Ok got the BMR for my 91 Yota, installed it, but the AC and Fan only work on low speed. What should I be looking at now, the fan switch, AC button, or what the blower motor itself?
Thanks for any information guys!

 

is the resistor installed correctly? generally when those blow they only work on high. check the switch, as well as the relay for the system.

 

Ok, the resistor only installs one way via electrical connector so I know its right. Where is the relay? I would think if the relay was bad it wouldnt work at all. What is the proceedure for cheecking the swith and relay?

 

check your owners manual for the relay, swap it with another one of the same type. the switch will need to be removed and check the continuity with an electrical meter. ensure you have power in all positions of the switch.

 

Easy enough if you have a owners manual, sorry but I dont, I havent seen a relay for the AC or Heat system. I will check the switch, I I have a gut feeling it is the switch.

 

I just replaced my BMR last week.. my symptoms was that it only would work on HIGH.. and when I removed the BMR it was visually shot.. how did yours look?

 

At first only worked on high, and then it finally stopped all together. Took out to repplace and it was shot as well, the coils finally got hot enough and came apart. I believe now since it only works on low I have a switch problem.

 

then test the switch...there are fsm available on the internets