Fault code from ISTA

[Fast400]

I'm getting a fault code from ISTA that reads as follows: D015FC. Message (ambient brightness status, 264.6.8) missing, received by ICM

It doesn't show up in the car, but I would like to know what it relates to. Anyone ever get this error?

[Fast400]

Could this be related to the level sensors at the rear shocks?

[Almaretto]

Usually ISTA+ gives you additional details and series of tests to fix and clear faults.
Did you check Action Plan?

[Fast400]

The action on this was vague. Mentions 9-16v being received by the icm, but not from where

[M335]

Originally Posted by Fast400

I'm getting a fault code from ISTA that reads as follows: D015FC. Message (ambient brightness status, 264.6.8) missing, received by ICM

It doesn't show up in the car, but I would like to know what it relates to. Anyone ever get this error?

Hey mate, I got the same code D015FC together with CD8E10.
Have you found out what was the issue?
Thanks in andvance.