Colin B Posted February 12, 2010 Share Posted February 12, 2010 Hi I'm wondering if anyone can help I've been reading quite a few different forums regarding a continuing problem with a HDC fault. I have a Disco 3 2007 it seems that there is a fault with my one i can drive for a while then my dashboard starts to light up like a Christmas tree and says HDC system fault , special programs failure, Vehicle lowering the only way i can fix it is by pulling over and turning my engine off then back on. By reading different forums i have come to the obvious conclusion that there is a fault with a hell of a lot of disco's i'm wondering why they have not been recalled as i had it recalled over the braking system what does it take for Land rover to hold there hands up and say there is a problem. i have had it looked at by a dealership who said it was a dead battery so they charged it up cleared the faults and said it is ok so i took my car home to find two days later it happened again. I also have developed another problem with the middle sunroof the blind that pulls across will not stay closed when i took it to the dealership i was told its because i have a DVD fitted in the roof lining which was a DVD that fitted by Land Rover and its the one that is sold by them in there accessories Magazine. The weight of the DVD is pulling the roof lining down they said that the clip it fits into is fixed to the roof itself and the roof lining has to be taken out and also the windscreen as you cant get the roof lining out any other way. I absolutely love my disco but Land Rover themselves are much to be desired considering Toyota are going through a rough patch and also the current climate you would think they would be going out of there way to keep customers happy. My warranty has now ran out and Land Rover want £1200 to extend it somehow i don't think i will be extending it. Sorry for it being so long but i feel very strong about these issues THANKS Colin :) Quote Link to comment Share on other sites More sharing options...
cipx2 Posted February 13, 2010 Share Posted February 13, 2010 About the HDC fault. The 'replacing the battery' fix is for when the HDC fault occurs on cold start ups. As the fault, in your case, is long after you start the engine, possibly the voltage drops in mid flight - like alternator/charging fault, much too many electrical accesories/lights (extra audio boosters installed?) running with the engine at very low rpms. Try using the sat nav to monitor the voltage or wire a voltmeter to keep an eye on what's happening. Quote Link to comment Share on other sites More sharing options...
Colin B Posted May 11, 2010 Author Share Posted May 11, 2010 Thanks for your reply sorry its been a while responding i ve been away i still have the fault i've tried not using lights on auto and any of the electrical accessories and its made no difference just don't know what to do anymore ideas Colin :( Quote Link to comment Share on other sites More sharing options...
Colin B Posted May 14, 2010 Author Share Posted May 14, 2010 About the HDC fault. The 'replacing the battery' fix is for when the HDC fault occurs on cold start ups. As the fault, in your case, is long after you start the engine, possibly the voltage drops in mid flight - like alternator/charging fault, much too many electrical accesories/lights (extra audio boosters installed?) running with the engine at very low rpms. Try using the sat nav to monitor the voltage or wire a voltmeter to keep an eye on what's happening. Thanks for your reply sorry its been a while responding i ve been away i still have the fault i've tried not using lights on auto and any of the electrical accessories and its made no difference just don't know what to do anymore ideas Colin Quote Link to comment Share on other sites More sharing options...
Betsy Posted May 14, 2010 Share Posted May 14, 2010 Thanks for your reply sorry its been a while responding i ve been away i still have the fault i've tried not using lights on auto and any of the electrical accessories and its made no difference just don't know what to do anymore ideas Colin Most likely to be a wiring fault, there is a multiplug behind the front lefthand wheelarch liner that gets corroded. Later models have a modified loom to cure the problem. You need to drop the front left wheelarch liner, and pull the plugs and check for corrosion on the pins. Other possibility is a wheel speed sensor at fault. Ideally, you need someone who has a diagnostic kit, and who knows how to interpret the faults. Quote Link to comment Share on other sites More sharing options...
Colin B Posted May 15, 2010 Author Share Posted May 15, 2010 Most likely to be a wiring fault, there is a multiplug behind the front lefthand wheelarch liner that gets corroded. Later models have a modified loom to cure the problem. You need to drop the front left wheelarch liner, and pull the plugs and check for corrosion on the pins. Other possibility is a wheel speed sensor at fault. Ideally, you need someone who has a diagnostic kit, and who knows how to interpret the faults. Thanks its been into Land Rover 5 times with the same fault in total they have had it for 11days and keep saying its a low battery or its not charging its going in again on the 24th i just want to get as many ideas as possible as i only get about 15miles and the fault kicks in and lowers all the suspension and the special programs don't work so i have to turn the engine off to reset it its driving me insane. :angry: but thanks for you reply i will let them know regards Colin Quote Link to comment Share on other sites More sharing options...
Johna2714 Posted March 8, 2017 Share Posted March 8, 2017 I wondered if you can update on how this problem was eventually resolved? Regards Quote Link to comment Share on other sites More sharing options...
BogMonster Posted March 9, 2017 Share Posted March 9, 2017 I doubt it as the original post was 2010 Quote Link to comment Share on other sites More sharing options...
Geoff321 Posted June 29, 2021 Share Posted June 29, 2021 On 2/12/2010 at 11:24 PM, Colin B said: Hi I'm wondering if anyone can help I've been reading quite a few different forums regarding a continuing problem with a HDC fault. I have a Disco 3 2007 it seems that there is a fault with my one i can drive for a while then my dashboard starts to light up like a Christmas tree and says HDC system fault , special programs failure, Vehicle lowering the only way i can fix it is by pulling over and turning my engine off then back on. By reading different forums i have come to the obvious conclusion that there is a fault with a hell of a lot of disco's i'm wondering why they have not been recalled as i had it recalled over the braking system what does it take for Land rover to hold there hands up and say there is a problem. i have had it looked at by a dealership who said it was a dead battery so they charged it up cleared the faults and said it is ok so i took my car home to find two days later it happened again. I also have developed another problem with the middle sunroof the blind that pulls across will not stay closed when i took it to the dealership i was told its because i have a DVD fitted in the roof lining which was a DVD that fitted by Land Rover and its the one that is sold by them in there accessories Magazine. The weight of the DVD is pulling the roof lining down they said that the clip it fits into is fixed to the roof itself and the roof lining has to be taken out and also the windscreen as you cant get the roof lining out any other way. I absolutely love my disco but Land Rover themselves are much to be desired considering Toyota are going through a rough patch and also the current climate you would think they would be going out of there way to keep customers happy. My warranty has now ran out and Land Rover want £1200 to extend it somehow i don't think i will be extending it. Sorry for it being so long but i feel very strong about these issues THANKS Colin Change ur pollin filter inside glove box my wife’s had same fault and wouldn’t rise took it out tonight all faults gone Quote Link to comment Share on other sites More sharing options...
Nellywelly1960 Posted July 27, 2023 Share Posted July 27, 2023 Is it possible for someone to show a diagram of the offending connector and where it’s located. Quote Link to comment Share on other sites More sharing options...
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