| Author | Message | ||
     White_flashes |
I get a solid check engine light and no fan operation. I checked the fan fuse and it is blown. As soon as I changed the fuse, the fan begins to operate normal on shut off cooldown. As soon as I take it out for a ride, I get another blown fuse. I am now also getting blown ignition fuses in the mix. I will be riding and then ...My XB12S dies. I put a new fuse in and off I go for a little while. Is there anyway these two problems could be related? What could the problem be? I have gone over the wiring harnesses and have found nothing that is shorting or bare. Thanks. | ||
| Deadduck |
chafed wire at the neck? research electrical problems in the knowledge vault, your question will probabaly be answered there | ||
| White_flashes |
I found nothing in the search that talked about fan and ignition problems at the same time. I think that they are somehow related. Just trying to figure out how. Thanks for the impute, but I couldn't find anything around the neck, under the windscreen, or under the seat that was chaffed. Any other ideas? | ||
| Deadduck |
I have done a similar search for the gremlin in Bcools bike and found a wire from the speedo panel was chafed where it runs across the neck of the frame. It wasn't easily seen just by moving the wire cluster around. Start by Ohming out these wires listed here, I have a feeling your problem is going to be the white wire, if the 12s shares the same color as the 12r, where it passes across the steering neck. Another suggestion is to find a service manual for your bike, and trace wires that way. Looking over the wiring diagram on an 04 bolt, wires of commonality are the red wire from the fuse box that support both the fan fuse and the ECM fuse. the red wire leads to a white wire that goes to both the ECM for the speed sensor (8), and to the Speedometer labeled VSS IN (16) from the fuse panel for the Fan Fuse, Y/BN goes to the fan switch then to Y to supply power to fan from switch, the grounded side of the fan is BK from the fan to switch, then BK/O wire goes to the fan control in the ECM (6) from the fuse panel on the ECM fuse, Y wire goes to KEEP ALIVE in the ECM (5) | ||
| White_flashes |
Deadduck, Thanks for the help! My bike is still under warranty, so I think i will have the dealership check it out. I just hate to see it go to the shop knowing I won't see it for a month. The problem just started yesterday on a 100 mile ride. Fan fuse blew and seems like the motor became extremely hot and then the ignition fuse blew. Before the ride home, I changed the ignition and the fan fuses. Fan didn't work, bike became hot again and then Pop went the ignition fuse. I think my fan just might be toast due to all the oil it has been ingesting due to a leaky rear rocker cover gasket. But would a super hot engine condition cause a problem with the ignition blowing a fuse? (Message edited by white_flashes on August 12, 2009) | ||
| Deadduck |
But would a super hot engine condition cause a problem with the ignition blowing a fuse? probably not. Kinda waiting on somebody else to chime in on this one. I would think if the fan has a short, it may be kicking something back to the IGN circuit. I've personally never messed with the fan, but if you have oil leaking all over it, there could be a chance that oil has caused a short circuit in its plug or in the fan itself. If its easy to get to you could try unplugging it and cleaning everything up real good and trying it again? what you'll be looking for, according to an 04 bolt any way is the plug with a yellow wire and a black wire on the fan side, and a yellow/brown wire and black/orange wire on the fuse side. good luck with it. | ||
| Stevenc150 |
If there's a wire shorting through it's insulation, here's a great procedure to narrow it down: To ID the area of interest; place the key in off position, disconnect the negative wire from the battery terminal, place a multimeter set to milliAmps between the negative terminal and the ground wire. If it reads anything other than 0 you have a short somewhere running current to ground. Now start pulling fuses from the block one at a time until the needle drops to 0, indicating you have opened the circuit. Then you will know which "area" the shorting circuit is in. Hope you figure it out. | ||
| White_flashes |
I just checked the bike with the test Stevenc150 described above and the multimeter went to zero without pulling any fuses. I also check all the connections for the fan and spent tons of time checking all the wires around the neck, under the seat, Along the inside of the frame and under the fuse block. I haven't found anything. What should my next step be? Thanks again. | ||
| Stevenc150 |
In that case, you either don't have a wire shorting out or it's Intermittent and shorts against something only under certain conditions. Do the same test again, and you or someone else turn the handlebars side-to-side, tug on wiring harnesses, wiggle connectors, etc. - and hopefully it will show. Good luck. | ||
| Rotor |
@Deadduck, how was fixed your issue ? I have the same problem, fan fuse blowing but only when the bike is running. Fan is absolutly free, no oil, i can run it 20x with the ecmspy actuator test without issue. I've seen the wiring diagram but can't see a speed sensor connection from the fuse box to the fan help needed please (Message edited by rotor on May 24, 2022) (Message edited by rotor on May 24, 2022) |
