Aterriblesound Posted August 30 Share Posted August 30 I have only one high beam. My Mack dealer told me it was very strange to have a light problem and no check light. Both low beams work fine and no other light problems anywhere. The dealer told me if I unplug it and try to test anything that I might get the check light and the plug might not work at all to check with a test light. I'm not sure where to begin checking. My second issue is my radio shuts off after one hour, I have to turn it on every time I start the truck, and if I forget to turn off the radio when I turn off the truck it stays on. I've read that it can stay on with the key off and the shutdown timer is a safety feature so it seems like it's not getting power from the ignition. Is there a fuse that sends separate power from the ignition to the radio? Thanks for taking the time to read. Quote Link to comment https://www.bigmacktrucks.com/topic/74512-2020-an64t-couple-of-electrical-problems/ Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.