Volvo FH LCM control unit swap

**electro10** · 16th March, 2021, 05:00 PM

Hi all,

For a VOLVO FH, I have the LCM control unit damaged.
I bought an used part, but I need change the VIN number. On dump, I found VIN number and changed, but the unit doesn´t works. So, I think that there is a checksum. Someone knows how calculate this?

Partnumber: 20815236

thank you

**aboyam** · 25th March, 2021, 01:24 PM

Originally Posted by electro10

Hi all,

For a VOLVO FH, I have the LCM control unit damaged.
I bought an used part, but I need change the VIN number. On dump, I found VIN number and changed, but the unit doesn´t works. So, I think that there is a checksum. Someone knows how calculate this?

Partnumber: 20815236

thank you

can you post a photo for the inside board