I have 2002 K1200LT with 42k miles on it. The other day I was searching for an HID headlight problem and pulled all of the fuses, one at a time, in the 3 fuse boxes under the seat. I checked each one and then put it back in the same spot. All checked good. This morning is the first I’ve ridden since then and the brake failure light started flashing along with the red triangle, doing what some others here have called the “wig-wang”. I don’t think it did it right away (or maybe I just didn’t notice as I pulled out of my neighborhood), but for sure within a half mile away. Could this have anything to do with pulling all of the fuses the other day?
If indeed it is a 2002, then you have the iABS servo assisted ABS. To troubleshoot these, we need to know the EXACT flashing sequence OF BOTH WARNINGS after an ignition ON cycle.
Do not touch the brakes while you do this:
1) Turn ignition ON, and WAIT at least 6 seconds to let the ABS modulator finish the internal self check.
2) let us know what is the flashing mode of each 2 red warnings: either steady, OFF, slow flash , or fast flash
(slow flash is defined a 1 time per second , fast flash is 4 times per second)
After noting steps above, apply front brake lever for 2 seconds then release: does the flashing sequence from above changes ?
Do the same for rear brake pedal.
Shut ignition OFF to save Battery.
ON THE OTHER HAND, if it does fault only after some riding time, then we still need to know the sequence of both Warnings PLUS the conditions (where you applying brakes when the fault happened...)
The MOST COMMON fault is both warnings having a Slow Alternating pattern (1 time per sec) cause by a "low fluid" condition in the 2 sections reservoir. This DOT4 reservoir is located on right side , behind side case (see attached photo).