01-03-2019, 05:26 PM
(01-03-2019, 02:04 PM)iamheero_imp Wrote: To clarify, when I say the light flashes, I mean it turns on and off in a repeating pattern. It's like how it flashes when ABS activates but it's on indefinitely. Ideally, the light is supposed to remain completely on after startup until you reach 19mph (per the manual) and then turn off as you hit that speed, which it DOES at first. However, on several of trips I've taken it will start to flash in perpetuity. Flashing ABS means that ABS module isn't working (again per the manual) and I've tested it out by riding and slamming on the brakes until I lose traction- no ABS activation in situations where it would otherwise engage. It's pretty easy to test if it's working, at least! The question is WHY it keeps failing, which is proving a little harder.
I have only noticed when looking at my gauges at a stop, but I don't think I've noticed any particular trigger event. I did look through the 13-14 service manual I had and went through the troubleshooting I was able to, but as peterbaron mentioned, the real troubleshooting needs to be done with a test tool I don't have. Fortunately for others/Unfortunately for myself, looks like a pretty uncommon problem!
The troubleshooting in the owner's manual says to take it to a dealer immediately, but the service manual says it can happen for a few reasons such as bumpy roads, which I WAS riding on (it doesn't snow in LA but somehow the roads still stink year round!) but I mean, not THAT bumpy. It could also be low tire pressure in combination with crappy roads, apparently. I checked and the pressure was a little low, so I blew the tires up a little more (36/42) and hope that fixes it but haven't had the opportunity to check yet. If this doesn't solve things I'll probably have to go let the dealer run a diagnostic on the module.
As it is an intermitent failure, I wouldn't point to the ABS module. At least not the mechanical part on it. If it was mechanical, you would get the error permanently.
So, most probably, you get the error because the ABS module is receiving wrong information, so you must check:
-tyre pressures (so wheel speed sensors front and rear make sense to the ABS)
-encoders
-wheel sensors
-brake sensors (hand and foot brake levers)
-wiring (<-very likely on "intermitent" electronic failures)
I'd also check fluid level just to be sure, although I don't think this could be the source of an ABS problem.