AC/Heater fan help

Hi guys and gals, I have a 2013 and am having issues with may AC/Heater fan. Basically the issue is the fan wont turn on unless its on HI. It does not matter if it is on AC or heat or any other setting. But when its on HI it works fine.

My two thoughts are a bad fuse or a bad relay. My question is which is the correct fuse and relay for the AC fan?

I looked in the fuse box and checked a few but did not see one labeled fan.

Thoughts? Thank you.

 

https://m.youtube.com/watch?v=YiEfuKIGz6k

 

Sounds like the blower motor resistor.
I’m about 90% that’s the issue.
The blower bypasses the resistor in Hi.
You can find out for sure in this link.
https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042158

 

Yep check the connector also

 

Likely the blower motor resistor. Also if/when you replace the resistor replace the pigtail with the aftermarket one with thicker wires....use as much of the thicker wire as you can.

 

You guys nailed it, it was the resistor 100%. I have a new one on order and should get it tomorrow.

Also the back bolt is a huge PITA to get out, lol.

Thank you for the help!!

 

No problem.
Good to hear you got it figured out.

 

So thinking this is my Huckleberry? Fan only works on hi (2015).

 

That will probably work fine.
But that isn’t the updated one.
I’ve not seen the updated resistor and connector sold as a package.
So you may have to buy them separately. That is if you want the updated parts?

The ones you linked will probably be fine though.


The updated parts are in the link below.
https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042158

 

Thanks for the help, picked up parts from the dealer. From the videos it looks like we’re on the third or fourth version of harness/resistor combination so splicing the harness is the slowest part of the task. Replaced cabin air filter while I was in there…shame on me.

 

Splicing the harness do u need to solder? My temp from ac fan is 35f but I cannot get fastest speed from fan?