Has anyone ever had a failed DC-DC regulator? I have a 2015 FX 5.7 and all 12V accessories are dead. (lights, horn, ABS, backlight to dash) (The 12V to the dash screen and motherboard are fine).
I checked high voltage DC-DC fuse (in cable harness) and it is fine. All 12V fuses are fine. I am convinced this is not a loose wire. Probably not a ground issue given that I have 12V on the other line out of the DC-DC for motherboard and dash screen.
Could the DC-DC has 2 12V circuits and internal fusing?? Anyone else had DC-DC problems?
(Originally, this was an intermittent no-12VDC problem based on start-up temperature outside, and got worse and worse until now there is 12V at all on the accessories. So it wasa slow failure...like how a DC-DC can fail.)
Anyone able to help me?
Thanks,
Phil Daniels
603-321-9245
Author
Topic: DC-DC regulator (Read 782 times)