LR4 Air Suspension Fault - Inflating too fast?

[JangoSW]

Took my LR4 in bc of a suspension fault alert. (I couldn't get a fault to readout on my devices.)

My usual mechanic said the code on his device said the suspension air was coming in too fast, meaning there might be dirt keep the inlet open, etc.

I've not experienced any change in the suspension. Goes up and down no problem. No noises etc. This motor was replace five years ago when a AAA guy damaged it changing a tire.

He wanted to replace the Suspension Control Module for $830, but it wasn't a guarantee it would work. Not feeling like a ***** that day, i told him to wait.

Any ideas?
Thanks
S

 

[itsaguything]

Lets start with what LR DTC codes were thrown, please?

 

[JangoSW]

Sorry, just getting around to it. The code is C1A18. The fault warning pops up intermitently. No problems with the car's suspension performance so far.

Do I need to replace the rvh000095?

Thanks
S

 

[Rover Range]

Replace the air suspension compressor.

 

[JangoSW]

Replace the air suspension compressor.

The compressor, not the valve control module?

 

[Rover Range]

Compressor. So you don't have a repeat repair.

 

[JangoSW]

I replaced the compressor, but I'm sill getting the same faults, periodically. Do I need to replace the suspension valve next? Thanks for the help!

rvh000095

 

[Rover Range]

If your old compressor was a Hitachi. The chassis control module will have to be reconfigured for the new compressor.

 

[JangoSW]

I'm not sure what I have now. The OEM one was broken by a AAA guy, then my shop put in this Arnott, and finally I switched out with a random chinese one.

 

[Longtrail]

With the gap tool you can see what the RLM module is flashed with (Hitachi or AMK), I suggest trying the alternative from it's current setting. I had a different issue but applying the correct firmware fixed all my issues; here's the thread where I document my journey:

2012 LR4 Reluctant to lower from off-road suspension mode

Here's the exhaust valve opening just after ignition on: The resulting gallery pressure (time axis is different because of the software being used) Driving down the road this then happened to the gallery pressure at the same time that the C1A13-64 triggered: I'm losing my mind on this one!

www.landroverworld.org