I have a 2020 ram 1500 ecodiesel and am getting codes P06BB (Cylinder 3 Glow Plug Circuit Performance) and P0673 (Cylinder 3 glow plug circuit open) which are for glow plug #3. The warm up squiggle come on then takes a few seconds to start. I have tried resetting the codes but the come back. When it first happened I high voltage code showed P0563 once and hasn't come back. In the past have gotten p026c but doesn't even trip the engine light. The dealer recently updated the PCM to help with remote starts and now this, I never saw the warm up squiggle line before the update but it would have trouble remote starting before the update where it wouldn't even try to start, now it will remote start and second later turn off. What should I start with checking? Could it be a simple replacement of the #3 glow plug? TIA for the help. The truck runs fine otherwise