GrantReid

1992 SC400

Is there any part of the electrical system that would cause the turn signal to affect the heater blower/

When the heater blower is running, if I switch on the right turn indicator the fan cuts to low, when I switch it off,the fan returns to normal speed. Left signal indicator has no affect on it. Running all electrical at the same time does not change anything.

I might think it is a short somewhere, but a short is usually an all or nothing problem. This does not go from full fan to no fan, it goes from full to minimum.

My blower, by the way, only runs at maximum. The only time I get minimum is when the right signal indicator is on. I don't believe these two problems are of the same cause, but I could be wrong.

(My heater resistor and ??? forget what it is called, but both tested good with my multimeter and I had the climate control rebuilt. I still have max air flow only)

oldManTan

change the blower motor resistor considering you only have max blower right now, that would be the first thing i would do.

GrantReid

I kind of agree. My concern with it is that my resistor tested good when I pulled it. Can it still be bad even though the resistance with a multimeter shows it within normal range?

I don't want to waist 80 bucks if it isn't needed.

oldManTan

wait what year is your car?

GrantReid

It is a 1992 SC400.