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Help I'm on my bump stops! HDC Fault

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Littlewill

Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484

2015 Discovery 4 3.0 TDV6 HSE Auto Firenze Red

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

2006 Discovery 3 TDV6 S Manual Cairns Blue

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: 10360

2005 Discovery 3 TDV6 HSE Auto Rimini Red

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

2005 Discovery 3 TDV6 S Manual Cairns Blue

I think you mean you had your steering angle sensor recalibrated. Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
I'm not scared, I'm outta here.

4th Feb 2018 7:56 pm

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