Thanks very much to both of you.
Problem started when the keyswitch terminal snapped so it was only getting a feed down one of the wires which might have got it confused.
Kev

Problem: Traction Eeprom, Abnormality (61)


When this code is triggered all vehicle functions are inhibited, line contactor opened.

Faulty EEprom on traction logic board

How the error is triggered:
When logic software starts, first it reads the setup option data and the checksum data from the eeprom.
Software compares both data, when there is a difference code 61 is triggered.

You will need to get diagnostic tool and check the setup data and make sure it is set correctly.
I have seen in these truck the data gets corrupted when there is battery problem and has to be reset.

You will need the setup data to make sure you get it setup correctly for your model.

Hello friend.
See your email.
Best regards, Laci