Hi there braintrust,

Id like to ask for help in diagnosing a strange problem. Recently I upgraded or replaced the old hitachi compressor for the new AMK compressor from the Hitachi one as my old one was failing.

I have a GAP IID tool - and received the correct firmware to flash after the new compressor was installed.

After some work on installing the new compressor and reflashing - it works BUT it has a weird set of problems

1) Whenever you raise or lower the suspension (which works fine) - the DOWN arrow is illuminated for BOTH actions (so you press up, and the down arrow lights up until the suspension is raised)

2) The suspension will not lock in access mode (the little lock button on the terrain system)

I checked with the IID tool - and all the button presses (short and long, up and down) are being correctly registered.

I checked with GAP and they are stumped. So am I - but it seems weird that the suspension works but the terrain control system is acting all weird


Has ANYONE seen this - (this worked before the reflash to AMK and with the old compressor) - is there some other component that needs to be updated as well?

Help!

Thanks

Alex 2008 HSE B. Grey
Overfinched
NavTV retrofit

Can’t help but I swapped out for an AMK compressor on my 2007 RDV8 did the firmware update as well but I can no longer lock the car in access mode either so will follow this.

Lets see if anyone else has this issue. 2008 HSE B. Grey
Overfinched
NavTV retrofit

I had the same issue on my 2007 which had an AMK installed. Didn't effect me so i left well alone. 2015 4.4 AB
GSXR 1000 K5
R1 1998