So today I was working on multiple electrical systems and cleaning up some wiring. I ran a back up camera and cleaned up some audio wiring because a couple of things were done in hast to get ready for a car show. I also tidied up my column volt gauge and switch and relays for the motorized tonneau cover. Since I was doing all that I replaced my shifter on the column because the boot was ripped and was easily seen when one looked through the window. I also battle a door chime issue and figured out that at the bottom of the ignition housing the is a small contact that falls off and causes the continuous door chime that will make you run your truck off a cliff. All this being said, when I started my truck I got an ABS light, OD light blinking and a SES light. Of couse I yelled out WTF now !!!!! The dogs ran like hell and I could of sworn the birds shut up for a second too...lmao

I hooked up my programmer and checked DTC's. Damn there was a crap load.
P0135, P0141, P0155, P0161, P0443, P0446, P0743, P0755, P1000, P1409, P1451, P1549, P1747, P1760.

I could write them all down but I'm afraid this would boggle most minds and it damn near granaded mine seeing all of those at once. Anyone have any Ideas??? It took me about an hour before I realized it was far more simple then expected but almost didn't make sense.

Any takers???

 

Blown fuse, don't remember exactly which one.

 

I couldn't believe it. I had a 10 amp fuse out in the interior fuse block inside the truck, fuse 23. I replace it and dropped one code after a clear DTC's, it was the P0446. I still had 13 reappear immediately after I started the truck with all the same symptoms, It was running like hell and lights flashing all over the cluster. IE. ABS, Service engine soon and OD light. So I went to my fail safe way to track down wiring. I have been an infrastructure installer and project manager for 30 years. I got out my toner, removed the fuse I just replace and put tone on it. I tracked it down to the engine bay fuse and relay block, a white wire. I pulled one thing at a time until I got decent tone with the wand. Took a wire and sorted the terminal to ground and the tone got cancelled. That means I'm on the money. It went to I believe the 85 terminal on the 302 relay. That's the trailer tow/ battery charge relay. I swapped it out with a new multipurpose 20 amp relay that is commonly used on audio when you are turning on multiple amplifiers. Walla!! cleared all the DTC's and none have returned and started running like she should. I researched the relay and found 3 different values to that part number ranging from 20 to 40 amps. I found a replacement with the same part number to be safe. The part number is FOAB-14B192-AA. In my truck the it's the same as the 304 relay, power train control module. I don't claim to be an expert by any means but my ability to track down wiring isn't half bad. I'll chalk this one up as a learning experience for myself.

 

Yep, Fuse 23 is what does that!