I fired my truck up this morning and had no radio power and later discovered that my power locks don't work by the remote or on the door switches. First off, all fuses are fine. I pulled the radio out to see if there was power going to it and there is not. There is turn on power but no constant power at the radio harness plug. I'm just guessing that the power locks going dead at the same time are more than a coincidence. That said, I'm lost as to why there is no power to the locks or radio since all the fuses are good?? Any ideas as to what the heck could be wrong?? HELP!

 

I know you said that all fuses are good, but I had these exact same symptoms and I said the exact same thing. Turned out to be my IOD (Ignition On Draw) fuse. To be honest with you, I'm not entirely sure where it is located. But this should at least give you something to go on, if you haven't already figured this problem out.

 

Thanks for the tip but yes, I did figure it out - and I'm ashamed to admit it was indeed a fuse. I went back and checked them a 3rd time and did not get power at one fuse. I could swear it lit up the test light prior to the 3rd round of checking fuses. I pulled it out and sure enough it was blown. Incidently, this fuse powers EVERYTHING that is powered up without the ignition or accessory circuits being live. I literally lost radio memory, courtesy/dome lights, OD display, power locks and key remote receiver power, door/key/headlight chime, horn and other stuff I can't remember. In my defense, it was minus eleventy bajillion degrees in a wind storm when I was trying to check for the problem.

 

Yep, that was the same thing that happened to me. Glad to hear that you figured it out. I didn't, and ended up having to take it to the dealer. Boy did I feel stupid when they just immediately pulled the fuse and replaced it and everything worked.