Member Since: 25 Feb 2020
Location: HP16 9QH
Posts: 5
Erratic HDC fault that lowers suspension and puts engine int
Hi I need help as the Land Rover dealers cannot find this fault or define it.
When driving I occasionally get a HDC fault the power cut and the suspension then lowers. the car will still move and the engine still runs but the car is is safe mode. If you just restart the car it resets and is ok but it will come back quite soon after.
EG Saturday it occurred after about 50 mile and then a large number of time. Sunday I did 200 mile with out an issue.
It first happen when towing a boat to Italy in July. We got picked up by RAC they chanaged the Gas re circulation valves at huge cost and then it did not solve the problem. Climbing over the Alps was a nightmare.
has any one got any ideas of where to look.
Pete
27th Feb 2020 5:01 pm
Hairy47
Member Since: 13 Jul 2017
Location: Bradford
Posts: 277
steering angle sensor?
27th Feb 2020 5:17 pm
Pete L
Member Since: 25 Feb 2020
Location: HP16 9QH
Posts: 5
Would that fault not get reported as a fault code though
I do not have any other fault codes
27th Feb 2020 5:36 pm
L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
Probably not, as long as its getting a plausible reading, the ECU wont know its wrong. It will assume the vehicle is not following the direction the wheels are pointing. I have had mine drop into limp home, suspension drop to the bump stops etc . and it only showed when towing.
27th Feb 2020 7:15 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4666
Re: Erratic HDC fault that lowers suspension and puts engine int
Pete L wrote:
Hi I need help as the Land Rover dealers cannot find this fault or define it.
When driving I occasionally get a HDC fault the power cut and the suspension then lowers. the car will still move and the engine still runs but the car is is safe mode. If you just restart the car it resets and is ok but it will come back quite soon after.
EG Saturday it occurred after about 50 mile and then a large number of time. Sunday I did 200 mile with out an issue.
It first happen when towing a boat to Italy in July. We got picked up by RAC they chanaged the Gas re circulation valves at huge cost and then it did not solve the problem. Climbing over the Alps was a nightmare.
has any one got any ideas of where to look.
Pete
What diagnostic codes were present when the car was with LR dealer? You need this information or have the codes read now to progress further.yµ (idµ - eAµ) ψ=mψ
27th Feb 2020 7:31 pm
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
How olds your battery?
27th Feb 2020 7:54 pm
Dazz360
Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871
Codes needed else you will be throwing money at it for no reasonMetal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days)
27th Feb 2020 8:03 pm
FG76
Member Since: 14 Jan 2020
Location: Glasgow
Posts: 10
I have the exact same issue. I have a video from our local garage of all of the fault codes (not LR specialist). I uploaded it to a page on Facebook and someone advised that it was the steering angle sensor needs calibrated. Don't have access to an IID tool though and the garage it's at doesn't either.
28th Feb 2020 7:53 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
You might want to check and see if something like this is the cause....
The yellowish plastic castleated ring jumping about on the steering sensor should turn smoothly with the steering wheel movement (its up underneath the dash at the top of the steering column - this is viewed from below)
Wheel movement and sensor movement will be all over the place so the system has a hissy fit and throws an error as it thinks you are skidding sideways
Often get the ABS cutting in at the same time on one wheel as it thinks the car is in a skid!Must stop buying shiny toys....
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