It can be issue with faulty motor or its faulty fan control relay. OBD Code P1490 low speed fan
relay ckt open-short 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
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
--------------
http://schematicsdiagram.blogspot.com/2012/11/obd-code-p1490-low-speed-fan-relay-ckt.html
---------------Engine cooling components 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.
How to replace a camshaft sensor on a 1991 BMW 325i
That looks like a coolant temperature sensor to me. Locate the old on that will be on the intake manifold , disconnect the wire connector, unscrew it from the intake and install the new one.
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