boscoe
Posts: 30
Joined: Thu Apr 12, 2012 10:09 am

U1073

Wed Feb 12, 2020 12:24 pm

Hey everyone, anybody know what's up with a U1073 code," bus off" ? I have intermittent exclamation but car seems to drive OK. Thanks

kiev
Posts: 1055
Joined: Sun May 03, 2015 7:15 am
Location: The Heart o' Dixie
Contact: Website

Re: U1073

Wed Feb 12, 2020 6:38 pm

That is a DTC to indicate a CAN Buss error, in that the EVCU thought the CAN buss was OFF.

What is the condition of your 12V aux battery? An old, weak, or worn out aux battery can cause a multitude of errors including spurious faults of the CAN Buss.
kiev = kenny's innovative electric vehicle

boscoe
Posts: 30
Joined: Thu Apr 12, 2012 10:09 am

Re: U1073

Thu Feb 13, 2020 1:32 pm

Hey Kiev, yeah that car was just in the dealer to replace the vacuum pump. They indicated the battery (aux) was ok but, i know it is old. I'll try changing out,see if improves. Thanks for the reply!

Return to “General Technical Discussions”