| Author | Message | ||
     Bluzzit34 |
I have been riding around this afternoon in Phoenix, above 100 out here. Fan hasn't come on once. Fuse is good. Initial inspection of wiring shows no defects. Any other solutions to try before I try to go through the whole wiring harness? | ||
| Sifo |
Did it come on when you shut it off? I've been surprised sometimes when my fan isn't on, but it all checks out, and always comes on when I shut it off. (Message edited by SIFO on August 06, 2010) | ||
| Sifo |
I guess the next question would have to be will the fan run with 12v power? Was the fuse checked visually or electrically? They can fail and still look good. | ||
| Bluzzit34 |
No, didn't come on at all. Its never done this before either. | ||
| Bluzzit34 |
I checked it visually. I will go over it with my multimeter once it cools off a little bit outside. Its miserable out there. | ||
| Sifo |
It could also be the temp sensor, but you would likely have other issues with that. You can check that out if you have ECMSpy. In all likelyhood your fan has bit the dust though. They are known to do that. | ||
| Bluzzit34 |
Yeah, I'll hook it up to ECMspy also. No engine light on though. Would it just stop working like that though? Or would there be signs of pre-failure like loud noises or whining? Well, I'll check it out in a bit and then post what I've found. Thanks for your help. | ||
| Rhun |
From my experience fans just quit no warning or anything. Rear rocker oil leak took out the last one, most likely. The fan causes much questioning for me. In the beginning "you'd boil the oil" in the rear cylinder without it. Then the latest 08 and 09 map. It only (always) runs above 15 miles per hour. Never, for me anyway, when you shut it off. Complete opposite of the beginning fan explanation. My race bike doesn't have a fan and I obviously ride the crap out of it and the bike was used in an 8 hour endurance race. I am starting to think the whole fan 'thing' was just a bunch of hype. | ||
| Bluzzit34 |
Ok so I checked the fuses with my meter and they are good. ECMspy is not showing the code 36 for fan not working, although it is showing the code 21 for active muffler control for some reason. I am trying to get to the connector, but its such a huge pain in the butt to get to. Is there some trick to reaching it? I can touch it with one finger, thats about it!} | ||
| Sifo |
Active muffler wires run right past the fan. I think it's a separate harness though, I'm not sure if the fan wires are squeezed in there to or not. Could be pinched wires right in there, could be a coincidence. ECMspy has the ability to "test" the fan. It just turns it on for a few seconds on high and low. Try the fan test. It's on the Diagnostics page right above the test for the Active Muffler Control. Wouldn't hurt to run that diagnostic too. | ||
| Bluzzit34 |
I did run the diagnostic for the fan. Nothing happened, so I figured it was ok. But the fan did not turn on. Maybe I'll try it again though. | ||
| Sifo |
The fan should turn on with the diagnostic. I would guess either a broken wire or a bad fan. My bet is the fan went bad. If you could get the plug off you could run the diagnostic test and check the voltage at the plug. I haven't done it on mine yet, but I understand you need to remove the rear shock to get the fan out, or was it just undo one end and swing it out of the way? I'm sure some folks have done the fan around here. | ||
| Bluzzit34 |
Tried several more times with the diagnostic. Still didn't turn on. I pushed the blades and they do rotate. Should I get some kind of report back from ECMspy? It shows nothing about the test afterwards. I guess I'll try to get at the plug and try to test for voltage. Maybe the plug itself just got messed up somehow. | ||
| Sifo |
I think it just activates the circuit so that you can verify that the fan operates properly. Which in your case it doesn't. If you get voltage at the plug when doing the test it's the fan. | ||
| Beache |
My 2004 12r Did the same thing. I tested the fan by disconnecting the temp sensor and grounding it. Was real simple with the air box off. Once I grounded the wire the fan came right on telling me the sensor was bad. I had no other symptoms besides the fan. Hope this helps. I still haven't repaired it yet, I'n not in a rush hoping the XB12X RSS keeps it cool enough. | ||
| Bluzzit34 |
Hmm, I'll try that. I was working at getting the connector off for like 10 mins and its jammed in there. I think it might have something to do with that too now. So difficult to get at it! | ||
| Bluzzit34 |
Well i still couldn't get the connector off! It's jammed on there real good. But I did manage to test for voltage at the connector and it is getting 15 volts there. So, the fan must be dead. Great. I guess I'll be looking for a place to have it changed out, since I don't have my tools with me! Moving sucks... | ||
| Poppinsexz |
When testing did you ground through the harness or the Frame? If the frame, then you might check the ground wire before buying a fan. | ||
| Bluzzit34 |
I used ECMspy diagnostic to test the fan. During the test, I used my voltmeter to check the contacts. It went to 15 volts during the test, then back to zero once it was completed. Fan did not come on. | ||
| Beache |
The temp sensor has only one wire going to it. The sensor grounds itself out where it is screwed into the top of the cylinder. Oddest thing for me was this has been a persistent problem for 2 weeks, I test the fan to make sure it works and conclude it must be the sensor. i pull into the dealership to buy the 80$ sensor, shut the bike off, and the fan starts working.....what the heck. I take off run another errand, the fan isn't working again. So I bee line it back to the dealership, park the bike, shut it off and the fan is working again. | ||
| Sifo |
Temp sensor is pretty easy to check with ECMspy. Just hook it up and watch as the bike warms up to see that it provides reasonable values. Beache, you may have one of those intermittent gremlins that I really hate trying to find. Your diagnosis by grounding the sensor wire (good tip BTW) may have completely misled you. I'm not sure if temp sensors are known for intermittent problems or not. Good luck. | ||
| Bluzzit34 |
Ok one more quick question. Shouldn't I be getting a code 36 for the fan if its not working and needs a new one????? | ||
| Sifo |
I can't answer that for certain, but I would guess that the ECM is limited in the faults it can identify. When my fan went bad it would just hum on the low setting and had a hard time getting going on full. It had always been a noisy fan too, sounding like rattling bearings. The new one is much quieter. Mine was done under warranty so I don't have the experience of yanking it out. |
