Ac\heater run with key turned on

[stedman3]

In my 91 q45, the ac\heater runs with key on, motor off, and ac\heater controls turned off. Any suggestion? Another enthusiast mention Darlington transistor bridge- what is where is located or what is it part of?

[goody90q45]

A very common problem. Here's a link with instructions to fix it.

http://www.q45.org/darlington.html

[maxnix]

All this and more is in the Infiniti Mechanic Forum.