Hi all:
Have a question about my 2001 DS650 regarding the radiator cooling fan. Before folks go telling me to remove my fan and buy a new one, let me say that MY FAN has been tested against the ATV battery and works quiet and powerful! I just wish I would run by heat trigger. So here we go...
I am yet to see my fan actually triggered and blowing heat away from my radiator by way of the Coolant sending unit. I've done all tests that I have been told to do.........I THINK! Anyway, I was told to do a pig tail test after removing the two wires from my sending unit and when turning the key on, the fan should run.... NOT! I have also replaced my fuse with a new one just to cover my butt. I do not have a relay on my 2001 base model and I suspected that my system is straight wired with my battery set up with my ignition switch just like if I was to unplug my fan and run a ground wire from one of the fan leads to one pin on my heat sending unit and the other fan lead, positive run to the negative side of my battery and then from the positive side to the other sending unit plug using it as a type of automatic toggle switch. I've been also told to toggle switch my fan so it can run on demand or triggered with the key.
OK, I don't want to do any of that and i just want my system to run as it did from the factory. Now, with all my info I have given, what else could go wrong?? Is that other item near the sending unit only to the top with the one wire hooked to it important and is that part of my red warning light trigger on my dash? I've tried my Ohm tester on continuity by hooking up a jumper at the sending unit end and testing from the unplugged fan end and get nothing and vise versa. I will include a photo of the two items in question and I just don't know what to do from here and until I can run the fan by jumper with the key switch on, replacing the two sending units don't mean anything even if the were bad. My testing problem is in between somewhere else. Can someone explain the route starting from the fan and what wires route to where from the key switch to the battery and to the sending unit.
I have been all over the internet and have not found a clear picture or a fix, nor even how to test for faults. I hope I covered everything. Thanks. Scott
Have a question about my 2001 DS650 regarding the radiator cooling fan. Before folks go telling me to remove my fan and buy a new one, let me say that MY FAN has been tested against the ATV battery and works quiet and powerful! I just wish I would run by heat trigger. So here we go...
I am yet to see my fan actually triggered and blowing heat away from my radiator by way of the Coolant sending unit. I've done all tests that I have been told to do.........I THINK! Anyway, I was told to do a pig tail test after removing the two wires from my sending unit and when turning the key on, the fan should run.... NOT! I have also replaced my fuse with a new one just to cover my butt. I do not have a relay on my 2001 base model and I suspected that my system is straight wired with my battery set up with my ignition switch just like if I was to unplug my fan and run a ground wire from one of the fan leads to one pin on my heat sending unit and the other fan lead, positive run to the negative side of my battery and then from the positive side to the other sending unit plug using it as a type of automatic toggle switch. I've been also told to toggle switch my fan so it can run on demand or triggered with the key.
OK, I don't want to do any of that and i just want my system to run as it did from the factory. Now, with all my info I have given, what else could go wrong?? Is that other item near the sending unit only to the top with the one wire hooked to it important and is that part of my red warning light trigger on my dash? I've tried my Ohm tester on continuity by hooking up a jumper at the sending unit end and testing from the unplugged fan end and get nothing and vise versa. I will include a photo of the two items in question and I just don't know what to do from here and until I can run the fan by jumper with the key switch on, replacing the two sending units don't mean anything even if the were bad. My testing problem is in between somewhere else. Can someone explain the route starting from the fan and what wires route to where from the key switch to the battery and to the sending unit.
I have been all over the internet and have not found a clear picture or a fix, nor even how to test for faults. I hope I covered everything. Thanks. Scott

