You should have NO problems running a heated vest, heated grips and the parking light and low beam (always on) all at the same time. (I run 180w of lights 2 * 35 HID Twin Main and Low together and my 2 * Halogen Fogs with no problems
Do you carry a Volt meter to check on the batteries charge? if so is it steady and does the bike fire up first time?
Have you checked the Batteries connectors to make sure they are tight and made sure they are covered with conductive grease?
Have you checked the batteries water level?
How is the Vest connected to the bike?
Does the light come on only when the vest is on?
............After checking the above we can rule out the Battery.........
Once that’s ruled out we can then check the ABS
An ABS sensor can be checked simply by spinning the wheel and checking for an output voltage. A sensor that is open circuit is failed. If the air gap between the sensor and toothed wheel is too great the voltage will be low
And the SPEEDO is still RUN from the REAR, even if you have ABS, so make sure it’s clean and that the rear tire sensor bit is mud free..
Those are the exact checks that I would make if I was on the road with you. Now I would also remove the front of the light housing and look for wires that are broken frayed or generally not where they should be, as it's seems to be intermittent fault that’s where it will be if it’s wiring based
But please let me know what you find, as I keep a Database (sad I know) of things to help me diagnose my little Dakar when she’s poorly
The ABS warning light sequence includes different flash sequences for different errors. These are known only to BMW (at present). The simple rule is, if the light is on you have full non-ABS braking, but may not have ABS. When the ignition is keyed, the ABS will test its components (you will hear clicks etc. as the modulators fire) and should reset if disturbed by a minor fault. If all is well the ABS light goes out. ABS cannot test its sensors fully until above 15kph. Below this speed you may not have ABS. Most systems do work down to about 7kph. The light will not come on again if both wheels decelerate in a normal way. Stoppies or wheelies may be logged as ABS faults and bring the light on.
Flashing at a frequency of once per four seconds indicates the ABS has been switched off by the user. You need to turn the ignition off and back on in order to re-enable ABS
Last edited by juddadredd; 6 Nov 2007 at 15:01.
Reason: messed up the font