dieseltech43 Posted March 5, 2011 Share Posted March 5, 2011 Hello, I have a 2004 CX615 , belt broke and ripped out pins on the fan wiring harness plug , Its a Behr fan clutch and looks like 5 or 6 wires ,I would like to just hard wire the engine harness to the fan harness but dont know what wires go together and I dont want to screw it up, I am guessing their are signal wires/reference wires /and 12v and ground anyone know what wires should connect or have a procedure to find out how to repair it ,, a wire diagram would be nice, Thanks in advance!! Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/ Share on other sites More sharing options...
rhasler Posted March 5, 2011 Share Posted March 5, 2011 Hello, I have a 2004 CX615 , belt broke and ripped out pins on the fan wiring harness plug , Its a Behr fan clutch and looks like 5 or 6 wires ,I would like to just hard wire the engine harness to the fan harness but dont know what wires go together and I dont want to screw it up, I am guessing their are signal wires/reference wires /and 12v and ground anyone know what wires should connect or have a procedure to find out how to repair it ,, a wire diagram would be nice, Thanks in advance!!I would suggest not hard wiriing it. It is sometimes necessary to disconnect the fan wiring for other repairs and hardwiring it will cause more trouble during subsequent repairs. I'll see if I can find the wiring instructions for the fan and post it later. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73980 Share on other sites More sharing options...
dieseltech43 Posted March 5, 2011 Author Share Posted March 5, 2011 I would suggest not hard wiriing it. It is sometimes necessary to disconnect the fan wiring for other repairs and hardwiring it will cause more trouble during subsequent repairs. I'll see if I can find the wiring instructions for the fan and post it later.Thanks for the info I figure if I can get a male and female pigtail for eng and fan I could always be able to disconnect , although I am trying to get it going asap , so if I have to make a jerry rig repair for now just to get me going I will,and then get the proper plugs and pins and do it the right way when I can. Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73981 Share on other sites More sharing options...
rhasler Posted March 5, 2011 Share Posted March 5, 2011 If it is hardwired you can't get the belt on and off, so if you go that route make sure to install the belt first, and don't chop the wires too short or you won't have enough left to repair it properly later on. If I remember correctly the fan hub wires are something like 18 or 20 gauge, so it's kind of hard to splice together. Here's a service bulletin on the Behr fan clutch, complete with wiring diagram. It doesn't tell you exactly which wire is which on the fan side, and I can't recall which color wire goes where, but this may help some anyway. Enjoy!SB 215-024 Behr Fan Drive Diagnostics (June 12, 2003).pdf Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73984 Share on other sites More sharing options...
dieseltech43 Posted March 5, 2011 Author Share Posted March 5, 2011 If it is hardwired you can't get the belt on and off, so if you go that route make sure to install the belt first, and don't chop the wires too short or you won't have enough left to repair it properly later on. If I remember correctly the fan hub wires are something like 18 or 20 gauge, so it's kind of hard to splice together. Here's a service bulletin on the Behr fan clutch, complete with wiring diagram. It doesn't tell you exactly which wire is which on the fan side, and I can't recall which color wire goes where, but this may help some anyway. Enjoy!I very much appreciate your response and link to the wiring schematics , now I just have to get the wiring for the fan harness , Do you know the model number of the fan so I could get in touch with builder and maybe get the schematic? Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73987 Share on other sites More sharing options...
rhasler Posted March 5, 2011 Share Posted March 5, 2011 I very much appreciate your response and link to the wiring schematics , now I just have to get the wiring for the fan harness , Do you know the model number of the fan so I could get in touch with builder and maybe get the schematic?Sorry, can't help with that. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73990 Share on other sites More sharing options...
dieseltech43 Posted March 5, 2011 Author Share Posted March 5, 2011 Sorry, can't help with that.Yea, thanks for the info , I just cant see buying a new fan hub when mine is perfectly fine other than the wires ripped out of the plug end. I will see if anyone can take a pic of their plug and wires maybe that will help out. Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73992 Share on other sites More sharing options...
Gravy Posted March 5, 2011 Share Posted March 5, 2011 If you do it this way... its only a matter of time before you will start being plagued with a 4-2 code Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-73999 Share on other sites More sharing options...
Mackpro Posted March 5, 2011 Share Posted March 5, 2011 Heres some pics, pulled a new one off the shelf, Let me know if you need the other side (engine harness wire #'s). Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-74014 Share on other sites More sharing options...
dieseltech43 Posted March 6, 2011 Author Share Posted March 6, 2011 Heres some pics, pulled a new one off the shelf, Let me know if you need the other side (engine harness wire #'s).That is the best pic , It shows me everything I need to get the job done right. You are very cool, I appreciate it.. Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-74064 Share on other sites More sharing options...
Bink Posted January 20, 2020 Share Posted January 20, 2020 I need the wiring on the other side plug. I would really appreciate your help. Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-440932 Share on other sites More sharing options...
Bink Posted January 20, 2020 Share Posted January 20, 2020 My plug from the ECU got caught in the fan. I need to know which wire connects to which hole in the new connector from the ECU. Thanks for any help . Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-440938 Share on other sites More sharing options...
Ben Davie Posted August 31, 2020 Share Posted August 31, 2020 Hello, I have the same issue but the plug has been pulled off both sides, as the wiring colour changes can anyone please help regarding what colour goes to what so we can fit a new plug and connect wiring correctly. help much appreciated as the dealer won’t help and we are in a remote station thank you Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-459846 Share on other sites More sharing options...
Derrickw Posted January 29, 2022 Share Posted January 29, 2022 I have this problem but I'm just gonna buy a new harness so but my question is when I replace belt can I drive my truck till I get the new harness ? Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-488134 Share on other sites More sharing options...
Joey Mack Posted January 29, 2022 Share Posted January 29, 2022 if you live in a cold climate you may be ok to drive for bit until the part gets here, but you have to get it fixed. are you not able to solder the harness back together, or solder in plugs so you can unplug it when other repairs need to be done? and you should look real close at the tensioner pulleys, to be sure they didnt cause the belt to walk off the pulley, and also check all other pulleys for movement that could cause the belt to come off. If the belt snapped, that tells me that the hood doesnt get opened much for inspection, you may want to start there first, and make sure pre-trip inspections are getting done.. the fan clutch you are about to buy is very expensive. good luck, Jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-488137 Share on other sites More sharing options...
Seth Posted February 23, 2022 Share Posted February 23, 2022 On 3/5/2011 at 9:26 AM, Mackpro said: Heres some pics, pulled a new one off the shelf, Let me know if you need the other side (engine harness wire #'s). I need the other end. Let me know if you can help Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-490106 Share on other sites More sharing options...
Joey Mack Posted February 23, 2022 Share Posted February 23, 2022 those duetch connectors are available. any chance NAPA can get the parts? you may have to buy each part seperatley. the plug, rubber seal ring, terminals, terminal lock, and rubber plugs for open sockets, and the rubber seals that go on the wires before you crimp or solder the terminals to the wires.. jojo Quote Link to comment https://www.bigmacktrucks.com/topic/18229-serp-belt-broke-and-ripped-out-fan-wiring/#findComment-490108 Share on other sites More sharing options...
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