Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
  
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From Vehicle dynamics control module.
Trouble codes
VIN: SALLAAA186A358822
Diagnostics time: 2022/08/03 16:29
Path: Automatic selection > Diagnosis > Auto scan > Read codes >
1. U0102-87 Lost communication with transfer case control module
Intermittent
2. U0132-87 Lost communication with ride level control module.
Intermittent
From Ride level control module
VIN: SALLAAA186A358822
Diagnostics time: 2022/08/03 16:02
Path: Automatic selection > Diagnosis > Auto scan > Read codes > Spain > Trouble code help >
1. C1A13-64 Pressure does not decrease when venting gallery.
Intermittent
2. C1A36-01 Exhaust valve
Permanent
This is all I managed to save so far. Will have another go tomorrow. A bit of a learning curve!
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 3rd Aug 2022 6:05 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
 
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So U codes can usually be ignored.
The last 2 codes point to a problem with the exhaust valve in the compressor. (or wiring fault to it)
I've kinda lost what has happened to your car. But you need to know if these are historic codes (with old compressor) or current codes. (if you have an orange light on they will probably be current codes)
So once you have looked at all the codes. (no need to put them here), Clear them all. Drive the car a mile or so. And then re read the codes and see what comes back, suspension wise.
Last edited by Pete K on 3rd Aug 2022 7:06 pm. Edited 1 time in total
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| 3rd Aug 2022 7:02 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
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Gerald in Sweden wrote:In the end I had replace the compressor, as the garage seemed incapable of finding a drier unit. Everything worked fine afterwards, they said, but now the suspension fault light comes on immediately. The front right suspension does not rise, the rest is ok.
Any suggestions? The new compressor is a different make from the one removed. Does that matter? The garage tried hard but couldn't get the suspension to level up.
So how is the front right currently ?
have you dared to put the car in off road mode ?
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| 3rd Aug 2022 7:05 pm |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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The front right is down very low.
I can't put the car in off road mode as the dashboard says that there is a suspension failure as soon as the ignition is on.
I will clear the codes as you suggest and will report back!
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| 3rd Aug 2022 7:17 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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Do you have the 4x4 screen? if so, is the front right showing a 'normal' height or impossibly high or low?
Might be worth checking the height sensor is attached to the suspension arm correctly and hasn't become detached, flipped the other way or wiring damaged / corroded.
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| 3rd Aug 2022 7:35 pm |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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I don't have the 4x4 screen, I will go underneath tomorrow to look at the height sensor
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| 3rd Aug 2022 7:39 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
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Did you manage to keep the old compressor ?
If you get exhaust codes back again are clear it seams like you need to return it to the garage and say the compressor they fitted is no good !
If you have the old compressor get one of them metal caps on order.
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| 3rd Aug 2022 7:43 pm |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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I do have the old compressor. I think the new one works, the poor distribution of the air seems to be the problem. When it was fitted, apparently the suspension worked correctly. When I collected the car it had sunk a bit on the right front, in the car park. It has got worse since, with the red warning light on above 40 kms/hr.
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| 3rd Aug 2022 7:51 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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It's also possible as bit of desiccant has worked it's way through to the front valve block and is holding it open or jammed it in position preventing the airbag being filled.
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| 3rd Aug 2022 8:08 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
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The compressor creates air, but doesn’t want to release it.
Maybe you can just plug the old compressor in electrically only.
See if that stops the light coming in immediately when the engine is started. (That would prove if it’s the compressor or car at fault )
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| 3rd Aug 2022 8:09 pm |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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I cleared the codes this morning and did a short drive. The following is from the Ride level module.
Diagnostics time: 2022/08/04 09:03
Path: Automatic selection > Diagnosis > Auto scan > Read codes >
1. C1A13-64 Pressure does not decrease when venting gallery.
Permanent
2. C1A36-01 Exhaust valve
Permanent
It appears that something is stopping the air coming out of the gallery
I haven't had time to connect the old compressor yet, will do tomorrow.
Thank you for your replies, I am grateful.
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| 4th Aug 2022 3:50 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
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I’m guessing here.
But if the first code is algorithm based test then you may still get it if you connect another compressor without connecting the air pipes.
If the second code is an electrical test then this should go away if you connect another working compressor electrically
So don’t worry if you still get one code
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| 5th Aug 2022 9:58 am |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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My wife got fed up with my slow progress, so she took the car to another garage. They said that the new compressor is faulty and needs to be changed. Therefore we are going back to the first garage, telling them to sort it out. We discovered that, in Sweden, there is a 2 year guarantee on new parts, so the first garage has to sort out the problem. Updates will follow next week
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| 6th Aug 2022 6:18 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
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Well the second garage sounds ok.
Good on the wife 
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| 6th Aug 2022 6:55 pm |
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Gerald in Sweden
Member Since: 07 Jul 2022
Location: Karlskrona
Posts: 45
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An update.
The first garage kept saying that the compressor is fine and they couldn't do any more. So I went there with some pages from a file that I found on this forum. "Land Rover factory D3 air suspension description". The mechanic wouldn't admit it but I could tell that he had not realised that the air unit is more than just a compressor. He agreed to take a further look in a week or so!
The car had the orange light on straight away and the red light came when going more than 40 kms/hr. When I got home I took off the compressor cover and found that the "Pilot exhaust valve solenoid and temperature sensors harness connector" was loose. With a big effort I managed to get it to "click" together, and the the suspension worked normally!!!!
Fingers cross it will stay fixed, time will tell. I am not impressed by either garage, basically relying on computer readouts rather than having a good look.
Many thanks to those who helped, this forum is extremely useful.
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| 14th Aug 2022 2:58 pm |
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