I have never seen this AHC issue posted anywhere on mud.
My AHC system is in working order, but sometimes it goes out of order
My two out of order scenarios are
All the lights turn off - L,N,H,Off - high adjustment does not work in this mode but ride quality is very smooth
It is stuck in low until I get out of the and jump up and down on the rear trailer hitch, then it will rise to neutral or to high is I select high. Once it is in high, it will stay in high even if I am driving on the freeway! It has the high light illuminated with neutral light blinking
The simple act of turning on a seat heater or opening up the door will cause the low, neutral, high, and off lights on the dash to all flicker on and off!
They will flicker over ten times in a row sometimes and will sometimes all go out at which point my AHC does not function.
I have done the following 3 things with no improvement
Swapped CPUs and cleaned the wire contacts
Cleaned the fuses
Swapped the AHC relay with the ABS relay
My AHC system is in working order, but sometimes it goes out of order
My two out of order scenarios are
All the lights turn off - L,N,H,Off - high adjustment does not work in this mode but ride quality is very smooth
It is stuck in low until I get out of the and jump up and down on the rear trailer hitch, then it will rise to neutral or to high is I select high. Once it is in high, it will stay in high even if I am driving on the freeway! It has the high light illuminated with neutral light blinking
The simple act of turning on a seat heater or opening up the door will cause the low, neutral, high, and off lights on the dash to all flicker on and off!
They will flicker over ten times in a row sometimes and will sometimes all go out at which point my AHC does not function.
I have done the following 3 things with no improvement
Swapped CPUs and cleaned the wire contacts
Cleaned the fuses
Swapped the AHC relay with the ABS relay