Air suspension faults when cold out

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LR4Slavo

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Has anyone run into issues with air suspension faults when it's below freezing? I have now seen the issue a couple of times, first time it was a couple of weeks ago when it was 20 below, I didn't think much about it as the issue and codes cleared up once it warmed up outside. It happened again this morning with not nearly as cold weather (10 F), have yet to run the codes, seems as though the air suspension is sticking in the cold, I can hear the air compressor kicking in but not much movement on the suspension.
 

ftillier

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I just had this, scanned for codes, and it was an algorithm error due to inputs being bad somehow. I don't recall exactly, will scan again if needed. I cleared it and it came back, but the car was still cold (spent a week parked on the mountain). In my case there was no issue with the suspension adjusting (though the front had sagged, need to clean out the front valve block again).
 

Rover Range

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If you have moisture in the air lines, it can freeze and restrict air flow.
 

Rover Range

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There is an air dryer ( desiccant) in the air compressor housing that should remove the moisture in the incoming air.

You would have to blow out the lines and solenoid valves and see if that helps.
I would suspect that the front solenoid valve would be more susceptible to freezing, than the rear , as the rear solenoid valve would get heat from the exhaust pipes.
 

Kristina

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Mine did the same after a night of freezing rain. It cleared itself after it warmed up. GAP tool returned this: C1130-66 (28) Air spring air supply - Algorithm based failure - signal has too many transitions/events
 

ftillier

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Mine did the same after a night of freezing rain. It cleared itself after it warmed up. GAP tool returned this: C1130-66 (28) Air spring air supply - Algorithm based failure - signal has too many transitions/events
That's the same error I got. Not sure if that's coming from the height sensors, or some other pressure sensor. What signal is it referring to, anyone know?
 

Rover Range

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"Too many transitions/ events" is usually from the suspension height switch being cycled too many times in a row.
 

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