Your Coding as posted (Central Electronics 09)
A2 07 DA 23 40 04 15 00 00 14 0A 00 0F 00 00 00 00 19 55 03 5C
As it should be:
A2 07 DA 23 40 04 15 00 00 0A 00 00 0F 00 00 00 00 19 55 03 5C
That should clear up some of your issues.
Front Side marker lights are tied into the tail lights, and will be dim after installing LED Tail Lights.
My solution was JAMSTRAIT LED 194 devices (4-LED Array) which will give a brighter appearance.
I am not so sure on you BYTE 02, HEX DA
This is Binary 1101 1010
BIT 6 is set to "1" Side Turn Signals Lights Installed.
I have never seen a MKV Jetta with this feature.
BIT 2 is set to "0" Cold Diagnostics active, this should be set to "1"





