(Solution) VVDI-Prog failed to read BMW CAS4-1L15Y
“My Xhorse VVDI PROG 4.4.3 programmer cannot read CAS4-1L15Y, if i followed the ECU wiring instruction- i mean, remove this component. Soldering back after all operations completed.”
Obd365.com Engineer’s suggestion:
1- check you wiring
GND – black line
VCC – red line
BKGD – purple line
RESET – yellow line
XCLKS – green line
GND-C – black line
CLK – gray line
Note: DON’T lengthen the CLK line and GND-C line.
2- take out the component between GND-C & CLK
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