Thanks Shawn. Richard McCuistian, ASE Certified Master Automobile Technician, Signs of a Bad Fuel Pump Relay, Plus Testing Procedure, 2023 National Car Care Month: How Proper Car Care Helps Protect the Environment, Toyota Tune-Up Costs and Maintenance: What You Need to Know, Honda Tune-Up Costs and Maintenance: What You Need to Know, Aries: Claim a $75 Rebate on select Aries ActionTrac Kit. You said cooling fan is not coming on when a/c is turned on? I went to the junk yard and picked up an entire fan and motor assembly for $200.00 usd. DME and radiator fan is feed from the 200 Amp source circuit in the trunk which I think terminates in the e-box. By using a lower voltage signal to control the relay, there is less stress on the rest of the wiring and charging system. The activated relay completes a circuit, allowing an electric current to flow through it and reach the cooling fans. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. Most cooling fans use electric motors, that have a moderate to high current draw. (Merged), Wednesday, January 13th, 2021 AT 10:56 AM The part number is 56055667AB $25 for the single relay and 56055666AB $35 for the double relays from amazon. Higher resistance levels warn that the coil has started to fail while lower readings mean the relay has broken down. Some relays will have the circuit diagram printed on the casing but even with that, signal voltage and load voltage all have to match. But That's Not What Caused It To Overheat. It's located behind the headlamp on the passenger side. 5.7 Sport. Free shipping for many products! I checked the fuses and all ok. Cchanged the relay connected to the front on the car under the hood by the fan still doesnt work. A caveat cooling fans can work intermittently relays usually either work or they dont. (new Image()).src = 'https://capi.connatix.com/tr/si?token=2ba02a33-c319-4410-bba7-f8321a13bed3&cid=877050e7-52c9-4c33-a20b-d8301a08f96d'; cnxps.cmd.push(function () { cnxps({ playerId: "2ba02a33-c319-4410-bba7-f8321a13bed3" }).render("00499ba9282e4d1b985fa8af14d29c2b"); }); For more vehicle maintenance and repair tips, visit our Auto Repair section. Conversely, the cooling fans may keep running even when the engine is offline. Step 9: Verify operation of replacement cooling fan relay. Normalcy is the key, whether youre listening to the fans, watching your gauges, or anything else. YourMechanics technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Step 2: Remove the fuse/relay box cover. Powertrain Control Module (PCM) Transmission Relay: J19: 60 Amp Yellow Radiator Fan: J20: 30 Amp Pink Front Wiper: J21: 20 Amp Blue Front Washer/Rear Washer - if equipped: J22: 25 Amp White Sunroof Module - if equipped: M1: 15 Amp Blue: Stop Light Switch Feed Center High Mounted Stop Light (CHMSL) M2 20 Amp Yellow . bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. Fan keeps running, temp on low. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance. Step 2: Remove the fuse/relay box cover. Yes but the ac doesnt work either. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. How Often Does My Car Need a Radiator Flush? RADIATOR COOLING FAN RELAY LOCATION AND REPLACEMENT FORD FOCUS MK3 2012 2013 2014 2015 2016 2017 2018In this video we will show you how to replace the relay for the radiator fan on Ford Focus MK3. Visually inspect the electric cooling fan assembly for the cooling fan relay. Watch your gauge! It sounds like you have a leak accompanied by overheating. The left cooling fan obtains voltage through the low speed fan relay and ground through the Series/Parallel relay. You can listen to the relay to see if it clicks when it is energized, but that doesnt mean the relay is good it can click and still not deliver power to the fan. The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator. But again, a bad cooling fan relay isnt the only culprit for excessively high engine temperatures or A/C Condenser overheating. The small hose that comes from the bottom of the thermostat housing and has a small bend then goes straight down into the top of the water pump is called the water pump bypass hose. Any sugestions? Possibly could go bad at same time especially with water being sprayed all over them, I have always scringed when someone says they powewashed their engine. Damage caused by changing between circuits with different speeds and electrical load. Arrived on time, very professional and knowledgeable. Ernesto repaired my car in a timely fashion. First test the fuse for the radiator fan. Engine running hot. Can you help me and perhaps include a diagram so I will know it is and how the thing works. Sorry for any confusion. For a better experience, please enable JavaScript in your browser before proceeding. Such as, use safety glasses, jack stands, no loose clothing, etc. I may hav knocked something off. Then apply a generous amount of thermal grease to the back of the new fan relay (see photo, right). Been told they were? Thats a prescription for a repeat failure. Not every relay is designed the same from pin out orientation to internal function. Thanks for diagram. And no relay listed for the cooling fan Engine Compartment Fuse Block Relays Usage K1 A/C clutch K2 Starter K3 - K4 Wipers speed K5 Wipers control K6 Cargo lamp/Bed lighting (if equipped) K7 Powertrain K8 - K9 - K10 - K11 Center high-mounted stoplamp K12 Vacuum pump K13 Vacuum pump K14 Trailer parking lamps K15 Run/Crank K16 - K17 . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. They dont click on like yesterday. This all happened after I spraywashed the engine. That's a known failure item when the fans are inoperative. They will be able to look over your vehicle and replace your cooling fan relay if necessary. When the engine is cold, the thermostat will remain closed and keep coolant circulating through the engine to be warmed up faster. Produced in 3 generations. He really went above and beyond to get my car fixed and did a great job. Unplug the electrical connectors to the radiator fans. OPERATION An electric radiator cooling fan is used with certain models/engines. Disconnect connector and remove cooling fan relay. Chevrolet Tahoe (2015 - 2016) - fuse box diagram Year of production: 2015, 2016 Underhood Fuse Block The underhood fuse block is located in the engine compartment, on the driver's side of the vehicle. apparently, models as mine are prone to WP failure. Step 4: Install replacement cooling fan relay. A forum community dedicated to BMW owners and enthusiasts. Cooling fan 1 relay: 30B Starter relay: 30C Cooling fan main relay: 30D Cooling fan 2 relay: 31A Reverse lamp relay: 31B Not used: 31C Trailer tow left turn relay: 31D Trailer tow right turn relay: 31E Trailer tow park relay: 31F Liftgate latch relay: 32 Not used: 33 PCM diode: 34 Start diode: 35: . Where are the relays for the ac? The new relay setup is a dual relay and I found the one that I needed to replace was on the left of the two closest to the cab. RADIATOR FAN RELAY LOCATION REPLACEMENT DODGE JOURNEY, FIAT FREEMONT. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. Replacing your cooling fan relay is a vital repair for keeping your car running properly. Ensure the relay is of the same basic dimensions. Step 5: Replacing cooling fan relay. Ants in the relays (more common than youd expect). If you don't see 12 volts at the connectors, the fan isn't getting power from the relay. A faulty cooling fan relay can also negatively affect air conditioning (A/C) performance.The reason being, on most vehicles, is that the cooling fan doubles as a condenser fan.When the A/C is turned on, the fan moves air across the A/C condenser, thereby removing heat from the refrigerant, which changes from a vapor to a liquid state as it gives off heat it . JavaScript is disabled. I went through two fan assemblies from the junk yard before I found one that worked. X feed Ignition switch module LH a' 27 Thanks to its use of both armatures, a dual relay can conduct an electric current in both open and closed positions. She Says The Car Will Start Right Back Up Go My Car Was Overheating So My Father Replaced The Intake Manifold Gasket. When it malfunctions or breaks down, it affects the fan. Failure of the computer, temperature switch, or relay control module that turns the relay on or off. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool. Step 6: Match replacement relay to the original. Content on bimmerfest.com is generated by its users. Use a multimeter to check for power at the unplugged fan connectors. 2007 550i Sapphire Black, Prod. Posted on Sep 18, 2009 These secondary terminals that carry the load of whatever the relay is switching. When I turn the ac on the ac and cooling fan dont kick on like they did b4. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. Jeep Grand Cherokee - Cooling Fan Relay - Surprise, Arizona. The cooling fan relay is the relay that controls the engines cooling fans. Cooling fan relays can stop working for any number of reasons. Where is the cooling fan relay (or switch) located. JavaScript is disabled. The electric cooling fan (s) are controlled by the Body Control Module (BCM) which enables the fans through the PCM. Relay R3 - Additional heater relay. Your coupon is on its way to your inbox. Made with in Silicon Valley. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly. Hey there, thanks for writing in about your 2004 Buick Rendezvous. The ECM relay on this vehicle is called an auto shutdown relay (https://www.yourmechanic.com/services/automatic-shutdown-relay-replacement) and is located in the engine compartment integrated power module control box. If your vehicle has two fans and one of the two fans isnt working, the problem could be the bad fan or a faulty relay. If you buy one from the junk yard and the car continues with the same issue chances are that the one you got has the same problem as your old one. As part of that research, I found tons of replacement fans - both OE/OEM and true aftermarket for 3.6 JK's up to roughly 2014, but it seemed after that, all the research showed newer JK's (approx 14-15 and . For a better experience, please enable JavaScript in your browser before proceeding. Any attempt to repair automotive parts and/or systems carries risk of personal injury. A broken fan relay means the radiator cannot cool down. Repairs covered by 12-month/12,000-mile warranty. My zr2 does it all the time. Step 8: Verify the new cooling fan relay is properly seated. And a video example, you can clearly see how to replace the cigarette lighter fuse. Common signs include the engine running hot and cooling fans either not functioning or running all the time. A standard relay has a primary circuit that magnetizes a coil with a steel core this turns the relay on, with the magnetism pulling the secondary contacts together to close a circuit. If you arent getting power at the relay, youve got a more serious wiring or computer problem, and thats a job for a pro. Is it overheating faster and without warning? Probly have to have it looked at by a pro. For a more complete discussion of the cooling system, read our article here. Note: Some manufacturers will also refer to the electronic control module (ECM) as a powertrain control module (PCM). The statements expressed above are only for informational purposes and should be independently verified. Thanks so much for your help. Vehicle Reliability of Popular Car Models. I mounted 2 Hayden 10 inch fans up front with a 3647 controller ($150 in parts) - I left the OEM on the rear. Testing low and high speed cooling fan relays. Pay specific attention to the physical dimensions of the relay, and more importantly, to the number and orientation of the pins on the replacement. Guides & features that can help you extend the service life of your car delivered straight to your inbox. I noticed the radiator fans not working. I've never had a problem spraywashing an engine. Read 1st question again please. 2023 Their main difference involves the winding armature that they use to complete an electrical circuit. This only works if the fan is driven by a single relay as stated earlier, many fan systems have a module, or they may have 2 or 3 relays working together. Thats usually the fan itself. Both are located in the under hood fuse box. No guarantee or warranty is implied. The PCM enables the ground path for the three cooling fan relays. These tubes (https://www.yourmechanic.com/article/how-long-does-a-radiator-hose-last) Starter relays are faulty if there are problems starting the engine, the starter stays on after cranking, or a clicking noise comes from the starter. Step 2: Disconnect electrical connector. RADIATOR FAN RELAYPCM OUTPUT DESCRIPTION The electric radiator cooling fan relay is located in the Power Distribution Center (PDC). I always assumed they went to the PWM fan motors when they changed from 3.8 to 3.6, but that's just my guess. Select a Vehicle 1 - 24 of 535 results for Radiator Fan Relay Compare All Pick Up in Store Ship to Home Sort By: Compare MasterPro Ignition 20 Amp 4 Terminal Multi-Purpose Relay - 2DR1038 Part #: Believe the JK (3.6L) fan design was changed in 2014-ish or 2015-ish. Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay. The relay (s) are used to control the high current flow to power the cooling fan motors. Thanks Fasttrax.after reading some other threads, it looks as though it's a water pump problem. The cooling fan relay essentially functions as, the on/off switch for the engine's cooling fans. That's Terminal 30G for most items in the cabin. My problem is trying to locate it. Fuse A - No information is available. Relay R6 - Terminal 50 voltage supply . What Happens When Rack and Pinion Goes Out? The P0052 (https://www.yourmechanic.com/article/p0052-obd-ii-trouble-code-ho2s-heater-control-circuit-high-bank-2-sensor-1-by-spencer-clayton) code you are getting is for the passenger side O2 Get a fair & transparent quote instantly before booking. Energizing the relay coil opens the armature and completes the circuit. Position the relay above the recess where the original was removed from and gently press it into place. The most popular service booked by readers of this article is Cooling Fan Relay Replacement. Show more Show more Shop the 2CarPros. the car overheated so I pulled over. Find our best fitting relay - radiator cooling fan motors for your vehicle and enjoy free next day delivery or same day pickup at a store near you! Obviously, if the fans run all the time, they will drain the battery. Was very professional, punctual and is very knowledgeable. the fan control module should be right where your lookin under the battery tray, there are two 10mm bolts holdin it from the top. You can also measure the relay coils resistance. Rather than uncommonly high engine temps, the driver may notice that the cooling fans have stopped running. 672. Cooling fan relays fail when the radiator cooling fan no longer receives an electrical signal. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. IIRC WDS. Any way to tell which is ac and coolant fan? From what you have described though, it is unclear if the overheating is being caused by the coolant leak (low coolant can cause overheating) or the two are just simply Get a fair & transparent quote instantly before booking.