3120RL none of tank sensors working

[mpd2001]

I have been searching but can not find any info. On my 2021 3120rl none of my tank guages are reading on my incommand. Is there a fuse for the tank sensors or is there a common hookup that would cause all 4 sensors to not read? I'm not sure where to start. Thanks

[ChuckS]

All tank signals come into the BCM as indicated with this pic I’ve attached .Simce all tanks are not reading you either have no inout signal from BCM to each tank sensor unit or you have a bad ground

Use your multimeter and you should be able to find the issue pretty quickly

[mpd2001]

Originally Posted by ChuckS

All tank signals come into the BCM as indicated with this pic I’ve attached .Simce all tanks are not reading you either have no inout signal from BCM to each tank sensor unit or you have a bad ground

Use your multimeter and you should be able to find the issue pretty quickly

Thanks Chuck, that's super helpful. Now I have a place to start. Thanks again

[mpd2001]

Well I finally pulled the underbelly to investigate the sensors mainly out of curiosity, Turns out it was just a bad crimp on a ground wire at the first tank which must ground all of the tanks, they are working now not accurate but working. Maybe now i'll see if I can clean them.

[twindman]

mpd - I think the consensus around here is tank censors stop working after several months (except fresh water and maybe grey tank). Pretty hard to keep them clean.

[mpd2001]

Originally Posted by twindman

mpd - I think the consensus around here is tank censors stop working after several months (except fresh water and maybe grey tank). Pretty hard to keep them clean.

Yea I am in that same group, It just annoyed me that they were not working at all, Another bonus of being retired and away from the cold, I have time to waste on stuff like this. lol