Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. Your car may have one or two Maxi-Fuses for fan power as well as 3 relays. If you do have low coolant, don’t fill it up until the engine has cooled off. To the original poster, my 06 had a few cooling issues which directed me to look at the fan operation. Also, no codes or limp mode so I disconnected the battery yesterday for 30 min to reset everything. This is also stated (vaguely) in the factory service manual. Reached my location but found that the radiator fans were not working. Also a radiator fan relay switch that has a bad connection or bad switch. Engine runs correct temp while air flows through radiator at highway speed or when AC is turned on (thus fan is on). If your fans do not engage and the dashboard temp gauge reads normal, then the thermostat sensor is bad. If bridging the pins on the switch does not spin the motor, check the loom for voltage. Carefully drill out the two retaining rivets. Connect wire connectors into back of headlamp module. Your cooling fan operates through a series of circuits. Check the fuses and relays in the underhood fuse box. Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. Unplug the radiator fan connector. Get a flash light and look down the in the area of the brake booster you coukd see the the top of the transmission see if it is wet. How to check and repair. I have a 1998 Dodge caravan and a p1698 troubleshooting code. If they are good you may have a problem with the box. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem. Refer to Lighting and Horns. EASY but not likely. ^^^ Good to know. Informal Lounge, Introductions, General Discussion, FWD DeVille 1985 to 2005. I just got done replacing my radiator and have every thing back to gether and radiator fan is not turning on. Discussion Starter • #1 • Oct 26, 2019. This can be useful in several cases. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan on. Models: If you don’t … To correct this condition, the radiator fan relay must be replaced and the Powertrain Control Module (PCM) must be reprogrammed (flashed). I noticed my cooling fan stopped working and would only come on when I had the AC on. Was it just from power to the fan and than to a toggle switch? The relays are arranged in a Series/Parallel configuration that allows the engine control module (ECM) to operate both fans together at low or high speeds. To: XXXXX XXXXX and Chrysler-Plymouth Dealers, Subject: Surface Pro 4 Fan Wont Turn On. 1998 Model Year Dodge Caravan and Grand Caravan; Plymouth Voyager and Grand Voyager; and Chrysler Town & Country (NS) Vehicles Equipped With a 2.4L, 3.3L or 3.8L Engine (“B”, “G”,”R” or “L” in the 8th VIN Position) Built Through: November 26, 1997 (MDH 112623) at the St. Louis South Assembly Plant (“B” in the 11th VIN Position), December 1, 1997 (MDH 120109) at the Windsor Assembly Plant (“R” in the 11th VIN Position). Broken Fuse. 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. Check it with a scanner for shore it will give a code because it over heat it but it may give you a code for what's wrong with it. The radiator fan relay is located below the left front headlamp module. There is a fan motor relay, which there was a recall for on some. If the fan does not turn on, you will need to replace it.If the radiator fan is in working condition, move on to the next step. How to fix a radiator control module of a dodge Gland Caravan 2000 – JustAnswer. As soon as the pins are bridged, the fan should start to spin. JavaScript is disabled. Check the coolant temperature sensor at the top of the engine Jjjja . 2000 323i manual, with 126k miles. 1 check the 40A fuse in the fuse box under the hood on the drivers side. Toyota Camry Radiator Fan Not Working Causes. The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. Nothing obvious. This may cause the engine to overheat. If the radiator can keep up with the demand for cooling, then the fan doesn't come on. today we took out fuzes,and swapped them,and added some water to the overflow,and it ran cool overall,well cool by can-am standards lol,and i could now hear the fan run when i stopped and let it idle,but unlike my 09 550 grizzly,when i shut the engine off,and than turn key to on,but dont start engine,the fan does not … Open hood, disconnect and isolate the battery negative cable. Install nuts to hold headlamp module to radiator closure panel. Install screw to hold top of module to closure panel. Thanks for the correction. Discussion Starter • #1 • Jan 1, 2014. Check engine light came on as well. Place headlamp module in position on vehicle. If you do have low coolant, don’t fill it up until the engine has cooled off. Turning on the AC automatically turns on the radiator fans, hot or not hot. Do you have the check engine light on. Run jumper wires between the connector's two electrical terminals. How to fix a radiator control module of a dodge Gland Caravan 2000 – JustAnswer, 8 Things The World’s Most Successful People All Have In Common, Japanese adults vent dark obsession with young girls at ‘little idols’ concerts | The Japan Times, The drugs do work: Study seeks to end antidepressant debate | The Japan Times, Drinking Alcohol Tied to Long Life in New Study, Debtors’ prison: ACLU report details ‘criminalization of private debt’, Mild Viral Infection May Trigger Celiac Disease Years Later. Firstly, the ECU will not turn on the fan itself until the engine is quite a bit over the normal operating temperature. Disconnect wire connectors from back of headlamp module. Remove headlamp module from radiator closure panel. Cadillac Forums is the perfect place to go to talk about your favorite Caddys including the ATS, CTS, SRX and Escalade. I must find out now why my coolant was low. Let it cool down first. The radiator fan relay on about 150,000 of the above listed vehicles, may not turn on the radiator cooling fans. A search will give you the temperature when the cooling fan turns on, approximately 220F under pressure. If the Radiator fan control module has failed you will need to replace it with a new one there is no way to repair it. 2002.5 F55 CORSA STS, 2014 Explorer XLT FWD. 5 Reasons Why Your Radiator Fan is not working 1. The radiator fan itself may be faulty. Fans do not come on when the a/c compressor is running, the pcm controls the fans via coolant temperature and refrigerant pressure. This video will show you why and how to fix the problem. Here are the most common reasons that your radiator fan does not turn on: Let it cool down first. Check the coolant temperature sensor at the top of the engine, Fig 96 Engine Coolant Temperature Sensor Connector, Check the relay for the fans: (MOST LIKELY FAILURE AND MOST DIFFICULT). Where is the switch? Here is how to test if the fan is functioning properly: 1. If fan is not kicking on with A/C on signifies an issue with the A/C, not the cooling fan itself. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. Engine running hot. Its turn on just fine. From inside engine compartment, remove nuts holding headlamp module to radiator closure panel. 11 Posts . Ensure the relay is properly attached to prevent relay “thermal” shutdown and relay damage, resulting in possible engine overheating. Faulty Coolant Temperature Sensor. Place headlamp module in position on radiator closure panel. More difficult but a little more likely. Just the other day I noticed that my radiator fan was not clicking on at all. How to fix cooling fan staying on after turning off engine. Radiator fans do not turn on Dodge Grand Caravan or dodge caravan. If the high side spikes and the fans don’t turn on, I would suspect a problem with what is called the A/C pressure transducer (high side switch), one or both fan relays, the fan motors themselves, an ambient temperature switch or the sun sensor. For installation, reverse the above procedure using new rivets included with the solid state relay. Fleetwood, 60 Special, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Test the resistance of the wire harness between the PCM connector terminal 26 and the sensor harness connector. About your vehicle. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. How to fix Radiador Fan that wouldn't shut off...,Honda, Nissan, toyota, acura, kia ,lexus, chevy, Cadillac, ford, bmw, mercedes, etc This guide will show you how to install a switch so you can manually override the ECU's control of the engine's cooling fan. It will spin freely by hand. Want Answer 0. 1 check the 40A fuse in the fuse box under the hood on the drivers side. And one morw thimg change the surge tank cap they go bad it could be that. Also a radiator fan relay, The radiator fan relay on about 150,000 of the above listed vehicles, may not turn on the radiator. A common sign of a faulty switch, which can also be alarming, is that the switch will simply not turn the fans on at the predetermined temperature level resulting in engine heat climbing above … My coolant temps were spiking to 230 deg and still the fan would not kick on unless I had the AC on. You have temperature in the mid 30s turn the ac on by lowering the the isse temp to 60 and see if the fan come on. Next it says to check the fan switch, where is this switch located ? If so, a replacement fan costs upwards of $45. Where should I start. Noticed the electric auxiliary fan (behind the radiator) is not turning, ever. Most fans will only kick on at about 220-230 to prevent overheating. Temp gauge went in the red area (270)while in bumper to bumper pre-Patriots parade/snowstorm traffic in Boston this morning. See Contact Test in Step 1. 431 Posts . Be sure to inspect the connector for the module and for the fans for melting and burning, if you find any it must be repaired or the new components will fail. If it does, this could point to a faulty switch (or airlocked radiator / low coolant / jammed thermostat). Same when you're at idle. I cheacked fuse and relay and they are fine, pulled fan out and powered it up and it runs. You may be loosing antifreeze behind the water pump housing. The inside of the lid to the fuse box will tell you which one it is. 2. 1 check the 40A fuse in the fuse box under the hood on the drivers side. Also check the bolt of under the hood fuse box they get loose. Level was just below cold level when fans were not working. Remove screw holding top of module to closure panel. Recently bought this car. Anyone know a general cause for this? Fuse. The movement of the car usually provides more than enough air flow over the radiator to sufficiently cool the engine. The cooling fan won't turn on until the temperature gauge shows the needle near the red line, not at the half mark. 3. I know this for a fact based on my 06 and 10 DTS's. 1. If the fan doesn't work with direct battery power, examine the terminal that plugs to the radiator fan connector. Bigtone, the issue does seem to be related to the coolant level. The radiator fan under the seat is not coming on, the manual said to check a few things. Keep moving, this is not the page you are looking for. My 2006 DTS began to overheat in slow traffic today, defroster on. Clicking this will make more experts see the question and we will remind you when it gets answered. Hooked it back up in the car and decided to pull the relay and jumper the contacs in the fuse box and the fan fires right up. it would not turn on, but the back light seemed to be on and i could hear the computer running and responding to my touches. Hello, New to forum and to Mini's. Where should I start. Your Outback’s radiator fan will not kick on. You very l k pat fan the Seahawks gave you the game. Electric Radiator fans do not come on when engine is hot nor after turning off, will only come on when AC is turned on. The ECU is responsible for starting the radiator fan … Whenever something electrical doesn’t work, the first thing to check is the fuse. If the radiator can't keep up, the fan comes on to give some help. Remove the left side headlamp bulb from the headlamp housing. Hello I have a 2002 honda civic ex. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Radiator fans do not turn on Dodge Grand Caravan or dodge caravan. Your HHR’s radiator fan will not kick on. The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. In order for the AC Condensor to do its job it must stay as cool as it can. If the a/c doesn't run then the cooling fan isn't needed. The inside of the lid to the fuse box will tell you which one it is. Open Question. Hello and welcome to Just answer.com, Super mechanic here. I added coolant then the fans came on. After reading lots of posts here (thanks for all the info! More complicated but thorough information: I have a 1998 Dodge caravan and a p1698 troubleshooting code. There are a few simple reasons that the fan would not be cycling on. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block. Recently I wanted to use my surface pro 4 i5. somehow i got the computer to reboot and fix itself. A bad sensor will tell the car that everything is normal while the engine overheats. Customer Satisfaction Notification # XXXXX — Radiator Fan Relay and Reprogram Powertrain Control Module. Check for any blown fuses or a tripping breaker. Almost everything electrical is supported by a fuse so that if there is an electrical surge going... 2. Also check for continuity between PCM connector terminal 43 and the sensor harness connector. Posted by greengobby on Sep 18, 2012. Radiator fan not turning on - 1992 Saturn SL2. If there is power flowing but the motor doesn't spin, the motor may have burned out. The headlamp module must be removed to access the relay. That back gasket of the water pump housing leak. Radiator fan not... Share on Facebook; ... Share by Email × Question about 1992 Saturn SL2. For a better experience, please enable JavaScript in your browser before proceeding. CAUTION: The relay mounting location is designed to dissipate heat. 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