| Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Groups · Profile · Donate ·
Log In
|
- You are currently viewing DISCO3.CO.UK as a guest - Register to take part or Log In
benlawers
Member Since: 27 Nov 2011
Location: Perthshire
Posts: 23
  
|
This one is a beauty. I’ve already posted somewhere but it gets better (and still isn’t fixed!).
2005 D3 HSE
Press brake pedal and ping, HDC fault, suspension lowers.
Brake switch and lights all swapped and changed - nothing different - and interestingly the brake lights don’t work unless they’re shorted at the switch (switch removed).
Red wire at switch has power.
THIS IS THE BEST BIT I JUST DISCOVERED YESTERDAY HAVING ANOTHER PLAY:
Remove brake switch totally from the pedal box but keep wiring connected, press the brake pedal and instantly, HDC fault and suspension lowers. Try same with switch depressed by hand and press the brake pedal, exactly the same.
I’m completely confused as now, unless corrected, nothing electronic is connected to the brake pedal.
Completely nuttcake - any thoughts? 2005 Disco 3 for fun
2014 Disco 4
2016 Disco 4 Landmark
|
 24th Dec 2018 10:20 am |
|
|
Greg9504
Member Since: 10 Mar 2015
Location: Ottawa, Ontario, Canada
Posts: 50
  
|
Have any codes?
Read this thread, good diagnostics provided by Robbie and Martin
https://www.disco3.co.uk/forum/transmissio...37607.html
I had the corroded wire as in that thread. That may not be your problem but that thread details the various wires going to the brake switch (see post by Martin). 2006 SE 4.0 V6 with rear locker
|
| 27th Dec 2018 3:23 am |
|
|
discovirgin
Member Since: 09 Sep 2011
Location: Aberdeen
Posts: 32
|
Having this HDC fault on my D3, mostly on the cold mornings battery is about 5 years old, one notable issue is the lack of the rear parking sensor!!. Once car is started and then stopped and restarted no warning and parking sensor works fine! After being out last night I took battery voltage of 12.55V, this morning before starting it was at 12.25V, I think a new battery is required??? Would appreciate any thoughts before forking £100+ on a battery
Thanks
|
| 12th Feb 2019 12:32 pm |
|
|
Greg9504
Member Since: 10 Mar 2015
Location: Ottawa, Ontario, Canada
Posts: 50
|
Could be the brake switch. He is how to tell:
- cold morning (less than -5C usually)
- start car, do NOT press brake pedal
- should see no warning lights
- quickly depress and release brake pedal
- wait 2 seconds
- DING!
Curse, pump pedal a bunch of times, turn car off then on, go on your way.
If you want to be sure you can use the IID tool and monitor the two brake signals. You will see the one turn on/off at the same time as you press/release the pedal. The other will be delayed when you release the pedal resulting in the fault.
I'll try to grab a video of it on mine. Been doing it consistently when below -5C (which is like every day in this winter hellscape I've chosen to live). 2006 SE 4.0 V6 with rear locker
|
| 15th Feb 2019 3:34 pm |
|
|
Greg9504
Member Since: 10 Mar 2015
Location: Ottawa, Ontario, Canada
Posts: 50
|
Here's a video with the IID tool showing the slow to respond brake switch causing the faults:
2006 SE 4.0 V6 with rear locker
|
| 17th Feb 2019 5:55 pm |
|
|
Tripe
Member Since: 28 Jun 2015
Location: Tasmania
Posts: 285
 
|
|
| 17th Feb 2019 10:19 pm |
|
|
|
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
|
|
|
DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
|
|
DISCO3.CO.UK is independent and not affiliated to Land Rover.
