Brake Pad Sensor Open Circuit - K-Bikes.com - Excellence in Motion
 
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post #1 of 9 (permalink) Old Jun 16th, 2012, 5:46 pm Thread Starter
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Brake Pad Sensor Open Circuit (Updated)

I have the brake pad wear indication on my dash. The pads are fine. I've seen mention of a zip-tie being a possible culprit. I've disconnected the easily accessable connector closest to the caliper and put a meter to the wires and get continuity so I'm pretty certain that the open circuit is somewhere else.

The question that I have is, has there been any relatively consistent location that this strangling zip-tie has been found to be? If it's pretty deep, I guess that I'm just going to have to tolerate it for the remainder of the riding season an try to sort it another time. Thanks Gents.

EDIT: I found a thread with some helpful info that pointed me to the front pad sensor. When I put the meter on it after disconnecting at the closest junction, it tests as an open circuit. Investigating further. I removed the pads and stripped the rubber/cloth covering from the wires and found the first attachment (sorry, the camera focused on the meter leads and not the wires, but you get the idea). This was located at the first zip-tie away from the brake pad moving toward the connector.

The second picture is my solution. I flipped the ignition on to see if the pad sensor indicator was still on, and it was. I don't know as yet if it will go away when I start it up or if I will need to find someone local with a GS911 (or wait until I get one myself) to clear it.
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Last edited by Wynnded; Jun 16th, 2012 at 8:26 pm. Reason: Found Information
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post #2 of 9 (permalink) Old Jun 16th, 2012, 10:30 pm
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Yep, that solution ought to do it. The only thing different that I did was to make a much smaller wire loop.

Some bikes will reset the brake pad wear sensor light after you ride the bike above 30 mph and brake a few times. Some will need the Dealer or GS-911 to reset the light. All depends on which software version you have . . .

Ken
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post #3 of 9 (permalink) Old Jun 16th, 2012, 11:01 pm Thread Starter
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If anyone notices it, I'll tell them that it's my prototype red-to-green traffic light changer as once I've left the driveway on the bike, I really hate having to put my feet down til the riding is done.

You wouldn't happen to know if it's the older or new software would you? I can say the my bike has the old ECU (and most likely no updates)...but I guess that I know tomorrow hmmm....

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post #4 of 9 (permalink) Old Jun 17th, 2012, 1:26 am
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The older bikes wouldn't reset, some newer ones did.

Might be time for a GS-911.

Ken
Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032

All lower 48 states plus Alaska on the K13GT in two weeks . . .

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post #5 of 9 (permalink) Old Jun 17th, 2012, 10:09 am Thread Starter
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Ahh...Murphy's Law. Thank you.

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post #6 of 9 (permalink) Old Jun 17th, 2012, 6:34 pm
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my bike is a 2007 and has a few software upgrades, and mine will reset on its own. I know because last summer the brake pad light was intermittent.
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post #7 of 9 (permalink) Old Jun 17th, 2012, 6:49 pm Thread Starter
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Thanks. I really have no idea if mine has had any flashes. It does have the BMS-K ECU in it, so I know that it's not sporting the most recent. I did go for a short ride this morning and it has not reset. I'm not surprised. At this very moment I'm ordering the GS-911 though.

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post #8 of 9 (permalink) Old Jun 20th, 2012, 6:55 pm
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Quote:
Originally Posted by Wynnded
I have the brake pad wear indication on my dash. The pads are fine. I've seen mention of a zip-tie being a possible culprit. I've disconnected the easily accessable connector closest to the caliper and put a meter to the wires and get continuity so I'm pretty certain that the open circuit is somewhere else.

The question that I have is, has there been any relatively consistent location that this strangling zip-tie has been found to be? If it's pretty deep, I guess that I'm just going to have to tolerate it for the remainder of the riding season an try to sort it another time. Thanks Gents.

EDIT: I found a thread with some helpful info that pointed me to the front pad sensor. When I put the meter on it after disconnecting at the closest junction, it tests as an open circuit. Investigating further. I removed the pads and stripped the rubber/cloth covering from the wires and found the first attachment (sorry, the camera focused on the meter leads and not the wires, but you get the idea). This was located at the first zip-tie away from the brake pad moving toward the connector.

The second picture is my solution. I flipped the ignition on to see if the pad sensor indicator was still on, and it was. I don't know as yet if it will go away when I start it up or if I will need to find someone local with a GS911 (or wait until I get one myself) to clear it.
Could you elaborate just what you did here....? Did you cut and resolder the wire(s) to eliminate the open circuit. Thanks!

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post #9 of 9 (permalink) Old Jun 20th, 2012, 7:02 pm Thread Starter
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Exact-a-mundo...

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