Some question about VCDS and LH/CH

pumson

a5 8t
Joined
Nov 9, 2023
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Hello, I have recently owned an Audi A5 8t 2009 and I am trying to come to terms with what the previous owner did. Please advise me. The LH/CH function is activated in the "car" radio menu. Unfortunately, when I try to start it, it continues. The computer indicates "power management module error"? I wonder if the previous owner simply tried to activate various functions via VCDS, having no idea how it should work properly.

I think the previous owner was messing with the computer?
FIS functions were enabled, such as "lap time" and checking tire pressure (despite the lack of sensors).

I would first like to find out if the light/rain sensor is necessary for the operation of the LH/CH system, to rule out possibly the module. Can this energy module be bypassed via VCDS? I understand where this is leading, but I'm trying to come to terms with the ideas that have already been introduced here.

1. Is a light sensor necessary for the system to function properly?
2. Is it possible to temporarily disable this power management module via VCDS?

If it should work without a light sensor, I can still handle it, but I don't want to blindly try to look for a hole.