No power anywhere after installing fan

Monachopsis

Member
So the dumbest thing just happened. I installed a new 12" spal fan and just cut the old connector and soldered it all back together. Went to start the car, fan came straight on...I was like sweet it works that means I did good! Wrong, I tried to crank the car and all power was lost and has not returned. Nothing works, lock windows, dash lights. I tried jumping it and no dice. What fuse did I blow?
 

Monachopsis

Member
There's a 100 amp main fuse in the fuse box that lives near the battery. I'd suggest starting there and working down via checking continuity.
Yea it looked fine, but I'm put and about so I'm going to get one and see, does the 30 amp power in footwell also handle main power or no?
 

underscore

Well-known member
Did you remove the battery to install the fan? Double check the terminals are tight, the grounds are all connected etc. If that's all good grab a copy of the schematics and a voltmeter and start working through the fuse diagrams. The 100A fuse can go bad but still look good. Note it's bolted into the fuse box from the bottom.
 

Monachopsis

Member
Did you remove the battery to install the fan? Double check the terminals are tight, the grounds are all connected etc. If that's all good grab a copy of the schematics and a voltmeter and start working through the fuse diagrams. The 100A fuse can go bad but still look good. Note it's bolted into the fuse box from the bottom.
Ok not the main nor the battery I'll see what I can do from here...fml why can't this car just work.
 

Monachopsis

Member
Update dash lights come on, but the second I move to the on position it all goes away, the light also like fade in slowly ignition fuse is ok
 

Monachopsis

Member
It works now, no idea how or why but it just started. Fixed my interior lights and clock too....what the fuck toyota XD anyways I do not want to plug the fan back in without some safety, would you guys recommend a fuse or should I make the fan a isolated system from the main car, ie it's own probe relay and power wire from the battery
 

Roreri

Active member
It works now, no idea how or why but it just started. Fixed my interior lights and clock too....what the fuck toyota XD anyways I do not want to plug the fan back in without some safety, would you guys recommend a fuse or should I make the fan a isolated system from the main car, ie it's own probe relay and power wire from the battery
Yeah keep it separate. Wire it direct, with the temp probe lashed down wherever you want, and then that way you’re not adding complications to the wiring system.
 
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