M880 pin#27 (0 v )

[RickD]

I am installing a M880 and have found the 0v pin #27 seems to have an internal problem,If I use the #11 or #13 0v pins I have proper readings on my sensors. Is this something that needs to be looked into or can I just wire to the other 0v options and not worry about this issue. Thank you for your input

[SprinterTRD]

You have probably shorted +12V to the pin somehow damaging the pin.

Best return it to a MoTeC Dealer for repair.

Do not use 0V Pin 13 for any sensor it is only used for RS232 comms.

[RickD]

Thank you for the info