Ram 1500 Electrical problem

[Ed in Huntingdon]

I have a 2020 Ram 1500 3.6 Big Horn.
First the tail lights stopped working. Checked bulbs and fuses all okay. Removed battery cables and now the air bag and the Electronic Stability Control indicator lights on dash came and stayed on. Somewhere in the process the high beam light stopped working but if you pull back on the lever they come on.
Need some help

 

[Richard320]

Dash lights may cure themselves if you are just patient. There are countless posts here about dash lights after battery disconnect/replacement. So it's too early to panic about that.

If you have power and the bulbs are good, then I'd look for a bad ground. Forget the fuses - grab a voltmeter and go to the socket or as close to it as you can get and measure across the voltage and the ground wires. If you have nothing, measure again with the ground on a good body ground nearby. Then work your way up whichever side is lacking until you find the open circuit. If you need more explanation, take the truck to a shop, because you can't learn electrical diagnosis on a web forum.

 

[NightRam2020]

I have a 2020 Ram 1500 3.6 Big Horn.
First the tail lights stopped working. Checked bulbs and fuses all okay. Removed battery cables and now the air bag and the Electronic Stability Control indicator lights on dash came and stayed on. Somewhere in the process the high beam light stopped working but if you pull back on the lever they come on.
Need some help

Hopefully it’s not the TIPM.