LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

No more overheating... A/C Fan works

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Old 08-03-03, 03:37 PM
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Lexozz
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Default No more overheating... A/C Fan works

I finally fixed the problem. I made numerous requests to find out where the A/C thermal switch is located. It's been over a year. My thermal sensor is good. The problem was a blown fuse under the driver's headlight. Thanks to my Lex partner in crime "nextlevelcoupe", he had a similar problem, but he had to change his thermal sensor which is located at the bottom of the radiator on the driver's side. I never knew there was an extra fuse box located there until we started discussing the situation, then something hit me. I started tearing sh$%t apart and found it.
Old 08-03-03, 03:42 PM
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Lexozz
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Check these pics out, location of the fuses. Air Sus (red) far left, RDI fan no 1 and RDI fan no 2.

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Old 08-03-03, 03:48 PM
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Lexozz
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Fuse cover. RDI Fan No.2 was blown.

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Last edited by Lexozz; 08-03-03 at 03:51 PM.
Old 08-03-03, 03:56 PM
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Lexozz
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A/C Fan

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Old 08-03-03, 04:02 PM
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Lexozz
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Last one. OEM fuse part# 90987-03001, and replacement aftermarket fuse from AutoZone $19.99
Attached Thumbnails No more overheating...  A/C Fan works-ac-fan-fuse.jpg  
Old 08-03-03, 04:05 PM
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nextlevelcoupe
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invaluable info!!
Old 02-11-14, 06:41 AM
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MattLS400
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This is some invaluable info. I guess this is a good way to verify whether or not my Hydraullic Fan is stock or whether or not It came with an Electric Fan and the previous owner just swapped an entire Hydro Fan.

96Celsior (UCF21) (1UZ-FE)

Last edited by MattLS400; 02-11-14 at 06:42 AM. Reason: Model/Year
Old 06-05-20, 11:52 PM
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JohnAndic
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Could this be why I never seen my AC fan Turn on in my 97? I don't think this car ever had AIR SUSPENSION
Old 06-06-20, 02:58 AM
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Sin1UZFE
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Originally Posted by JohnAndic

Could this be why I never seen my AC fan Turn on in my 97? I don't think this car ever had AIR SUSPENSION
my 99 didn't have any at all. Replaced both those two on right and now turns on
Old 06-06-20, 08:09 AM
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JohnAndic
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Originally Posted by Sin1UZFE
my 99 didn't have any at all. Replaced both those two on right and now turns on
Is there supposed to be only 2 fuses or whatever they are in there? Never seen a picture of it with 4 modules in there.....
Old 06-06-20, 09:22 AM
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Sin1UZFE
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Originally Posted by JohnAndic
Is there supposed to be only 2 fuses or whatever they are in there? Never seen a picture of it with 4 modules in there.....
I've seen one with the air suspension in there
Old 06-06-20, 06:29 PM
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From what I can tell, some of the older cars 90-94 had the FAN NO3 Module to run an older type of fan, could be also because they have 2 fans in the front there. Then if you have AIRSUS you'd have that module also. In mine there are no wires going to either the AIRSUS or the FAN NO3. Probably most if not all 97 won't have that FAN NO 3 module.
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