Can someone help deciphering the following codes?

Uo-00-88 Med speed can comm bus
Uo 421-94 Invalid data recd from Rt lvl cont mod

Thanks

2008 LR3 HSe

Nav display shows all 4 height sensors as red and vehicle will not raise.
Suspension Fault displays after start-up

 

No clue; where are you seeing those codes? On the LR3's instrument cluster or some kind of code reader? If the latter, which one?

 

It was a scanner at a shop... Anyway took it in to a shop and it showed 7 codes... Looks like compressor and valve and drier are toast. LR3 has 102k miles, is that a normal time for it to go out?

1800 bux to fix

 

The mileage is reasonable for the compressor to be toast, just depends on the usage in that time. What isn't so reasonable is the $1800 estimate. I could do better than that at a dealer!

What happens when you cycle power? Do the faults remain? A lot of shops just want to throw new compressors at the EAS; and many faults share symptoms, so make sure that you're confident in this diagnosis.

 

These are communication faults- I would not just assume the pump. Does the pump turn on or make noise? Anything else wrong with the LR3? Battery concerns? Need a complete vehicle scan.

U0421-94 Invalid data from air suspension control module; the terrain response has detected that the air suspension had operated in a way or at a time that it had not been commanded to operate

According to the LR3 Workshop Manual, the Terrain Response Control Module stores this fault. With the limited info, I cannot state one way or another on what is wrong.

Does the vehicle low and high range work correctly? Other module must be storing faults, what are these faults?

 

Well here are the actual codes they pulled:
U0132
C1131
C1A20
U0421
U0132
U0159
U0127

Where to begin....

 

C1131 and C1A20 are the faults to address. These are air suspension faults and C1A20 is 99.9% of the time a faulty air suspension pump. You can replace it the original style or with the update AMK pump (Arnott Sells one similar to the AMK). You will need to update the air suspension control module.
C1131 is an air suspension system fault; This fault most likely related the pump but leaking air springs, faulty height sensors, etc. can cause this. Address the pump first and hope this goes away.

 

Thanks,

Replaced the compressor, and drier with the valve, looks like it all came in a kit from Land Rover, not cheap. $1400 So far it has fixed the issues after updating the software.