Hello all. Recently bought a 770D John Deere grader that didn’t come with all lighting options. I’m trying to add a beacon but the switch does nothing. The fuse is in place but has no power. The relay has power. Does anybody know if programming is required? I can’t get ahold of a wire diagram.
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770D beacon
- Thread starter BzDrifter
- Start date
Diesel Dave
Senior Member
Welcome to HEF Bzdrifter 
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You have to access service mode through the monitor and enable the beacon option in machine setup.
Check your messages.
.You have to access service mode through the monitor and enable the beacon option in machine setup.
Check your messages.
Last edited: