Blower Motor Resistor

[Mrsteve125]

Does anyone know where to find the blower motor resistor on a 2008 Nissan Quest Base model? Fan speed settings not working.

[macgiver]

mac ,I believe the speed variation (if "infinitely variable" ) is derived via a "finned" (heat-sink) POWER TRANSISTOR , and if you are failing to do a "Lookup" locating a RESISTOR is why you can't find it . By the way a big POWER RESISTOR may be in the ckt. - but they are simple , "Bullet proof" (compared to the transistor) and DO NOT themselves change the speed of your fan. Old school - incrementally / "stepped" speed(s) used to use a "multi-tapped bridge" resistor , and the highest speed was simply full B+ voltage to the fan . Locating that Finned transistor in FSM , or "Google" images may point location out ! GT

[04pathse]

https://www.youtube.com/watch?v=7IvkG69PEuM

https://www.ebay.com/itm/HVAC-Blower-Mo ... KC&vxp=mtr

[far raf]

+1 for burnt transistor being most likely root cause. This is a famous thing on Honda forums and we figured a replacement part. If I remember correctly any high current PIC* series would work.