Hi Clayton,

It would appear that the master controller is not receiving Can messages from the dash display.

1 start checking it out by checking all your fuses are ok and secure.
2 ensure all connections are secure at fuse panel, key switch and battery disconnect switch.
3 check condition of main contractor and pump contactor if equipped with contacts.
4 check termination resistor at dash display wires A7 and a22. Should be 60ohms.
5 check resistance between CANH and CANNL wires at traction controller should be 60 ohms.
6 Check CANNL, and CANNB+ and B- are not shorted to earth or frame of truck.
7 Check CANNL and CANNH Are not shorted to B-or B+.
8 Check the Canbus wiring for loose connections or damaged wiring.
9 If the truck is equipped with electro hydraulics option, check for continuity between the hydraulic mounting plate.
10 if you have ETACC software you may be able o carry ont ETTAC TESTING.

REGARDS Nero.
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