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could be the blower motor it self. usually when resistor failes the blower will only work on HIGH or number 4 on your dash. when resistor burns out, all speeds other than 4 tend to stop working and blower works on high because its getting 12V/batter voltage applied to it, when on lets say speed number 3 the blower gets less voltage thus resulting is slower operation. put 12V/battery voltage to the blower motor directlly and see if it comes on. it should crank pretty fast so hold it tight when you are ready to put battery voltage to it.
I am postive that your problem is the blower motor resister. it is located behind the glove box and Ibeielve it has 4 wires. It would be about $40 i think at a Nissan dealer. very easy to replace. about 6 srews on the glove box and then 2 sr=crews on the rsister.
if your blower motro only works on the #4 setting you need a resistor.cheap and easy to change.located next to blower motor under pass. side of dash.two phillips screws secure it.if it fails again replace blower motor as it is drawing too much current and overheating resistors.let me know how it turns out.
The resistor is most likely bad but should still work on the highest setting.Would check pigtails to the resistor and to the blower motor for burnt or discolored wiring.You can try tapping the blower motor and wiggling the wiring harness too see if it will work on the highest setting. It is possible that the blower motor is bad as well typically when you lose the speed selection it is the resistor but you should always have high speed.
Hi. This will be the result of a failed resistor switch. the switch controls the current level sent to the blower motor. Once replaced, the motor will operate at your desired rate. This switch is an integrated part of the AC/Heater control cluster, that is mounted in your dash. You will need to remove the trim, and cluster assembly to expose the damaged switch.
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