ABS light on - K-Bikes.com - Excellence in Motion
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post #1 of 4 (permalink) Old Jun 19th, 2007, 6:37 pm Thread Starter
Join Date: Oct 2006
Location: Casper, WY, USA
Posts: 30
ABS light on


I have recently created a bug in my '03 GT's brake system. Seems I had the right footpeg plate and rear brake pedal apart to install footpeg lowering plates. When I fire the bike up after a fairly smooth job I get the ABS light plus the warning light (4 flashes per second) indicating that the ABS is not right. Riding the bike (carefully) proves that the rear brake is doing residual braking only. No pump sound and no brakes, also the brake light is not activating with the brake pedal, only with the front brakes, which are working properly. Looking at the tiny switch that operates the brake light from the pedal it appears that everything is in order. Has anyone experienced something similar?

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post #2 of 4 (permalink) Old Jun 19th, 2007, 7:48 pm
Join Date: Jul 2004
Location: , SoCal., USA
Posts: 1,507

1)That little thin stainless steel strip under the rear brake light micro switch has been known to stop the pedal from returning all the way up and shutting the brake light off, or letting it turn on.

2) No brake light, no ABS!

Bruce C
'04 K1200RS Capri Blue(totaled)
2008 Triumph Sprint ST
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post #3 of 4 (permalink) Old Jun 20th, 2007, 12:35 am
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Join Date: Jun 2003
Location: Fremont, CA, USA
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Yeah, unfortunately, ya need to look where you were last working...
Check out the microswitch metal leaf actuator. There's a bolt head that is supposed to push the leaf up. If it's along side the bolt, strange things can happen.

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post #4 of 4 (permalink) Old Jun 20th, 2007, 2:15 am Thread Starter
Join Date: Oct 2006
Location: Casper, WY, USA
Posts: 30
Bruce, you are the man! Sure as hell I had routed the wires from the microswitch in the wrong place and pinched one of them with the brake pedal return spring, grounding it out and preventing the brake light and rear ABS from working. Got it straightened out!

This forum is truely priceless!

Thanks, Bob
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