay ecu just isn't working for it to go to major fault mode? But if that's the case, does that imply the current ecu is working as the fault light is yellow and all suspensions are going up and down, but just that front right one seems to like sitting higher than it should.

Given the error message we've had and the lack of power to that front sensor, does any one have any ideas what we could try next please?

Post #539370 Thu Oct 26 2017 6:50pm
View user's profile Send private message View poster's gallery Reply with quote
rich_sargie



Member Since: 08 Sep 2014
Location: hull
Posts: 105

United Kingdom 2011 Range Rover Sport 3.0 TDV6 HSE Bali Blue

The wiring loom from the sensor to the ecu need testing. but not just a continuity test as this does not put any load on the circuit. If the sensor does not have a good supply voltage and a good grounding it wil not give the correct output.
I might be wrong but it is probably a 3 wire sensor. Supply voltage pin1 signal wire pin 2 and ground pin 3 would be my guess.

Post #539378 Thu Oct 26 2017 7:18pm
View user's profile Send private message View poster's gallery Reply with quote
jaime



Member Since: 26 Oct 2017
Location: windsor
Posts: 2

United Kingdom 2007 Range Rover Sport TDV8 HSE Buckingham Blue

Thank you, we'll give that a try tomorrow

Post #539439 Fri Oct 27 2017 1:12pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

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



Site Copyright © 2005-2017 Futuranet Ltd & Martin Lewis
RRSPORT.CO.UK RSS Feed - All Forums

Switch to Mobile site