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What will cause the cooling fan motor to not work on a 2014 Malibu LTZ 2.0 L engine ?

The engine is over heating because the fan is not working. I know for a fact that the fuse, relay and the fan motor are good. When I turn on the air conditioner the drivers side fan comes on but the passenger side fan doesn't come on at any time. When I hot wired the passengers side fan it will work. It must be some kind of sensor or similar part. I need a wiring diagram of the electrical circuit of the fan motors for the passenger side & drivers side circuits.

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  • 42 Answers

Check the fuse

Posted on Aug 06, 2019

Testimonial: "It was the coolant temperature switch, thanks for your answer"

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Temperature thermo switch faulty

Posted on Aug 05, 2019

Testimonial: "That was it , thanks"

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Wiring short--failed connection --the coolant sensor controls fans ie a/c goes on secondary fan comes on -- https://www.google.com/search?rlz=1C1CHBF_enUS812US812&q=2014+malibu+wiring+diagram&tbm=isch&source=univ&sa=X&ved=2ahUKEwiM0Y_X_rvjAhUrn-AKHfY4A5AQsAR6BAgFEAE&biw=1600&bih=789 or sign into autozone.com and search their diagrams

Posted on Jul 17, 2019

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I agree with the others. It appears you two coolant temp sensors, one is in the water outlet, in the picture. #9 at top right, you can see the plumbing that goes down to water pump. The other one is in the radiator. Sometimes with sensors, a bad signal is worse than no signal at all. No signal and the computer may use a default signal which is better than bad signal. Some makes and models, if you turn on the ac the fan will run. If you unplug the cts, the fan will run. Now, whether one or both fans should run?
What will cause the cooling fan motor to not work  - cts-vnl4bz2sdkczsmibvcr454iu-5-0.jpg

Posted on Aug 03, 2019

Testimonial: "Here is what's been done, I took the coolant temperature sensor plug in off with the engine running & the drivers side fan came on but the passengers fan didn't come on but when I turned the motor off the drivers side fan kept running, had to remove the fan fuse to stop the fan from working. Do you have a pictorial view for the radiator coolant switch that you were talking about. Send the one with the radiator coolant switch similar to the picture you sent here that has the sensor near the water pump if u don't mind, Thanks"

  • jack layton
    jack layton Aug 06, 2019

    hope this helps

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  • 42 Answers

CHECK THE SENSOR... IF YOU CAN DO A SCAN TO FIND THE CODES.

Posted on Aug 03, 2019

Testimonial: "It was the coolant sensor, thanks for your answer"

  • 4 more comments 
  • sherman north Aug 03, 2019

    I disconnected the plug in to the coolant sensor & drivers side fan came on but the passengers side didn't come on while the motor was running

  • sherman north Aug 03, 2019

    no check engine light was on prior to disconnecting the coolant plug in

  • RAFAEL Aug 03, 2019

    PERHAPS THE FAN IS BROKEN , CHECK IT MAYBE YOU NEED TO REPLACE IT

  • sherman north Aug 04, 2019

    when the fans are hot wired they work

  • RAFAEL Aug 04, 2019

    TO CHECK FANS TURN THE CAR ON THEN TURN ON A/C FULL BLAST THEN THE FANS SHOULD START TO COOL OFF THE RADIATOR .

  • sherman north Aug 04, 2019

    the drivers side fan works the AC is turned on but when it's off it doesn't work

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Likely a bad coolant temp sensor

Posted on Jul 17, 2019

Testimonial: "Where would that be located? I need to know exactly where that is. Thank you"

  • 4 more comments 
  • sherman north Aug 03, 2019

    would it give a coolant sensor check engine code

  • Scott Campbell
    Scott Campbell Aug 03, 2019

    Maybe- some give a code if theres a complete fault (broken wire). But if the sensor is just sending the wrong signal, the computer wont know.

  • sherman north Aug 04, 2019

    ok, are there any more sensors in the circuits that controls the fans besides the coolant sensor, if so, do you have a picture of the circuits ? There are no check engine codes.

  • sherman north Aug 06, 2019

    Scott, it was the coolant sensor,ti was hidden down in the motor, hard to get to but it's fixed now, it has a u shaped clip that holds it, thank you here is an image of the coolant sensor below

  • sherman north Aug 06, 2019

    this coolant sensor is located the drivers side of the motor

  • Scott Campbell
    Scott Campbell Aug 06, 2019

    Well done!

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SOURCE: blower motor not working for

I've had this problem before too...first check to see if your fan can be rotated by hand (make sure the car isn't running while checking). If you can't spin the fan by hand, then you need to replace the fan. The cooling fan has a 40A fuse in the fuse box under the hood (driver's side). If your fan has siezed, it will trip this fuse too.

Posted on Aug 30, 2010

czaa
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SOURCE: 1997 Malibu DTC P1652

u need a data stream run on car that displays values for a tech to decyfer--code scanners dont cut it--factory equip at a private shop does----like the magicmechanic online--send him this issue

Posted on Nov 20, 2013

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Please rate and god bless.








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