Question about 1994 GMC Sierra

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Fan blower not working. suspect faulty relay. If so, where is said relay?

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Check fuse in fuse box in the cabin. Then check the "fuse box" under the hood. Relays are normally there.

Posted on Mar 12, 2010

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98 dodge Ram 1500 electrical manual? Heater quit working, fan not turning on?


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Ac fan not working, ac is cold but fan won't blow air into cab...


check the fan itself to see if it works. check the heater fuse first! if all is ok, you probably have a bad heater fan resistor. to check blower, please go here on pc for info on blower. .cargurus.com/Cars/Discussion-t16272_ds569146

May 21, 2014 | Cars & Trucks

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Fan heater blower not working, car all steamed up and cold etc. Checked fuses but all ok, suspect relay but not sure where the location is. Maybe fan has had its days but want to rule out relay first! Can...


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Dec 23, 2012 | 2005 Volvo XC90

1 Answer

Dodge Stratus R/T fan doesn't come on while car is running and car is getting hot.


FAN NOT WORKING


It can be issue with faulty motor or its faulty fan control relay.


Bother are to be inspected.

Test volt at fan relay and fan motor.

-------------

For more help, I suggest you to go through the troubleshooting links mentioned below:-----

Click the link below: ------

How to replace Cooling Fan on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html

--------------

OBD Code P1490 low speed fan relay ckt open-short

http://schematicsdiagram.blogspot.com/2012/11/obd-code-p1490-low-speed-fan-relay-ckt.html

---------------

Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

----------

How does Vehicles Engine cooling system works?

http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

---------------

Hyundai Sonata cooling fan not working

http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html

-------------

Fuel pump relay and cooling fan relay troubleshooting on 1997 ford thunderbird?

http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

--------------

Fan belt routing diagram for 2004 Volkswagen Jetta?

http://carbeltrouting.blogspot.com/2011/12/fan-belt-routing-diagram-for-2004.html

---------

Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html

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A/C, heater, defroster fan, not working?

http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html

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Blower fan not running on Isuzu trooper?

http://technoanswers.blogspot.in/2012/02/blower-fan-not-running-on-isuzu-trooper.html

---------

How to replace blower motor fan assembly on 2000 GMC Yukon?

http://repairhelpcenter.blogspot.com/2012/01/how-to-replace-blower-motor-fan.html

----------

Heater AC or defroster fan not working on KIA?

http://technoanswers.blogspot.in/2012/02/heater-ac-or-defroster-fan-not-working.html

------------

These will help.

Thanks.

Nov 27, 2012 | Cars & Trucks

3 Answers

Fan won't work


It can be issue with faulty motor or its faulty fan control relay.
Bother are to be inspected.Test volt at fan relay and fan motor.-------------
For more help,i suggest you to go through the troubleshooting links mentioned below:-----Click the link below:------

How to replace Cooling Fan on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html
--------------

OBD Code P1490 low speed fan relay ckt open-short
http://schematicsdiagram.blogspot.com/2012/11/obd-code-p1490-low-speed-fan-relay-ckt.html
---------------

Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

----------

How does Vehicles Engine cooling system works?

http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

---------------

Hyundai Sonata cooling fan not working

http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html

-------------

Fuel pump relay and cooling fan relay troubleshooting on 1997 ford thunderbird?

http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html
--------------

Fan belt routing diagram for 2004 Volkswagen Jetta?

http://carbeltrouting.blogspot.com/2011/12/fan-belt-routing-diagram-for-2004.html
---------

Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html
-------------

A/C, heater, defroster fan, not working?

http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
---------

Blower fan not running on Isuzu trooper?

http://technoanswers.blogspot.in/2012/02/blower-fan-not-running-on-isuzu-trooper.html
---------

How to replace blower motor fan assembly on 2000 GMC Yukon?

http://repairhelpcenter.blogspot.com/2012/01/how-to-replace-blower-motor-fan.html
----------

Heater AC or defroster fan not working on KIA?

http://technoanswers.blogspot.in/2012/02/heater-ac-or-defroster-fan-not-working.html
------------These will help.Thanks.

Nov 27, 2012 | Cars & Trucks

1 Answer

My fan blower works only on high


This may help. 10A fuse 6 and 10A fuse 12 in the passenger compartment junction block protect the blower. While you're at it, check 10a fuse 25 which protects memory power in the A/C control module. The 10A BLOWER fuse in the engine compartment junction block applies 12V power to the blower relay, not the high blower relay which, from your description, is working. If the fuses are OK, the blower relay is suspect. Also, the A/C control module may be defective.

Sep 12, 2012 | Hyundai Motor 2005 XG350

2 Answers

Po 480b cooling fan relay 1 control circuit what exactly does that mean?


Lets take a look at the relay first. This is a device that takes a small amount of voltage (computer signal), and passes it off (through a magnetically induced switch) to a higher voltage- like a relay race.
The circuit would consist of a power source (battery), wiring, a switching device (sensor and computer), relay, fan, and ground. According to the trouble code, the indication is that something along this circuit is defective or malfunctioning.
For a do-it-yourself diagnosis, first you wanna check the fan to see if it can free spin. This will confirm that it isn't siezed. Next you wanna start the vehicle, and let the temp gauge go to halfway. The fan should activate. If it doesn't, turn on the a/c. If this cuts the fan on, then the relay is working. If it doesn't suspect a faulty fan relay. In the event that the a/c does cut the fan on, then suspect a faulty coolant temp/fan switch.

Sep 20, 2011 | 2003 Chevrolet Impala

1 Answer

The car's fan does not blow air in position 1 or


I would suspect the Blower Resistor. Its there near the blower motor.

Dec 02, 2009 | 2000 Honda Accord

1 Answer

Blower working on top 2 settings but no air comeing from vents


Hi

Thanks for using FixYa. The possible causes due to which the blower is not working normally are fuse, blower resistor or a bad blower motor. Test the voltage at the blower with a test light. Please check the motor relay switch fuse under the dashboard. Use a multi meter to measure ohms for continuity. If these are fine, bypass the blower motor relay switch to make sure blower motor is running fine. Motor relay switch is right next to radiator fan relay switch under the hood. Pull out the blower motor relay switch to see 4 female pin holes. Test the relay switch using a 12 volts power source and a multi meter to measure continuity. If fan works after jumping the pin holes, then blower motor is fine but relay switch may be faulty. You may also need to replace the blower motor resistor. If still the problem persists, then you need to replace the blower motor.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Aug 09, 2009 | 1997 Honda Civic

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