Cooling Fan inoperable - where to start

Joined
Feb 15, 2022
Messages
133
Location
Atlanta, GA
So I have a "dead" cooling fan and would like to get it working for the upcoming humid GA summer...I wanted to start with the inline fuse for this unit, but can someone confirm this is what the fuse looks like for the cooling fan? Its under dash, right of foot pedals and just next to the cooling fan box (85927 - 60040). If so, is this the best place to start to get it working? I quickly checked for continuity while in the white holder/case and was not seeing any...but also, how do you get this guy out? The metal fuse holder/clamps look like they are really locking this into place...do you need to bend the holder up? Assume this is switched power as well to this fuse? Before I start to 'pry' it out of the holder....

IMG_4513(1).JPG
 

Ming89FJ62

Pig farmer extraordinaire
GOLD Star
Joined
Jul 31, 2002
Messages
1,697
Location
Palatine, IL
get power to the fan first and make sure that it's working as @imyahucklbrry suggests. As far as the fuse is concerned you have it. Just pop it out of the holder and slide both ends off - they're friction fits. From there you can try bypassing the thermo switch above the exhaust manifold and see if it comes to life keeping in mind that the fan will not come on until you turn the key off. From there you'll need to source a replacement fan controller module which pop-up from time to time on the bay. Match part numbers since there are variations by model year
 
Joined
Sep 20, 2004
Messages
2,991
Location
here
Thats looks like a flasher or a relay, vs. fuse. Fuses are usually easily or possible to check/change.
 
Joined
Feb 15, 2022
Messages
133
Location
Atlanta, GA
get power to the fan first and make sure that it's working as @imyahucklbrry suggests. As far as the fuse is concerned you have it. Just pop it out of the holder and slide both ends off - they're friction fits. From there you can try bypassing the thermo switch above the exhaust manifold and see if it comes to life keeping in mind that the fan will not come on until you turn the key off. From there you'll need to source a replacement fan controller module which pop-up from time to time on the bay. Match part numbers since there are variations by model year
How would I go about bypassing the thermo switch? Thanks for your help.
 
Joined
Sep 20, 2004
Messages
2,991
Location
here
DUH, I was looking at the wrong part of pic, it supersized and I had to scroll around , yup, dat a fuse.
 

flx

Joined
Jan 4, 2019
Messages
601
Location
France
I assume any 5A 12v glass type fuse will work here?
Kind of yes but there are multiple length and diameter. Sometime you get a diameter not far and it "works" but the contact is not as good and you get gremlins.

Otherwise, you can order 99118-62905 from Toyota for an official Toyota fuse, it will even have the original red color coding.


99118-629** for the other fuse values BTW, with the original color (red/yellow/green/blue).
 
Joined
Feb 15, 2022
Messages
133
Location
Atlanta, GA
Kind of yes but there are multiple length and diameter. Sometime you get a diameter not far and it "works" but the contact is not as good and you get gremlins.

Otherwise, you can order 99118-62905 from Toyota for an official Toyota fuse, it will even have the original red color coding.


99118-629** for the other fuse values BTW, with the original color (red/yellow/green/blue).
You're kidding right? I mean aside from the potential sizing issues....a 12v 5A fuse will operate like a 12v 5A fuse...Just having a hard time believing that anything other than a Toyota will have insufficient contact points and cause gremlins. Please tell me if I am wrong here....
 

flx

Joined
Jan 4, 2019
Messages
601
Location
France
I frequently had various electrical small misfunctioning until I decided to replace all the fuses.
It's not that the other fuses are not working but removing all my old fuses I clearly saw that they all had slightly different sizes, sometime they were longer, sometime they had a smaller diameter, etc. They all clipped in the fuse box but you don't have an electrical contact as good if the diameter or length is not correct, at first it works and then in 20 years when you have oxydation on the contacts or the fuse is moving in the holder, and you get some electrical weirdness ¯\_(ツ)_/¯

Off course you can find non-Toyota fuses that are the right size, but I don't know how to reference/name them. Best option would be to compare them to your old one.
I used to buy glass fuses pack in gas station, it was like 5 or 6 fuses in a blister and they were from 3 or 4 different sizes. Back then standardization was not really thing.

Official Toyota fuses are between 1-1.5$.
 

Users who are viewing this thread

Top Bottom