Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
Help I'm on my bump stops! HDC Fault
Whilst taking the dogs for a walk this afternoon I got the dreaded BONG! HDC Fault special programs unavailable BONG! suspension lowered. I drove very slowly about 1 mile back home and switched the engine off and back on again. The disco started the suspension raised quickly and the pump stopped running. I drove off again and within 10 minutes of driving BONG HDC Fault special programs unavailable suspension lowered. Turned it off and on again everything back to normal. This time I went straight to local indy who I use and got him to read the fault codes using Auto logic. The following fault codes were stored.
p132B-22 Turbo Boost Control - Signal amplitude >Maximum
P023D-21 Manifold Pressure sensor correlation - Signal amplitude
P2199-21 Intake Air Temp 1/2 Correlation - Signal amplitude
P132b-21 Turbo Boost Control - Signal amplitude
Other codes were stored but he said they would be because the engine faults had disrupted the signals and caused the other control modules to have a fit.
Hopefully someone will be able to help me with this please.
Thanks
30th Dec 2017 11:49 pm
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
Brake bulbs/switch on brake pedal can cause similar and cheap to check.
Andi.
31st Dec 2017 11:14 am
Littlewill
Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
Hi thanks for that. I have recently replaced the brake pedal switch and have also upgraded the rear lights to disco 4 LEDs do theses suffer with the same issue?
31st Dec 2017 5:42 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10362
clear the codes and see what is the first one to come back.
maybe it needs a new MAP sensor
31st Dec 2017 5:50 pm
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
Dont know to be honest, have you got the originals to re-fit to check.
Andi.
31st Dec 2017 5:52 pm
Littlewill
Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
Will have codes re read as its now doing it on every journey. Going to replace brake switch tomorrow if I can find one locally to me.
1st Jan 2018 9:07 pm
Littlewill
Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
Just to come back to this the cure was to have my wheel sensors "zero'ed" after having a "proper" (don't go near kwik fit or Bushes neither know a thing about discovery's!) four wheel alignment. The sensors where saying my drivers side front wheel was 90 degrees out so the Disco though she was crabbing so through a series of faults.
I hope this helps someone!
4th Feb 2018 7:14 pm
Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
I think you mean you had your steering angle sensor recalibrated.Mods:
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