TLSK change out requested by OE. ~~~~~ TLSK change out requested by OE. Refer to MO: 11853546 OE measured 6501 to 6502 resistance fluctuate  Changeout TLSK Ok at 3672. Check DTOR1,2,3,4 ok when DTO mode. Check door able to open /close in RM. Check SIR1, 2 energized when cab occupied. Check AMR1 nad 2 ok when DTO mode Done by Luke 18.12.2023