@@johnnyjimj yea I ended up replacing the motor on both fans and haven’t had a problem since. I had to take that route, because no one had the right parts to just swap the entire housing.
@@imAgentR Funny you replaced the motor, I did too, except that I adapted the motor and fan from a spare condenser fan assembly. That fan is a wee bit smaller than the rad fan and it took a bit of ingenuity to fit it into the rad fan shroud, but it worked great in the end as I was stuck for 3 hours yesterday in bumper to bumper traffic to get closer to the solar eclipse.
Hi guys - what if shorting the fuse (like you did at @3.10) works and makes the fan start working? Does that mean I have a bad relay that needs replacing? Thanks!
I know it's 9 mo ago, but in case in helps someone: yes that's possible, but it may also depend on the results of other troubleshooting steps. For clarification, you're referring to shorting the contacts of the _relay_ (port) rather than the _fuse_ . Your relay may be OK while the interior 10A fuse that he mentioned (under the steering column) may be bad, which would prevent power reaching the fan relay(s), so check that fuse. He also mentioned swapping out the horn relay in the fan position if you know your horn works, which is a decent diagnostic, so try that. However, your fans are controlled by temp sensors, meaning that when they're working as intended they'll only kick on (via the relay) at a certain temperature to begin the cooling process. If you want to test the relay itself and you have a continuity tester of some kind: to the two metal tabs on the relay which *do not* correspond to the contacts you shorted in the fuse bay, _carefully_ apply 12V (spare wire, 16AWG or thicker, alligator clips.. use what you have to hand but also use your head - just don't let the live leads touch...). You should hear/feel a click, which is the relay closing the circuit on the two metal tabs which *do* correspond to the contacts you shorted in the fuse bay. Now check those two contacts for continuity while still applying 12V to the first two. For the relays shown in this video, the 12V is applied to the two *silver* metal tabs, and you're looking for continuity across the two *copper* tabs. Think of a relay like a draw bridge, if the cars trying to cross the bridge is the electricity trying to reach your fan. When you apply 12V to the first two tabs on the relay, that lets the draw bridge down so the cars can cross - electricity can now flow to your fan. 👍
FYI if you still have the car yes they do. I live in Canada where it never gets hot and my 2004 survived apparently years with a dead rad fan probably because the AC fan was enough to keep the engine from overheating. When I replaced the rad fan after I noticed it was seized they both came on together. The difference is they shut off much quicker than with just one fan going.
I have a question, My granddaughter’s civic has a problem with the fans turning off every minute or so for about 6-8 seconds then turning back on. I replaced the fan and the temp sensor 4 months ago, it has been fine but this week it’s going on and off Help !
like your video very basic explanation ...plain and simple to get to get right to the problem
Thanks for the help!
Very helpful, thanks sir
Thanks but if all of does fuses are good and the fans are not working.
what else I can take look?
Thanks hope you can help me out!
This is helpful thanks. My fans are still running, but started making a rattling noise lately and trying to figure out what that is.
Impending failure for sure. My rad fan was seized and I only noticed because the fan blade had come loose.
@@johnnyjimj yea I ended up replacing the motor on both fans and haven’t had a problem since. I had to take that route, because no one had the right parts to just swap the entire housing.
@@imAgentR Funny you replaced the motor, I did too, except that I adapted the motor and fan from a spare condenser fan assembly. That fan is a wee bit smaller than the rad fan and it took a bit of ingenuity to fit it into the rad fan shroud, but it worked great in the end as I was stuck for 3 hours yesterday in bumper to bumper traffic to get closer to the solar eclipse.
@@johnnyjimj awesome! Yes the older they get the harder it is to source parts like that on the hybrid especially. Glad the fitment worked out!
my civic hybrid 2003 12v battery not recharging can you help me if its a fuse problem
My 03 civic has three relays( I believe) inside the car behind the glove box, do you know what those are for
Thanks
Hi guys - what if shorting the fuse (like you did at @3.10) works and makes the fan start working? Does that mean I have a bad relay that needs replacing? Thanks!
I know it's 9 mo ago, but in case in helps someone: yes that's possible, but it may also depend on the results of other troubleshooting steps.
For clarification, you're referring to shorting the contacts of the _relay_ (port) rather than the _fuse_ .
Your relay may be OK while the interior 10A fuse that he mentioned (under the steering column) may be bad, which would prevent power reaching the fan relay(s), so check that fuse.
He also mentioned swapping out the horn relay in the fan position if you know your horn works, which is a decent diagnostic, so try that.
However, your fans are controlled by temp sensors, meaning that when they're working as intended they'll only kick on (via the relay) at a certain temperature to begin the cooling process.
If you want to test the relay itself and you have a continuity tester of some kind: to the two metal tabs on the relay which *do not* correspond to the contacts you shorted in the fuse bay, _carefully_ apply 12V (spare wire, 16AWG or thicker, alligator clips.. use what you have to hand but also use your head - just don't let the live leads touch...). You should hear/feel a click, which is the relay closing the circuit on the two metal tabs which *do* correspond to the contacts you shorted in the fuse bay. Now check those two contacts for continuity while still applying 12V to the first two.
For the relays shown in this video, the 12V is applied to the two *silver* metal tabs, and you're looking for continuity across the two *copper* tabs.
Think of a relay like a draw bridge, if the cars trying to cross the bridge is the electricity trying to reach your fan. When you apply 12V to the first two tabs on the relay, that lets the draw bridge down so the cars can cross - electricity can now flow to your fan. 👍
Will civic 2003 AC compressor run without refrigerant and do the compressor and condenser fan runs and stops together at same time?
FYI if you still have the car yes they do. I live in Canada where it never gets hot and my 2004 survived apparently years with a dead rad fan probably because the AC fan was enough to keep the engine from overheating. When I replaced the rad fan after I noticed it was seized they both came on together. The difference is they shut off much quicker than with just one fan going.
Very informative!!! Thank you so much for this video
I have a question, My granddaughter’s civic has a problem with the fans turning off every minute or so for about 6-8 seconds then turning back on. I replaced the fan and the temp sensor 4 months ago, it has been fine but this week it’s going on and off
Help !
Check the radiator switch
@@migueltute352 do you mean the sensor by the thermostat? ( I changed it already) Not sure what the radiator switch is (relay? Or a literal switch)
The switch is connected to the radiator make sure you drain the radiator when you replace it
What's the name of the interior fuse, my 14 says remote control mirrors
A tip: watch movies at instaflixxer. I've been using it for watching all kinds of movies lately.
@Raiden Patrick definitely, I've been using InstaFlixxer for since december myself :D
@Raiden Patrick definitely, I have been using InstaFlixxer for years myself :)
I can turn it by hand and all the fuses are fine