Ok so one of my frined have a 91 integra LS and the fan motor only turns on when he puts it on 4 which is the one that sends alot of air but my question is Why doesnt the fan turn on in either 1 2 3 is it a relay or is the switch broken or is the motor gone?

 

It's the blower resistor. Around $30 at the dealer.

 

Ok well I don't mean to steal the thread but I have a simaliar problem.

My blower was working 1-2-3 but 4 didn't work, then one day none of them work. Same thing? Is there more than one resistor?

 

I would hot wire the motor and see if it works now (it will be on high), speed no. 4 may be a transistor instead of the resistor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93_teg_CT &raquo;</TD></TR><TR><TD CLASS="quote">Ok well I don't mean to steal the thread but I have a simaliar problem.

My blower was working 1-2-3 but 4 didn't work, then one day none of them work. Same thing? Is there more than one resistor?</TD></TR></TABLE>There's one resistor module with three resistors on it. The resistors are for blower settings 1,2,3. The 4th (full power) setting bypasses the resistors completely.

 

do you know where is that resistor located in the blower??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tigueremalo &raquo;</TD></TR><TR><TD CLASS="quote">do you know where is that resistor located in the blower??</TD></TR></TABLE>It's right on the blower behind the passenger knee panel. It's held in with two screws and has a 4-pin harness attached to it.

#7 in this pic: