In my truck has unknown driver and won’t start. The key lock cylinder was faulty, and I changed that. I held the positive and negative battery terminals together for 30 seconds went in truck and driver 1 was on information screen. Turned truck off and 45 minutes later it went back to unknown driver. My next step was I changed ignition switch because I didn’t know if key cylinder messed it up. Again, held positive and negative battery together for 30 seconds got in truck had driver 1 but would not start but I assume I need to do key relearn. I waited a hour turned on key and it was back to unknown driver. In addition, when I turnkey off the information screen sometimes has letters and numbers that make no sense. Also, I have a battery shut off switch have used it for years and never a problem. My key fob stopped working long time ago but truck always started and ran good. I also hooked a wire on pin 87 and touched battery and truck turned over but would not start.
Oct 25, 2021 at 12:52 PM
