Fixing a c0800 03 control module power circuit low voltage

If you've been staring at your dashboard wondering why your ABS light is on, you're likely looking for a c0800 03 control module power circuit low voltage fix to get things back to normal. This code is one of those annoying "electrical ghosts" that can make you feel like your car is falling apart, even when it's running perfectly fine. Usually, it pops up when the Electronic Brake Control Module (EBCM) or another chassis-related computer notices that the electricity it's receiving is a bit too weak for its liking. ...

April 26, 2026 · 7 min · Rocko Misios