Nissantechinfo.com Nissantechinfo.com All he had to do was look at the wiring diagram, which shows the circuit from the blower motor goes through a "variable blower control - front" (there is no rear on this model) into the "front air control" (HVAC control module). That's all electronics and it isn't uncommon for an electronic blower control to fail in a number of ways, including to just low blower speed. (Fig. 5) In the case of the Frontier, you have to go back to 2008 to find a conventional resistor (Fig. 6). We went back even further (to 2005) and couldn't find cables, so it's electrical/electronic all the way. ■ Figure 6: We had to go back to 2008 for a Frontier with a conventional blower resistor. But even this system uses electronic control of electrical actuators. Figure 5: 2012 Nissan Frontier wiring diagram shows variable blower control, wired to the front air control. That should make it clear that the car has an electronic control, not a conventional resistor. September 2016 4 MACS Service Reportshttp://www.nissanstechinfo.com http://www.nissanstechinfo.com https://www.youtube.com/user/MACSWorldwide https://plus.google.com/109580133945503595889 https://www.twitter.com/MACS_Worldwide https://macsworldwide.wordpress.com/ https://www.facebook.com/MACSW https://www.linkedin.com/start/join?trk=login_reg_redirect&session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F1759747