DIY. Alternator Fuse.
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Joined: Jun 2009
Posts: 63
Likes: 2
From: BC
DIY. Alternator Fuse.
Electrical problems, no dash lights, no power, dead alternator, etc.
Replaced the alternator and new battery, and your car still doesn't work?
It's this.
Tools needed:
8mm Socket
10mm Socket
12mm Socket
13mm Socket
Small Flathead screwdriver.
150A Fuseable link from Lexus. $23.41 Canada price.
- Remove the positive terminal from the battery. 10mm
- Take off the cover on the fuse box under the hood with a flathead
- Take off the 2 10mm bolts holding the fuse block.
- Use your fuse box cover as a bucket to hold your nuts / tools.
- The Fuse block has 2 sections. Use the small flathead to pry the 2 tabs and seperate. Be careful, they're fragile.
- Pull the smaller section up. Remove the bolts as pictured with the right sized sockets as listed.
- Take it out. Replace.
I have ugly fingers.
Replaced the alternator and new battery, and your car still doesn't work?
It's this.
Tools needed:
8mm Socket
10mm Socket
12mm Socket
13mm Socket
Small Flathead screwdriver.
150A Fuseable link from Lexus. $23.41 Canada price.
- Remove the positive terminal from the battery. 10mm
- Take off the cover on the fuse box under the hood with a flathead
- Take off the 2 10mm bolts holding the fuse block.
- Use your fuse box cover as a bucket to hold your nuts / tools.
- The Fuse block has 2 sections. Use the small flathead to pry the 2 tabs and seperate. Be careful, they're fragile.
- Pull the smaller section up. Remove the bolts as pictured with the right sized sockets as listed.
- Take it out. Replace.
I have ugly fingers.
Driver School Candidate
Joined: Nov 2010
Posts: 4
Likes: 0
From: al
I have a RX 350 with the alternator fuse blown. I can't seem to be able to get it out or take the box apart. It is buried deep in the box. Can you give more detail as to how to take it apart? Thanks
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Rookie
Joined: Jun 2009
Posts: 63
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From: BC
The Panel should be held on by some 10mm bolts. After you remove those, there are clips holding the 2 sectional panels together. Take a flathead to it, and the panel itself should be free to move around. After that, the fuseable link is held on by a 12/10mm.
This was on a 95 SC400. So I don't know if it'll be the same for you.
This was on a 95 SC400. So I don't know if it'll be the same for you.
- Remove the positive terminal from the battery. 10mm
- Take off the cover on the fuse box under the hood with a flathead
- Take off the 2 10mm bolts holding the fuse block.
- Use your fuse box cover as a bucket to hold your nuts / tools.
- The Fuse block has 2 sections. Use the small flathead to pry the 2 tabs and seperate. Be careful, they're fragile.
- Pull the smaller section up. Remove the bolts as pictured with the right sized sockets as listed.
- Take it out. Replace.
Driver School Candidate
Joined: Jun 2013
Posts: 6
Likes: 0
From: CA
Just know the whole plastic piece comes off so you can get to the bolts. I unbolted all the top screws on top. but now realize I may have been able to pry just the front part of the front plastic case off. You have to know the bolts to the 150 amp fuse is not just on the front part, but there is another bolt on the back, so you can get to it after you lift the front part of the plastic case.
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Joined: Sep 2003
Posts: 2
Likes: 1
From: California
Fusible link part # correction
Hi all,
Thanks for all the info on this. Couldn't figure out why my electrical systems went down and also...explain why my battery kept draining.
I at some point blew the 120a fusible link and thus I had to keep charging my battery/jumping to get the car to start.
This is probably why driving the car around didn't charge the battery.
Took me a while to find this helpful post and wanted to share some info:
Thanks for all the info on this. Couldn't figure out why my electrical systems went down and also...explain why my battery kept draining.
I at some point blew the 120a fusible link and thus I had to keep charging my battery/jumping to get the car to start.
This is probably why driving the car around didn't charge the battery.
Took me a while to find this helpful post and wanted to share some info:
The Lexus part number provided: 90982-08272
Is for a 150 amp fusible link - called Lexus of Oakland, CA and that's what they told me - the ls400 is a 120 amp fuse though
I told them I had a 1990 LS400 and needed that alternator fusible link and they said the part number was:
90982-08254 for the 120 amp fuse - they checked and that was the part number for the 90 ls400
I asked if there was an equivalent Toyota part number (usually the parts are the same between Lexus/Toyota but the part numbers may be different)
she said it might be the same, call Toyota and ask.
Toyota of Berkeley quoted me $17 for the same part and they'd have to order it - Lexus quoted me $14 for the part and they had it in stock
so in this rare case Lexus was cheaper - maybe the fuse has been sitting there since 1990.
I checked all my regular blade fuses, nothing blown, and those three round things that you insert a pin into to reset - breakers i think...nothing.
Upon super close inspection the stupid 120a fusible link was blown.
I'll have to pick up the fusible link, take the fusebox apart to install it and see what happens.
Unfortunately my car is at my friends so I'll have bring my tools and service manuals over.
I'll let you guys know how it goes.
Is for a 150 amp fusible link - called Lexus of Oakland, CA and that's what they told me - the ls400 is a 120 amp fuse though
I told them I had a 1990 LS400 and needed that alternator fusible link and they said the part number was:
90982-08254 for the 120 amp fuse - they checked and that was the part number for the 90 ls400
I asked if there was an equivalent Toyota part number (usually the parts are the same between Lexus/Toyota but the part numbers may be different)
she said it might be the same, call Toyota and ask.
Toyota of Berkeley quoted me $17 for the same part and they'd have to order it - Lexus quoted me $14 for the part and they had it in stock
so in this rare case Lexus was cheaper - maybe the fuse has been sitting there since 1990.
I checked all my regular blade fuses, nothing blown, and those three round things that you insert a pin into to reset - breakers i think...nothing.
Upon super close inspection the stupid 120a fusible link was blown.
I'll have to pick up the fusible link, take the fusebox apart to install it and see what happens.
Unfortunately my car is at my friends so I'll have bring my tools and service manuals over.
I'll let you guys know how it goes.
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Driver School Candidate
Joined: Mar 2018
Posts: 17
Likes: 1
From: CO
2005 ES 330
Checking the fuses first has saved me A LOT of money. My speakers went out and I only had to change the fuse. Other people said you had to replace some woven cable in the trunk, huge pain. I read the user manual and the speakers were listed under the fuses.
Love saving money through a little research.
Checking the fuses first has saved me A LOT of money. My speakers went out and I only had to change the fuse. Other people said you had to replace some woven cable in the trunk, huge pain. I read the user manual and the speakers were listed under the fuses.
Love saving money through a little research.
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