Steps:
1. Module 46 Central Convenience > Security Access 16 > 16017 (use this access code, not the one the ross-tech suggests)
2. Adaption 10 > Channel 181 >Read
The value you get is 65535 (at least that was mine). When you convert that to decimal it comes out to 1111111111111111. Bits 8,9,10,11 code for the reverse lights (1111RLRL11111111) so when you convert them it becomes 1111000011111111. Convert that back to binary and it becomes 61695
3. Enter 61695, hit test then save. Done.
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