Join Date: Apr 2003
Location: Northern Colorado, CO, USA
It ain't a broken wire in the cable
Howdy Folks. I need to consult the expert wisdom around here. As you may know, 2 days after getting back from CCR with no problems, I took the LT out for a ride and the slow blink abs warning light did not go out. When I applied the brakes, the general warning light came on steady with the ABS light blinking slowly. During the ride, the speedometer suddenly flopped and died. I immediately thought of the rear wheel sensor cable and was greatly surprised when the speedometer was working when I next looked at it a few miles down the road. The abs warning and general warning lights had not changed. According to a chart I saw in a post here, that combination indicates that one or the other wheel speed sensor circuit is not working.
So, at great risk to the earth continuing to revolve, I resolved to troubleshoot the rear wheel sensor. I took the cable out from the connector up by the rear brake reservoir. That connector gave every appearance of being tight. Since the cable back to the rear wheel speed sensor didn't look to readily come out of the sensor, I took the sensor off its mount.
Measuring continuity from one wire inside the cable sheath to the other at the plug connector, I see 26.6~ M Ohms. I carefully removed a bit of the outer sheath about half way along the cable, and then carefully stripped a bit of insulation of each wire. I measured continuity of each wire back to the harness plug. I get continuity on each wire there. So, I did the same thing about 1.5 inches back from the sensor housing on the cable and get continuity there! Then for good measure, I checked continuity from the harness plug down to where the 2 wires are laid bare next to the sensor housing and get continuity there. Veddy Interesting!
Oh, I should mention that I wiped away a very small accumulation of metallic filings (for lack of a better term), particles? from the center of the sensor. I'm estimating the amount to be less than a grain on the old loading bench scale. Very, very small.
So, Since the bike road back from CCR with no warnings or blinking lights, and it went on the Battery Tender when I put it away in the garage, and the battery was topped off and the brake fluid was topped up by the shop prior to leaving for CCR, and there is continuity in the wires in the rear wheel sensor, anybody got any idea of what's going on other than my usual Negative Mechanical Karma? I really expected to see a continuity failure due to a broken wire in the cable, but apparently, that's not the problem.
Take a risk, give some how-to advice and see if negative mechanical karma really can be contagious through the Internet. Mark Neblett's been down this kind of a road with me before, he lived through it. You did live through it, didn't you Mark?
Ponderin' the Fates, Karl
Disreputable Rode Hard & Put Up Wet Old Deadbeat Geezer
"We're all here because we're not all there"
--Ken & Gene Hunt
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