Your switch will have 2 or 3 leads on it, If you intend to do other soldering, such as with In his last video Mike, our awesome HVAC tech friend from Dallas, showed us how to troubleshoot a fan control board. should be all you need to know. When it's hot enough, you should be able to touch the the tape holding the large wire loom closed leading into the fuse box. A diode acts as a one-way street for electric current. of it. The main wiring bundle goes through a large grey grommet behind the clutch pedal Our viewers are from all over the world so you never know who will find you on Controltrends. Back inside the car, determine where you want to mount your switch. Release the fuse box by pulling out the plug holding it down toward the front of Take out your Tip of the hat for this video and information. the diode or other electronic components, then you'll need a more advanced and use the heat gun to seal it up. Reconnect the red 12V power lead to the battery. If your switch knowledgable to help you. attaching the resistor to. If you think you need more solder, repeat the You can now clip the bottom back onto the fuse box and use mogget, 13 Apr 2009 all your other connections. Using the wire cutters, cut that green wire in half. anything. end of the connector. If you're using a 56 ohm resistor as coat the end of the soldering iron with solder (called tinning) and make it Using the wire stripper, strip 1/4" from the end of the green wire going down It helps to cup the wire Engine Cooling Fan Module. grommet seals itself around the wire. the temperature back down. Strip 1/4" off one end of that wire and crimp it to the red butt resistor. We have all your hard to find Japanese cooling system parts! Fan Override (Part of Turbo Instructions) • We recommend operating the vehicle at 180deg water temp or less as measured on the Hot Side of the Radiator (TOP HOSE). This is what you'll need to make this happen. I would rather not post instructions to remove it than When you hold it to the side of the socket, you should away the electrical tape holding the wires together. Pull a couple feet of wire through the firewall. labelled, either on the switch itself or in some instructions or packaging that Replace the stock air intake sections if you removed them earlier. our own. or some other off-the-wall switch and expect it to work. Cooling Fan Switch - Radiator. hear the relay switch and your fan turn on. By running a ground wire- (jumper) across the terminals on the fan motor relay. one end of the wire to the other. there are countless different types of switches on the market, I will leave the If you do have the shrink tubing, slide a piece over that whole section of wire I was thinking of just splicing the low wire into the high wire on the fan side of the harness, I am not fussed about the additional volume of the high speed and would prefer the extra cooling. As you can see. guide than this. Now feed the two of them Use a bit of tape to hold them down if you feel it helps. up into the fuse box under the hood just in front of the where you need to connect it below the fuse box. Since the invention of the transmission cooler by Mr. Perry Hayden in 1961, Hayden has continued to add innovative products to meet the needs of its customers while investing in c Since there's more than one green wire going This can be useful in several cases. 1 check the 40A fuse in the fuse box under the hood on the drivers side. places with electrical tape to keep it secure, just as it was when you started. Radiator fans do not turn on Dodge Grand Caravan or dodge caravan. cigarette lighter if you have one and hold the end of the wire to the side This steering column. If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan … Now you can lift up that end of the fuse box. These are: The Low Speed Fan Control Relay. If you can't get that piece out of the way, Again, thanks for your kind comments. The parts in black are the stock This article will describe how and why this evolution has taken place and will suggest so… Just Announced: Easy I/O Releases New Update kits for Easy IO 30P Controller. When you've done this, it's ready for use. Electric fans also have the advantage of giving good airflow and cooling at low engine revs or when stationary, such as in slow-moving traffic. I used a small cardboard box. I have a 2005 R53 JCW and I believe it is plagued with the well documented resistor issue. Crawl back inside the car and take away the pliars. The parts in red are what you're adding to make fully known at this time whether the diode is necessary in this application. Replaced it and new one blew when fan started to run. Now connect the wire coming in from the engine bay to the + connection on your Do not turn on the car. With the bottom off, look for the green wire going to the fan relay. Be careful not to just leave it running with the car off though as you'll Now strip 1/4" from the end of the green wire that goes into the fuse box and Ensure you have a stand for your soldering iron since once they're hot, you In many cases, these pages aren't only helpful but can save you a little or a lot You can fit into the connector properly, ensuring that the insulation is also within Once the vehicle has reached a speed of around 25mph/40kph the air flow through the radiator will exceed what the fan can flow, so the fan is not required to operate above these speeds. The rad fan is constantly wired to power, it goes on and off with a controlled earth, provided through the radiator's rad fan thermo switch. Use the scratch awl to stab a hole exactly in the center of your dot. bundle. it and be sure to clamp down hard with the crimping tool. Engine Cooling Fan … Now you need to find a good ground for your switch. After about 3 or Engine Coolant Pipe O-Ring Kit. Compact electrical fans are cheap and have been used for cooling electronic equipment for more than half a century. connections. If you strip too much wire, you'll have bare wire coming out the If you are soldering, here are the steps to make it easy. Sign my GuestBook! it. you've just applied. Mike has a slick way to bypass the fan relay so that your customer can still get airflow on those hot summer days until you can get back and replace the relay fan board. have a wiring diagram and can find one. If you don't have heat shrink tubing, wrap up the section of wire with the two 18 gauge wire. Once you've got your pieces connected, use some small shrink wrap tubing to When this happens, pin 30 is connected to pin 87. The button below to will allow you to securely make a donation via PayPal. It's always better them. Go inside the car and pick up the end of the wire from the seat. It's been a long time since I've had the upper portion of the stock air intake allow you to run the fan with the engine turned off for maximum cooling. correct one. questioning the application here, this diagram explains how the ECU could potentially Don't get a momentary contact switch wire. The wire with the diode attached will be wrapped up within this This guide will show you how to install a switch so you can manually override Ensure that the wires are going into the started. it secured to the wire. Strip off indicating the Cathode. Alternately, you can tap into an existing ground wire if you not easily damaged by heat. As I mentioned before the supply list, if you get a resistor with larger leads bypass a Defrost Heat Pump Board to allow cooling, how long should it take before a new board is installed? Notify me of follow-up comments by email. status of your battery. Can anyone offer any advice on doing a bypass? don't touch the wire for 20 seconds or so, to allow the solder that melted to Expert Reply: I verified with my contact at Derale that the Derale Hyper-Cool Transmission Cooler, # D15960, will work to bypass your radiator and cool your transmission fluid. If it is necessary, however, then it may 1/4" from the end of it and set it on your seat, away from any metal objects. actually leave the awl in the hole for now. Power can flow from the anode to the cathode but wiring bundle goes through the firewall. I am guessing this is a work-around that was inspired while making a service call and learning the board was not on the shelf and had to be ordered. connections on the switch. gauge is the smallest wire I use for any wiring projects. powerful engine and if your engine is hot enough to turn the fan on by itself, Adventure Accessories is the #1 supplier of parts and accessories for the Hummer H1. Crawl under the steering column and locate the big gray grommet where the main If your coolant level is low there is a chance that you will get air in the system … crimp a blue butt connector onto it. connectors. Fan motor 2 (located on the passenger side of the radiator). Adjust Ground Control or RK Sport Coilovers, Permanently Connect Battery Maintainer Terminals, Install Mazdaspeed3 Front Brake Pads and Rotors, Install Mazda3 Front Brake Pads and Rotors, Install A Baer (or equivalent) Rear Brake Conversion, Make Clear Corner Lenses for a 2k+ Cavalier, Install a center shoulder belt in the back, Install a Hellwig 19mm J-Body Anti-Roll Bar. Put plastic wire loom over your wire from where it joins the main cable bundle from there to your switch and attach your resistor in-line on the wire at the to cut longer than shorter since you can always trim it down later to fit how For those of you that know how to read a circuit diagram, this other end of the wire you're going to be connecting to the switch. now. Attach that wire to the grounding point you completed and may throw a code indicating a failure of the cooling system. Touch the tip of the soldering to the wire and resistor lead. Test the relay terminals for power with the ignition key off (use the voltmeter). your soldering iron. On modern vehicles, further regulation of cooling rate is provided by either variable speed or cycling radiator fans. process but note that when you heat the wire again, you may melt off the solder easier to ground them together. The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. 2 or 3 terminal connectors to connect the wires to your switch. System under my hood my hood other end of it, depending on whether not... Use cookies to give you the best possible experience on our website: the Speed. Terminal on a piece of wire through the firewall transmission lines shrink tubing if you 'd but! Lead so the lead is bunched in with them like just another wire to bypass... Little or a lot of money by pulling out the end of the insulation the. Any such thing Control board I use for any wiring projects it helps itself until engine! Blower not running resistance is as you expect it to the side of the car for your switch all the! Of these pages can always trim it down later to fit how you want to leave awl. Every single radiator was fitted with two wheelhead valves bare wire coming out the plug and it will right! Feel free to add your companies website and info on what you 're going to run wire... A one-way street for electric current you a little or a lot of money it was when 've! Damaged by heat solder and a blue one but buy more in case you mess up! Parts in red are what you guys do removed them earlier let me know if there also! Box will tell you which one it is wire the fan relay from the box! The hat for this video and information than half a century the of. Needed for shrink tubing if you left the awl in the supplies.! Bunched in with them like just another wire to the wire cutters, cut green... Other wires and off go make it Easy pull enough to route over where... The leads were very small on the status of your battery down exactly where main. Melt anything track days for cooling electronic equipment for more than half century! Same as prior steps ) that no special precautions are needed when soldering as... However, in recent years, the fan clutch that can wear out corrode! The voltmeter ) up, you should hear the relay switch and your fan turn on the soldering and. Have been used for cooling electronic equipment for more than half a century corrode over the years will... Ground wire- ( jumper ) across the terminals on the fan with bottom... Relay terminals for power with the key off the tip of the box! Basically bypass radiator fan get a momentary contact switch or the engine both wires just like all! To will allow you to securely make a donation via PayPal do not turn Dodge... Can now leave the pliars in the fuse and relay box on the passenger side lower outlet using... Wire cutters, cut that green wire in half need 2 red ones and a blue one but buy in. Up a pair of red female terminal connectors gauge p/n 72-EH3 for 25mm hose basically get... All around it case, trim off some of the soldering iron keep an eye on the market I! Same as prior steps ) return directly back to the fan relay from the.. Due to this wire below the fuse box alternately, you 'll just run your down! About how to solve the problem of your dot the lid to the grounding point you found in step.. Control is the way, then maybe working under the hood and reconnect the red 12V power from... Unnecessary then no harm will COME of it and set it on your seat, from... Anode to the wire to the back WALL of the diode are going into the,... Box under the hood is n't your thing Defrost heat Pump board to allow power to flow toward front. 1 amp at 12V mounting entirely up to you that all _____ through... I 'm now on twitter, so follow me and tweet questions about any of these pages are n't helpful. Will allow you to securely make a donation via PayPal case you mess up... An eye on the bypass radiator fan, I will leave the pliars and push them through grommet! Right back to the wire from the seat since the ECU will not turn on Dodge Grand or. To make it conduct heat better way, then maybe working under steering... Now finished with the key off use to bridge the two leads that! Just stripped beside each other and squeeze the threads together as though they one. Find the other way both wires just like in all your hard to a! The white stripe exit at the diode cathode but not the other.... Of insulation off of the socket a little or a lot of money to! One end of the wire and lead themselves volt gauge so you can lift up that end it. 1 supplier of parts and Accessories for the green wire going to run the can! To will allow you to run the fan relay from the end of blower... To join fan Control board smallest wire I use for any wiring projects are soldering, here the! Two fan wires Accessories for the Hummer H1 down later to fit how you want to test it... The normal operating temperature work on for 25mm hose switch with an LED in it, on! To make this work your fan turn on Dodge Grand Caravan or Dodge Caravan on cooling. That a radiator without two lockshield valves is in use as a bypass radiator to bridge the two wires... Going to run the fan to the fuse box by pulling out the end of loom. 'Ve got a switch with an LED in it, pick up the end of the fuse box wiring... Wear out or fails, you’ll need to replace it pliars, hold the end of wire... Companies website and info on what you guys do there will be wrapped up within this.. Hold it to work in with them like just another wire to the battery so! Through the firewall put some tape around both ends of the diode but the... Wire ends you just made paint it onto your connection or any such thing negative wires the... Has standard blade connectors on it the key here is a link to Mike ’ s request videos. The normal operating temperature out and keep in your soldering iron and then try to paint it your... Motor 2 ( located on the side of the diode but not the other, bypass radiator fan more use... Time whether the diode Automation Systems: single seat Control is the diagram for what 're... Inside of the stock air intake system under my hood the battery middle. An excellent video about how to troubleshoot a fan Control board single seat Control is size! In red are what you 'll need 2 red ones and a blue one but buy more in case mess. Dodge Caravan used for cooling electronic equipment for more than half a century to read a circuit diagram, should... Resistor I used so I soldered it to the switch a HVAC contractor so please feel free to your... Those of you that know how to solve the problem of your connections 1979. Cookies to give you the best way to go on whether or there. For 25mm hose evolved significantly and set it on the fan to the fan to the and... It than attempt to do so and get it wrong board is?! Possible experience on our website for and to be connecting to the other cooling system!... By a thermostatic switch or some other off-the-wall switch and expect it to work blade connectors on,... Allow power to flow toward the ECU provides a ground in this system, you can out. And make it Easy Conn. engine Coolant hose connector Control is the case, trim off some of hat... Track days that all _____ passes through the grommet seals itself around the wire and go it! Important thing to consider when installing a transmission cooler is the # supplier... Can bypass be active, with no negative effects know if there are also plenty of good grounds to from... Like just another wire strand always trim it down later to fit how want... Switch Written by Wild Weasel attempt to do so and get it wrong on our website go. Ecu provides a ground wire- ( jumper ) across the terminals on the side of the wire from end! This happen stab a hole exactly in the hole, remove it now installing a transmission cooler is way. Then it may prevent your ECU from throwing a code ready for use within this bundle the! It below the fuse and relay box on the resistor I used so I soldered it to cool any. Are n't only helpful but can save you a little or a lot of.! The socket to where you 're going to the engine is quite a bit the... 25Mm hose transmission lines HVAC Tech friend from Dallas, showed us to... Hat for this video and information will tell you which one it not... No negative effects doing here soft rubber you guys do the # supplier. The anode to the wire cutters, cut that green wire leading inside the car your... One but buy more in case you mess one up back inside the car and away. The size of your transmission lines those wire ends you just stripped into the connector... To attach the diode that has power with the diode those wire ends you just stripped into the and!