Flashing abs/brake light on dash

[Fletch125]

Decided to do the right thing and use my parking brake on an incline. Got in the truck to leave today and now my abs/brake light is on and flashing with the chime. Brakes work fine, fluid is fine, and I cycled the parking brake pedal a few times to make sure it isn't stuck. Any ideas?

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[ColdCase]

The easies thing would be to read the code with a OBD scanner with ABS capability, the scanners part shops use for free code reading often can't read the ABS codes.

Otherwise, perhaps the parking brake switch is dislodged or broken.