jgray33

ok so what i have found out by trial and error Did lithium conversion 48v battery - when doing conversion had only 12v battery hooked up and couldnt get anything to work - hooked up only 48v battery and disconnected the 12v battery and could get the dash to come on and had power to wheels but kept burning up 12v relays i was trying to use ( come to find out the 48v charges the 12v battery but the small battery is for the wench) thought i had a ground wire that was shorting out - took down wire looms and traced wires - all looked good The 12v relay i was previously referring to - needs to actually be a 48v relay because it pulls off the 48v system (and in the manual states 48v relay) Hope this helps someone!

So the 12v at pin 86 with ign turned to acc- what are you saying is the control circuit? the fuse panel by 12v battery or the instrument panel at dash?

I am talking about the 12v 30amp relay (main relay combination) not the large 30amp fuse - the Hisun tech i spoke with said the instrument panel and switches should all still function without the main battery packs in place bc they run off the 12v battery. thanks for attaching the service manual!

Jarheadtx if ur battery is good - you may check the small 12v 30amp relay with the four wires going to it

Hello I have had a very similar issue and trying to troubleshoot it as well, I recently inherited a 2017 E1 and currently doing the lithium update, so the AGM batteries are out of the unit. The guy i purchased it from said the instrument panel and switches were flickering prior to buying and he changed out the small 12V 30amp relay by the 12 V battery (but unfortunately he put a 12 V 80amp relay) and said the panel and switches worked for a day and then stopped working. I am hoping that due to the 80 amp relay did not fry the instrument panel. I switched the relay back to a 12 V 30 amp relay but the instrument panel is still not working. On the back of the instrument panel I do have 12.8 V at the purple wire with the vehicle off and in the accessory key position. With the key in the accessory position I do not have any other hot wires to the back of the instrument panel. I have checked the ignition switch which has continuity in the accessory position. Wondering if anybody has ideas as why would not be getting accessory power to the back of the instrument panel with the key in the accessory position. Have ordered a new fuse box relay to see if one of the relays was fried by the 80 amp mistake (all the fuses look good in the fuse box). thanks