2012 chevy malibu climate control unit not working

The most common causes for AC fan blower motor not working in Chevy Malibu are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.

2012 chevy malibu climate control unit not working. 134 posts · Joined 2005. #1 · Jun 8, 2016. Bought the truck in Jan. 2016 and the climate control has been flawless until the other night. It was a little chilly out and I turned the temperature dial up for heat and had none. I have tried it numerous times in the past week and still no heat coming out of the vents. The AC seems to work fine.

2008-2012 Chevrolet Malibu AC Heater Climate Control Temperature Unit G03B48064. Blacktop Auto Parts. (19263) 99.6% positive. Seller's other items. Contact seller. US $33.59. Was US $59.99(44% off) Price details.

Some forget or don't realize there is one to change. 5) have you used a thermometer to monitor the temperature coming out of the vents during the (it works cold in the morning) and when it isn't. These are just some of the things to consider. 6) Finally, is the condensation tube under the car plugged.Almuqbeel Discussion starter. 1 post · Joined 2016. #1 · Jan 16, 2016. Hello guys, I have Malibu 2013, a week ago I changed my battery and after that the climate control panel stopped working. There's no light and no control. I think it is the fuse but I don't know which one! Please help it is getting hot and Saudi and I need my AC back ^_^.Fan Control. Controls the speed of air delivered through the system vents. If your vehicle has Fan Up/Down buttons, then pressing the larger fan button increases fan speed; pressing the smaller fan button decreases fan speed. If your vehicle has a Fan knob, then turning the knob counterclockwise will decrease the fan speed and turning clockwise ...The most common causes for AC fan blower motor not working in Chevy Tahoe are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.Let's look at the best option for an A/C reset on a Chevy Silverado. To reset your air conditioner, follow these steps: Turn off the vehicle. Open the hood. Locate the HVAC fuse (check the owner's manual). Unplug the HVAC fuse. Wait 10 seconds. Plug the HVAC fuse back in. After two minutes, turn the vehicle on.ACDelco A/C Control Module 15-74164. $27199. Location: A/C Control Module. Part # 15-74164. SKU # 1265025. Year Warranty. Checkif this fits your 2012 Chevrolet Silverado 1500. Select store for pickup availability. StandardDelivery by May 21.This morning I turned on the heater and it never got warm, so I decided to try the AC, never changed temp. the numbers change when you press the button, but the …

Some forget or don't realize there is one to change. 5) have you used a thermometer to monitor the temperature coming out of the vents during the (it works cold in the morning) and when it isn't. These are just some of the things to consider. 6) Finally, is the condensation tube under the car plugged.Climate Control Not Working Auto Unit Quit. All Wiring Diagrams For Chevrolet Malibu Ltz 2012 Cars. Chevrolet Car Pdf Manual Wiring Diagram Fault Codes Dtc. 2013 2015 Chevy Malibu Fuse Box Diagram. Chevrolet 2008 2012 Malibu Head Unit Pinout Diagram Pinoutguide Com. 2008 2012 Gm Chevy Malibu Ecotec Le5 I4 Engine Spark Plugs Replacement Guide ...This morning I turned on the heater and it never got warm, so I decided to try the AC, never changed temp. the numbers change when you press the button, but the …Problem Description. Entire Climate Control Panel is unresponsive, save the warning indicator, which works normally. Climate Control lights on the panel don't work either when this problem occurs, and sometimes the lights come back on -- but the panel still is unresponsive. Radio controls are completely unresponsive.3 posts · Joined 2011. #1 · Apr 4, 2011. I have an '09 Malibu LTZ and the heated seats stopped working. A few weeks ago they got really hot and I felt like my rear was on fire. Then it won't come back on (just driver's side). The light lights up but no heat. I also noticed today that my seat belt dinger did not go off when I didn't have my ...2012 Chevy Malibu Climate Control Unit Not Working First, ensure the unit is turned on and set to the desired temperature. If it is, then the next step is to check the fuse box under the hood to see if the fuse for the climate control unit has blown.Try pulling hvac fuse under hood for 60 seconds first as it may reset the actuators. see pic for temp actuator, if you have both left and right temps this is also for right side. Check out the diagrams (Below) Please let us know if you need anything else to get the problem fixed. Images (Click to make bigger) Was this.

In some models, a special scanner may be necessary to reset the Malibu airbag light, but in some cases ignition key cycles, the door jamb switch or a jumper wire work to reset the ...A Problematic Fuse. If the battery, sensors, and the blend door actuator are okay, then one or more fuses may be the cause. Your climate control display relies on electricity from the battery and the alternator. Fuses commonly blow, and a blown one in the circuitry will cut off the power making your system not function.Instrument Panel Fuse Block. The instrument panel fuse box is on the driver side of the instrument panel. To access the fuses: Open the fuse block cover by pulling out at the top. Remove the lower edge of the cover. Remove the cover. To reinstall the cover, reverse the steps above. №.Ask Your Own Chevy Question. First you will need to check the interior junction box at fuse 33. This is for the climate control. If the fuse is blown it will disable the climate control unit. If the fuse is good then you will need to take this vehicle to the dealership because there will be stored fault codes in the HVAC unit for this issue.H. hocktl Discussion starter. 4 posts · Joined 2017. #1 · Dec 22, 2017. 07 Crew Cab LT dual climate control digital display window is blank. Checked fuses by drivers side door and under hood. All good. Lacking any diagrams to check voltages I just assumed the module went bad. Came in today and swapped it out and still have a blank display.

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The most common causes of why a radiator fan is not working are a blown fuse, a bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged. While these are some of the reasons, the list is not exhaustive. Here is a more detailed list of the most common causes of a ...ACDelco 36 Terminal HVAC Climate Control Panel - New - 15-74176. Part #: 15-74176. Line: ACD. Check Vehicle Fit. Control Panel Front A/C - Electronic Controls (C67),Lh And Rh Folding Outside Mirror (De2),Wide Load Folding Outside Mirror (Df2); Except Electric Rear Window Defogger (C49) 1 Year Limited Warranty.On 07/03/2018 this truck experienced a total HVAC failure - no fan, no heat, no a/c. Upon investigation, found the a/c control module under the dash located in the duct-work had failed.Low Coolant. While not having enough coolant may make your engine run hotter, it can also cause your Malibu to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself. You can verify this by checking the coolant level by taking a peek at the ...

C6 Corvette Climate Control Unit / Module Repair. This repair my fix the flashing display and not working at times problem. It is a basic rebuild/Repair of t...It is called the mode door actuator. It controls air flow out the vents. Roy. 1. Remove the floor air outlet duct extension (1) from the floor duct (2). 2. Remove the center console. 3. Remove the screws from the center console duct.The climate control module on your Chevrolet Avalanche allows you to adjust the heating and A/C inside your vehicle. When you adjust the heating and A/C temperature and vent position controls on the climate control module, it causes actuators under the dash to change their position to produce the desired result.2010 chevy equinox no heatChevy equinox 2012 ac not working Chevy equinox ac drain locationEquinox climate control system. ... Chevy equinox ac not workingEquinox defrost blows Chevy equinox engine compartment diagramEquinox climate control not working. Chevrolet equinox won't start2012 chevy equinox air …2014 CHEVROLET SILVERADO. 5.3L. V8. 4WD. AUTOMATIC. 70,000 MILES. Have an issue with A/C not working. So far I've checked fuses, relay, changed the compressor with new one, replaced the pressure switch at the compressor, done a Freon flush and refill. A/C is still not working, would appreciate any tips as to what else could be causing the ...Some vehicles can have problems with the motors, while others have control module issues. Whatever the cause, these systems take electrical diagnostic skills to be able to diagnose and repair. More information on AC problems. Chevrolet Silverado 1500 AC Not Working; Ford Escape AC Not Working; Ford Explorer AC Not Working; Ford F-150 AC Not Working30 posts · Joined 2020. #1 · May 13, 2020. In my mother's 2013 Chevy Malibu LS, the Instrument Cluster Panel (ICP) is not working. It is not coming on, can't see how fast she is going, how much gas is in the car, etc. At first, this was an intermittent problem. Sometimes the ICP would not come on when starting the car, sometimes it would ...Jan 6, 2014. Messages. 5. Reaction score. 0. I have a 2013 Chevy equinox with factory remote start. The remote start all of a sudden stopped working. The power door locks work but not the remote start. When you lock the doors the horn sounds and then you hold down the remote start button for 3 seconds or so and the lights flash but the car ...One way to diagnose climate control problems in Chevy Silverado is by using a diagnostic scanner. This scanner can read trouble codes, indicating specific problems with the heating, ventilation, and air conditioning (HVAC) system. It can also help identify any issues with the sensors, actuators, or other components causing the problem.Dorman Climate Control Modules . Dorman climate control modules offer a direct, seamless repair with the convenience of plug-and-play installation. Remanufactured HVAC modules and a growing range of brand new units based on application are available, each of which is fully tested to restore critical operations.

Fan Control. Controls the speed of air delivered through the system vents. If your vehicle has Fan Up/Down buttons, then pressing the larger fan button increases fan speed; pressing the smaller fan button decreases fan speed. If your vehicle has a Fan knob, then turning the knob counterclockwise will decrease the fan speed and turning clockwise ...

2015. If the 2015 Chevy Malibu is having issues with the climate control system, then it can be a few things. If the blend actuator motor is bad then You will not be able to control the temperature of the air coming into the car, nor will You be able to control the intensity of the air. If the fan motor is bad then You will find that the air ...The fix. To fix this problem, disconnect the battery for ten minutes, then connect it back on. Turn on the ignition key without starting the truck. Wait for 5 seconds and repeat this process, turning on/off the ignition three times. This will cause a re-calibration of the climate control module.Climate control screen blank. I recently started having trouble with my Climate controls. The screen shows up blank but the defrost and mirror heater lights are still on and will work. If the temperature is cold enough outside the heat will come on like its set to auto but nothing when its hot outside. None of the buttons work and screen stays ...Everything okay no power control Check two controllers no power . Mark helpful. Your Answer: Upload Photo. Photo (optional) ... 2010 Chevy Malibu HVAC control cluster not working 3 Answers. HiMy chevy Malibu 2010 HVAC control cluster has no lights on any of 4 small bulbs for heater, cooling, rear heater and fresh air. ...It is called the mode door actuator. It controls air flow out the vents. Roy. 1. Remove the floor air outlet duct extension (1) from the floor duct (2). 2. Remove the center console. 3. Remove the screws from the center console duct.Press the AUTO button. This may be located on the centerstack, within the climate app on your infotainment screen or in both places. Locations vary by vehicle; check your Owner’s Manual. Set your desired temperature. The system is designed to adjust the fan speed, air flow distribution and delivered air temperature to quickly and efficiently ...1. Loose Connections At The Wiring Harness. You replaced it but the new blend door actuator is not working! If the wires come loose at the wiring harness at the back of the module for actuators, replacing the actuator alone will not get any luck. Despite changing the actuator, the blend door actuator will not get the power it needs for operating.2016 Chevy Malibu 1LT 1.5T/6-speed 165k miles 2019 F-150 SuperCrew 5.0L/10-speed ... Jumped it again today and suddenly the climate controls work again. Drove it to Autozone to get them to test the battery and read codes. ... Fuel Pump Driver Control Module Enable Circuit Performance C0800-12 Control Module Power Circuit-Low InputCommunicate with one of our specialists. Learn everything there is to know about your Chevrolet vehicle's various climate features, including heated steering wheel, defrosting and more.

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The most common causes for AC fan blower motor not working in Chevy Avalanche are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.Check the pins I circled at the control unit. If you have power then the control unit is the failure. Roy 1. Remove the instrument panel accessory trim plate. 2. Remove the screws from the HVAC control module. 3. Depress the control assembly retaining tabs and remove the HVAC control module from the instrument panel. 4.The 2012 Chevrolet Silverado has 3 different fuse boxes: Underhood Fuse Block diagram ... Auxiliary Climate Control (Ignition) Fuse MINI . 49. Center High-Mounted Stoplamp (CHMSL) Fuse ... Accessory Power Outlet. Fuse MINI . 54. SEO Upfitter Usage. Fuse MINI . 55. Climate Controls (Ignition) Fuse MINI . 56. Engine Control Module, Secondary Fuel ...What you are describing is very likely a failed MODE door actuator. Before changing any more parts, a resync of the HVAC actuators might prove helpful. First, start the engine and then turn everything on the HVAC to off with the temp sliders on full cold. Shut the engine off and disconnect the battery for a few minutes.2009 Chevrolet Malibu A/C Controls Inop. Sparky June 3, 2015 A/C, Blower, Chevrolet, Compressor Clutch, Malibu. This 2009 Chevrolet Malibu came in with the complaint that the a/c controls did not work and the whole system was dead. No blower and no compressor engagement. The customer had already bought and installed a new HVAC control head ...Climate control screen blank. I recently started having trouble with my Climate controls. The screen shows up blank but the defrost and mirror heater lights are still on and will work. If the temperature is cold enough outside the heat will come on like its set to auto but nothing when its hot outside. None of the buttons work and screen stays ...Please feel free to contact GM of Canada if further assistance is needed with your climate buttons. Their number is 800-263-3777 and they can be reached Monday through Friday from 7:30 AM until 11:30 PM and Saturday from 7:30 AM until 6:00 PM EST. If you have further questions, don't hesitate to contact us! Kristen A. Chevrolet Customer Care06 Apr,2019 ... HOW TO TEST BLEND DOOR ACTUATOR, CLIMATE CONTROL, HEATER, TEMP CONTROL ANY CAR In this video we will show you how to test blend door ...ACDelco A/C Control Module 15-74164. $27199. Location: A/C Control Module. Part # 15-74164. SKU # 1265025. Year Warranty. Checkif this fits your 2012 Chevrolet Silverado 1500. Select store for pickup availability. StandardDelivery by May 21.Remote work has already reduced US carbon dioxide emissions by 7.5%. AI can make things even better. Widespread remote work has always felt just a few years away—something you coul... ….

ACDelco 36 Terminal HVAC Climate Control Panel - New - 15-74176. Part #: 15-74176. Line: ACD. Check Vehicle Fit. Control Panel Front A/C - Electronic Controls (C67),Lh And Rh Folding Outside Mirror (De2),Wide Load Folding Outside Mirror (Df2); Except Electric Rear Window Defogger (C49) 1 Year Limited Warranty.2012 malibu intermittent heat (fan) Hi everyone! This is my first post here, sorry its a long one but this has been very frustrating. I have a 2012 ltz with the auto hvac controls. Ive been having problems with the blower motor working when it wants to. My fiance is the main user of the car and said that the fan had been working and then not ...What you are describing is very likely a failed MODE door actuator. Before changing any more parts, a resync of the HVAC actuators might prove helpful. First, start the engine and then turn everything on the HVAC to off with the temp sliders on full cold. Shut the engine off and disconnect the battery for a few minutes.Seamlessly restore operation by easily swapping the malfunctioning original module with this fully tested replacement unit. Direct replacement - this HVAC control module matches the appearance and function of the original unit on specific vehicles. Functionality-tested - module has been tested to ensure the same operation as the stock module.Here’s how: First, locate the fuse box in your car. It should be somewhere near the passengers side of the dash. Once you’ve found it, open up the fuse box and look for a fuse labeled “AC.”. This fuse powers the AC control module. Remove this fuse and then wait about 30 seconds before putting it back in.Due to Chevrolet's great engineering on their 3.1liter 6V engine, mine is overheating. Bleed the air out first of cooling system and then check if fans come on. If not do not waste anymore time and money!!! This relay saved my engine from overheating!!! Vehicle: 2000 Chevrolet Malibu Auxiliary Fan Control UnitOct 3, 2022 · If voltage goes to the blower motor, it’ll need replacing. If there’s no voltage, test the resistor (YouTube). 2. AC System Not Blowing Cold Enough. The most common reason for your Chevy Malibu’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged).Install the HVAC control module or appropriate actuator. Connect all previously disconnected components. Connect the battery. Place the ignition switch to the ON position. Calibration of the air temperature, recirculation and mode doors happens taking roughly 13 seconds. Verify that no DTCs have set as current DTCs. 2012 chevy malibu climate control unit not working, 2013 Chevy Malibu Climate Control Unit Not Working . If you own a 2013 Chevy Malibu and your climate control unit isn’t working, you may be feeling frustrated and overwhelmed. Don’t worrythere is likely a simple solution to the issue. This overview will provide several potential causes of the problem, along with some steps you can take to …, Feb 6, 2022 · 5. Bad connector or broken wire. A bad connector on the blower motor or the resistor module, or on the climate control unit can interrupt power supply to the blower motor in Impala. Additionally, a damaged wire in the circuit, including the wire from the fuse box, can also cause the blower motor to stop working., WHY AC AIR CONDITIONER DOES NOT WORK CHEVROLET MALIBU 2016 2017 2018 2019 2020 2021 2022 2023If you have Chevrolet Malibu / Chevy Malibu and the A/C AC does ..., My current climate control unit doesn't work at all. The only replacement I could track down was one equipped with rear defrost (my truck doesn't have that option). ... All you need is the two female and one male connector off the original control module and the grey circuit board connector off a 96-99 1500. There's a good wire diagram that ..., The deal went from weak to weaker to weakest. Negotiators entered this month’s United Nations climate conference with optimism after the US and China hashed out a side deal on thei..., 2008-2012 Chevrolet Malibu AC Heater Climate Control Temperature Unit G03B48064. Blacktop Auto Parts. (19263) 99.6% positive. Seller's other items. Contact seller. US $33.59. Was US $59.99(44% off) Price details., When it comes to storage, not all items are created equal. Some possessions require special care and attention to maintain their quality over time. This is where climate controlled..., Oct 17, 2022 · The most common causes for blower motor not working in Chevy Malibu are blown fuse, bad relay, resistor or control module malfunction, and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 10., Please feel free to contact GM of Canada if further assistance is needed with your climate buttons. Their number is 800-263-3777 and they can be reached Monday through Friday from 7:30 AM until 11:30 PM and Saturday from 7:30 AM until 6:00 PM EST. If you have further questions, don't hesitate to contact us! Kristen A. Chevrolet Customer Care, 2014 Chevy Malibu Climate Control Unit Not Working . If you’re having trouble with your 2014 Chevy Malibu’s climate control unit, you’re not alone. Many owners have reported the same issue, and it appears to be a widespread problem. The good news is that GM is aware of the issue and has issued a service bulletin …, 1 post · Joined 2018. #5 · Nov 20, 2018. Alright this may seem crazy but my car, a 2013 Malibu ECO, has a similar problem recently. As I went to change the climate settings, the black bar appeared across the bottom but now white text readouts. This also happened to somehow clear out every single favorited radio station, and saved Bluetooth ..., 3. Reaction score. 0. All of a sudden I can no longer use any radio controls on the dash unit (steering buttons work) Also the buttons for defrost, a/c..etc don't work. The hazard button works and lock/unlock. The radio works and lights up but the buttons that don't work don't light up. Checked all fuses and they seem ok., 6 posts · Joined 2014. #1 · Oct 28, 2019. I have a 2012 1500 Silverado LT with remote start and the remote start will not run the. AC control unit without the key in the ignition with the key switched to On. I tried looking in the manual and can't find anything on it. Side note it used to work if I'm not mistaken but it's not doing it anymore., CHEVROLET CRUZE CLIMATE CONTROL SWITCH, HEATER CONTROL REPLACEMENT REMOVALIn this video we will show you how to remove and replace the climate control switch..., But I notice you also are unable to fill your car to 13 gallons. I too had brought my car in 3 times for this issue and have come to my own conclusion. The car DOES require a special filling method. Pump to click. wait 5-10 seconds, pump to click, wait 5-10 seconds, pump to click. Those last 2 pumps usually fill 1-1.5 gallons., Shop all 2011 Chevrolet Malibu Climate Control products available now on NAPAonline and for pickup at your local NAPA Auto Parts store! ... coming through the vents, even when the air conditioning unit is on full blast. If this is the case with your vehicle, then there's a good chance your A/C needs a recharge to maintain the proper pressure ..., I have a 2013 Chevy Malibu 2.4 ecotec that the radiator fans turn on immediately when the car starts and the AC compressor won't kick on. Plugged into diagnostic it is running at about 185⁰. There is power and ground to the relay and I swapped it out with another one and the fuse is good. The relay doesn't seem to be clicking and …, Low Coolant. While not having enough coolant may make your engine run hotter, it can also cause your Malibu to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself. You can verify this by checking the coolant level by taking a peek at the ..., I tried to use Forscan to reset the HVAC module, but Forscan reported that the HVAC module was not responding. I then removed the fuse for the HVAC module (#71), checked the fuse (which looked fine), and then replaced the fuse. After that, I started the car and found that the HVAC module worked properly, since the power-cycle of the HVAC module ..., 6 posts · Joined 2010. #1 · Nov 14, 2010. Vehicle: 2000 Dakota QC, 4.7L auto, 2wd with AC. My climate control selector appears to act improperly. I recently fixed the AC (full replacement of all under hood components) and the AC runs cold again. But, the climate control mode selector behaves oddly. The AC compressor kicks in when I select ..., WHY AC AIR CONDITIONER DOES NOT WORK CHEVROLET MALIBU 2016 2017 2018 2019 2020 2021 2022 2023If you have Chevrolet Malibu / Chevy Malibu and the A/C AC does ..., This morning I turned on the heater and it never got warm, so I decided to try the AC, never changed temp. the numbers change when you press the button, but the …, This brand new direct replacement restores performance and maintains the original look and feel of certain model years, for a seamless, reliable repair. Direct replacement - this HVAC control module is specially designed to match the appearance and function of the original unit in select vehicles. Plug-and-play installation - just remove the ..., Fan Control. Controls the speed of air delivered through the system vents. If your vehicle has Fan Up/Down buttons, then pressing the larger fan button increases fan speed; pressing the smaller fan button decreases fan speed. If your vehicle has a Fan knob, then turning the knob counterclockwise will decrease the fan speed and turning clockwise ..., The cost of an HVAC module will vary depending on the make and model of your vehicle. However, you can expect to pay around $200 for a new module. If you're looking for a custom module, the cost may be higher depending on the complexity of the programming required. Back to HVAC Replacement & Repair. Discover everything you need to know about ..., 2008-2012 Chevrolet Malibu Digital Climate Control Heater AC HVAC 28272782 OEM (Fits: Chevrolet Malibu) Pre-Owned: Chevrolet. $49.99. ... 13 14 15 Chevy Malibu AC Heater Climate Control Unit Switch 3 Knob w Heated Seat (Fits: Chevrolet Malibu) Pre-Owned: Chevrolet. $31.45. Was: $34.95. or Best Offer., Next I would remove the control unit from the dash and start probing it to be sure it's getting +12V and GND. Then I'd look at the outputs on it to see if they are changing when the knobs are turned. Basically, you keep probing around until you find where the disconnect is, where there's power at one spot on a wire but not at another., You need to start by checking all fuses, checking the inputs to the blower motor module and blower motor. The blower motor control module controls the signal to the blower motor. With it turned on high, there should be full battery voltage (12 volts or 14 volts) and a good ground going to the blower motor., 5. Remove the two screws that hold the blower motor in place and remove the motor. 6. Installation is the reverse of removal. Be sure to connect the electrical connector to the blower motor before reinstalling the screws. 7. Start the engine and turn on the climate control system to test the new module. 8., Try taking out the fuse for the HVAC module. It's in the fuse panel above the glove box. Remove it, wait a few minutes, then put the fuse back in. Start the car, but DO NOT TOUCH the AC controls. All the motors for the AC mode and heater doors will recalibrate., If you're comfortable doing so, unplug the pressure switch and jump across it. If you do and the AC turns on then the switch is bad - if AC doesn't turn on then you may have a blown fuse or damaged wire, or worse a BCM failure. '11 LTZ, born Aug 2010, Fairfax, KS. V6/A6, Red Jewel Tintcoat / Cocoa-Cashmere, Sunroof., The most common causes for AC fan blower motor not working in Chevy TrailBlazer are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1., It sounds like a mode actuator under the dash isn't allowing the climate control to work properly. Although it is possible that the climate control module itself is the culprit, it is more often than not an issue with a mode actuator under the dash that has broken a hing and isn't working properly. Apr 10, 2012. #3. M.