1996 LS400 fan blower problem
#1
Driver School Candidate
Thread Starter
1996 LS400 fan blower problem
I just bought a 1996 Ls400 and when I turn the AC on it blows high no matter what setting its on. Meaning, whether I select the low, medium, or high setting it still blows at high speed. I just change the temperature from time to time or just turn off the AC if it gets too cold. I would like my low, medium, high fan blower settings to all function. Anyone know the solution to this problem?
#7
Driver School Candidate
Thread Starter
Ok, no codes showed up during the diagnostics. But I did some searching on this site and found someone saying it is a blown resistor that is causing this problem, hopefully this is a cheap and easy fix.
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#8
Lexus Champion
beginning in 1995, LS400 no longer used a separate blower resistor, that is why I didn't mention it before - the blower resistor is now integrated into a very expensive part ($300+) called the blower motor control module p/n 87165-50020
I did find one used on ebay, and only one, so better grab it before it's gone, that stands a very good chance of being the problem.
on the upside, it is a fairly easy part to install
I did find one used on ebay, and only one, so better grab it before it's gone, that stands a very good chance of being the problem.
on the upside, it is a fairly easy part to install
#9
Driver School Candidate
Thread Starter
beginning in 1995, LS400 no longer used a separate blower resistor, that is why I didn't mention it before - the blower resistor is now integrated into a very expensive part ($300+) called the blower motor control module p/n 87165-50020
I did find one used on ebay, and only one, so better grab it before it's gone, that stands a very good chance of being the problem.
on the upside, it is a fairly easy part to install
I did find one used on ebay, and only one, so better grab it before it's gone, that stands a very good chance of being the problem.
on the upside, it is a fairly easy part to install
#10
Lexus Champion
just study that photo on ebay and memorize exactly what it looks like or else print a photo out, and then find it! - it's somewhere under there!
#11
Driver School Candidate
Thread Starter
somewhere on the side of the evaporator box (the big thing with A/C lines going in, near the blower motor), if my memory serves - - if not there then in the vicinity of blower motor
just study that photo on ebay and memorize exactly what it looks like or else print a photo out, and then find it! - it's somewhere under there!
just study that photo on ebay and memorize exactly what it looks like or else print a photo out, and then find it! - it's somewhere under there!
#12
Lexus Champion
No. the p/n 87165-50020 only fits 95-97 models
the 98 and newer models use a very different part that has roughly the same function, but is completely incompatible, both electrically and physically
the 98 and newer models use a very different part that has roughly the same function, but is completely incompatible, both electrically and physically
#13
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Hi, sorry to jump in your thread but I have a similar problem w/my 92 ls400. Blower on high no way of turning blower off, compressor went out so mreplaced w/used one from 93 then recharged blower still on high no light on ac control and display(never had since got car) but ac now cold how to repair or replace ac/control, only way to stop blower is to remove heater relay under hood, but if ac is not cold then it blows hot air, any suggestion,help,tks lmk.
#14
Lexus Champion
Hi, sorry to jump in your thread but I have a similar problem w/my 92 ls400. Blower on high no way of turning blower off, compressor went out so mreplaced w/used one from 93 then recharged blower still on high no light on ac control and display(never had since got car) but ac now cold how to repair or replace ac/control, only way to stop blower is to remove heater relay under hood, but if ac is not cold then it blows hot air, any suggestion,help,tks lmk.
not saying that is definitely the culprit, but I would say that it is a high probability.
#15
Driver School Candidate
Thread Starter
Ok, I just purchased the module from your link you posted. I will need your advice on how to take out the glove compartment etc to install this module