A/C-Heater Fan Speed-1992 Land Cruiser

[George in SC]

Hi,
The fan for my 1992 Land Cruiser Air Conditioner/Heater has been missing the highest speed for several years. Recently it lost the second highest speed.

Does anybody know why this is? Just old age? A short some place? Is it a fuse or the switch itself? I am guessing it is the switch or a rheostat attached to the switch.

I assume the rheostat is attached to the back of the visible switch. If I am wrong, please correct me.

Thanks,
George

[titleist]

does it have a blower resistor?
i know with camrys it was fairly common for something like this to happen, but they would lose the lower speeds first.

[fourwd1]

It's a common problem on the pickup trucks and 4Runners as well.
They have a module which contains resistors for each of the lower speeds, and when a resistor goes bad you loose a fan speed.
They are typically located in the ductwork on the pass side. Look for a connector with 3-4 wires going into a duct. Usually 2 screws hold it in.

[David*All-Trac]

the same resistor have been used in several models of Toyota. Asks the dealer to give you all the models with the same part number as your LC's resistor.

I would be willing to bet that the pick-up and 4Runner have the same resistance.

You could therefore find in a scrap yard near you or a jobber resistor at a reduced price

[fourwd1]

The module is actually not that much from the dealer, and dealers like partznet.com sell online and better prices.

[yoshi74]

So when the resister starts to go, does it come and go randomly or is it an all or nothing. Mine sometimes works, sometimes i freeze....

[fourwd1]

Usually one one of the resistors opens, it's for good, not intermittent.
But it is possible.

[yoshi74]

Is it possible that the switch (in the dashboard) for the speeds went. Do they go very often? Its cold here in the Alberta

I also don't know that i am looking at the right thing. On the duct work there is a circuit board attached. That isn't the resistor is it?

[fourwd1]

It could be the switch, but the resistor module is usually the problem.

Here's a typical one removed.

[fourwd1]

From an 80's Toy