Battery/ Brake Light

[jkhomes]

My Brake Failure warning light has started to flash when I start up the bike. It usually stops once I get around the block. I called the service dept at the dealership, and they thought I might have gotten air in the lines.

The ABS on my 97 RT was really sensitive to electrical issues. The light would flash a lot if the battery was starting to go bad. The battery on my 1200R is about 4 years old, and I am expecting to need a new one soon.

Has anyone had experience with the brake warning light as a precursor to batter failure?

[crewzzn88]

my 2008 does that all the time. once im on my way, the light goes out. everything works just fine.

[Woland]

Correct me if I'm wrong, but a flashing abs sensor is a feature until you get rolling.

[jkhomes]

Yeah Woland, you are right. But this was more than usual. Brakes are working fine, but that light sure made me nervous.

[deilenberger]

The brake warning light warns also if the rear brake light it out. It will still appear to be OK since the ZFE then switches the running bulb over to 1/2 power and full power to work as a brake light.

This is a case where a GS-911 would probably lead you to the cause. It might just be a weak battery, but once the bike is running, the alternator should provide enough voltage for the ABS system to complete it's self-check.

[jkhomes]

Follow up. I left the bike off the battery tender for a week and half. Went to start it and the engine would not turn over, so now here I am on a Sunday afternoon instead of out riding.

Based on Mythbuster or other semi-scientific methods, I would have to say the brake light situation is a definite "possible."

Got a $69 Motobatt from Amazon.com on the way!