ok
so i disconnect the ECT themostat switch, and put a paper clip to "jump" the connection...
fan will not turn on!!

i checked all fuses in engine bay and inside the car (lower dash) and all fuses are intact!
car is a 00 civic ex y8 motor

FYI the harness im jumping is located on the thermostat housing...

 

Maybe the fan's broken .

 

wait whats the paper clip trick, ive never heard of it? i wanna try it cuz my fan has never gone on before and i wannna see if it works

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93ejay1 &raquo;</TD></TR><TR><TD CLASS="quote">wait whats the paper clip trick, ive never heard of it? i wanna try it cuz my fan has never gone on before and i wannna see if it works</TD></TR></TABLE>

Jump the CTS at the upper water neck with a paperclip or length of wire and the fan should turn on (with the car running...duh). It's like pulling codes from the harness at the passenger corner of your EG: it simply shortcuts the signal having to go through that particular "checkpoint" if you will .

 

Is your HVAC fan working? I blew the fuse for that and my car did the same thing. The radiator fan would not come on. It did after the fuse was replcaed. IIRC, it's a 15 amp fuse located in the driver side footwell fusebox.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Laserjock &raquo;</TD></TR><TR><TD CLASS="quote">Is your HVAC fan working? I blew the fuse for that and my car did the same thing. The radiator fan would not come on. It did after the fuse was replcaed. IIRC, it's a 15 amp fuse located in the driver side footwell fusebox.</TD></TR></TABLE>


well i see a "heater a/c relay" fuse and i checked that and its ok

 

UPDATE: fan was broken!! wtf
anyways i put in another fan that i tested to work (tested with battery) and with the harness jumped it does nothing


UPDATE AGAIN


******* A!
i was pulling the ECT switch, not the thermostat switch