shortbloke
Member Since: 20 Oct 2012
Location: Wokingham
Posts: 107
  
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| Suspension fault - Only on long drives |
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So with the troubleshooting of my black smoke and loss of power dealt with. I thought I'd turn to another issue which happens infrequently. Whenever we go on a long journey (> 100 motorway mile) the car has a habit of triggering a Suspension Fault message on the display, and the orange light showing the vehicle with arrows pointing in different directions is displayed. Restarting the car clears the fault.
I've used my copy of AutoEnginuity (which appears to trigger faults when I try and read all codes, so can't be sure how many of these are real vs generated by scanning). I assume it would be this module that triggers the warning.
Ride Level Control Module CAN
U0122 Lost Communications with Vehicle Dynamics Control Module
U0416 Invalid Data Received from the Vehicle Dynamics Control Module
C112f
C1130
Any thoughts as to cause, it's been occuring for > 1 year, and because it doesn't happen all that often I've mostly ignored it. 56 D3 HSE / 05 Porsche Boxster S
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 17th Aug 2014 10:06 pm |
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shortbloke
Member Since: 20 Oct 2012
Location: Wokingham
Posts: 107
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Hmm, just done some searches on the fault codes and found someone with a broken wire in the passenger side connector behind the wheel arch. I know that 2 years ago during the winter the the fuel guage was all over the place, but has been fine since the weather cleared up. I wonder if I need to take a look at that connection block as it's clearly problematic. 56 D3 HSE / 05 Porsche Boxster S
Last edited by shortbloke on 17th Aug 2014 10:38 pm. Edited 1 time in total
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| 17th Aug 2014 10:17 pm |
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johnnychainsaw
Member Since: 24 Nov 2009
Location: West Sussex
Posts: 1222
 
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You may just need your suspension calibrated 
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| 17th Aug 2014 10:27 pm |
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shortbloke
Member Since: 20 Oct 2012
Location: Wokingham
Posts: 107
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Is this something I can get the car to do itself, or is this a trip to a garage? 56 D3 HSE / 05 Porsche Boxster S
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| 17th Aug 2014 10:29 pm |
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johnnychainsaw
Member Since: 24 Nov 2009
Location: West Sussex
Posts: 1222
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One of the site sponsors with a faultmate should be able to do it for you or your local dealer/ indi .
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| 17th Aug 2014 10:36 pm |
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maplecottage
Member Since: 01 Feb 2011
Location: Norfolk
Posts: 3171
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Had the same (or similar) - new bushes sorted it. 
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| 17th Aug 2014 10:58 pm |
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Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
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If it's happening on a drive as you suggest, it'll be your steering angle sensor throwing it's dummy out. Does it happen with suspension lowering, loss of special programs and hill descent? Does it seem fine after you switch off and restart? 
The steering angle sensor knows where the steering wheel needs to be when the car is going straight ahead. This short thread might help: http://www.disco3.co.uk/forum/topic110229.html. When things are worn, straight ahead becomes vague and the car thinks it's turning but the wheel sensors say otherwise so out comes the dummy.
In the short term you can stop this dummy throwing by recalibrating the steering angle sensor but you really need to have the suspension components checked for wear and replace whatever is goosed. My money is on the lower wishbones.  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.
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| 18th Aug 2014 12:43 am |
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shortbloke
Member Since: 20 Oct 2012
Location: Wokingham
Posts: 107
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Car has just had the following replaced at RoverTune
NSF Wheel bearing
NSF Lower Suspension Arm
OSF Lower Suspension Arm
NSR Upper Suspension Arm
4 wheel alignment
The suspension fault on long drives has happened before and after that work was done.
Yes the car is fine after a restart. Don't think I lose the special programs. Will be off on round trip to Northumberland at the weekend so likely will get a chance to get the fault to occur again and detail more carefully the symptoms. 56 D3 HSE / 05 Porsche Boxster S
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| 18th Aug 2014 6:25 am |
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shortbloke
Member Since: 20 Oct 2012
Location: Wokingham
Posts: 107
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Mikey, is this likely to be a fault with the valves, or that troublesome connector in the passenger wheel arch? 56 D3 HSE / 05 Porsche Boxster S
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| 18th Aug 2014 8:12 am |
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Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
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If you've had that work done and a proper 4 wheel alignment completed then you must have the steering angle sensor recalibrated too.
Failure to do so will result in suspension errors usually a few miles into a drive.
I had exactly the same issue as you both before and after having the lower arms replaced. Recalibrating the steering angle sensor is the final piece of the job. 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.
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| 18th Aug 2014 9:11 am |
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Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20817
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I had that fault flag up due to a hairline crack in the rigid plastic pipe.
The fault description was something along the lines of "Too many signals/transitions"
If the car was left idling for around 20 mins, the whole car would self level for no apparent reason. Watching the live values over the next 20 mins, you could watch one corner drop slowly, then it would pump itself back up.
Would never log a fault code when left stationary, only when driving.
HTH My D3 Build Thread
TDV8 Retrofit Build Thread
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| 18th Aug 2014 1:50 pm |
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johnnychainsaw
Member Since: 24 Nov 2009
Location: West Sussex
Posts: 1222
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+1 what Narpy said. It was steering calibration I needed also after similar work not suspension. Geoff sorted it for me took about 10mins
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| 18th Aug 2014 5:30 pm |
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Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
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He does also state that he is having problems reading all fault codes DM. 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.
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| 18th Aug 2014 8:14 pm |
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