interior blower switch

doulou · Post by **doulou** » Sun Sep 16, 2007 10:31

My blower only works on two speeds, I or IIII. Both speeds II & III operate but on the lowest fan speed.

Any Idea fella's

Paul

robertverhey · Post by **robertverhey** » Sun Sep 16, 2007 12:52

Mine was the same. The rheostat was at fault.

Take out the "secret panel" at the back of the glovebox and you can access it. Some of the connecter leads were a bit iffy on mine from memory or on the wires leading to it). Now I have 1,2,3,and 4 speed fan.

Good luck, let me know how you get on

Robert

Markexel · Post by **Markexel** » Sun Sep 16, 2007 13:24

What years the car? ,earlier models only had 2 speeds like mine an 85 model

Model

doulou · Post by **doulou** » Sun Sep 16, 2007 19:18

Thanks Guy's, mines a 1990 Never knew there was a panel behind the glovebox!! - Will let you know how it works out

Many thanks Paul

Steve C · Post by **Steve C** » Mon Sep 17, 2007 10:37

It's almost certainly the resistor pack which is mounted in the blower housing. This failed on my car and is a common failure on the donor toyota.

It's pretty tricky to get at, mounted near the top of the blower housing behind the passenger side dash, but once you get it out, you will see three coils of wire, the thinnest (slowest speed) will most likely have corroded to the point of fracturing.

nigelrobertson · Post by **nigelrobertson** » Fri Sep 21, 2007 07:51

Same problem appeared on my Excel-heater fan works on position 1 and 4 only.

The car is an '89 build with aircon.
Check the service manual-section PC,page 11 and there it is-fan speed resistor block.Get to toyota and order the part 87138-24011.Due Monday.
So today I get a chance to have a look-see.Remove glovebox panel-no sign of the thing

The blower unit mounts directly to the evaporator-so no ducting to the heater matrix as in non A/C models.
The service manual gives a good idea what the resistor block looks like,but not in location-any clues much appreciated

Steve C · Post by **Steve C** » Fri Sep 21, 2007 12:24

It's a case of "head in the footwell" ... look for a clump of wires leading up the rear of the heater unit that don't lead to the fan motor. These wires end up higher. You will eventually find the resistor block. pull the connector from it and then there is only one (I think) screw holding the resistor block into the ducting. You probably want one of those screwdriver ratchets that look like a small 1/4 drive wrench.

Oh, and get someone lined up to give you a neck massage afterwards, you'll need it

nigelrobertson · Post by **nigelrobertson** » Fri Sep 21, 2007 13:37

yup,been there-seat back,legs over headrest-I also need someone to pull me back out!
I'll have another go...

doulou · Post by **doulou** » Sun Sep 23, 2007 11:49

All done fella's - It was a coneection block just behind the glove box panel.

Thanks for all the advice

Paul

nigelrobertson · Post by **nigelrobertson** » Tue Sep 25, 2007 12:49

Went to Toyota to pick up the resistor pack-the part number previously mentioned does not fit-has 2 screw location plus stud plus short cable-nothing like the original!
According to the parts guy Toyota modified the resistor pack(due to failure I'd imagine) and is the only one available for Australia.

Anyone know the part number so I can try in the UK?
Its a 1989 model-so '86-on aircon version.
(part has single screw location)

robertverhey · Post by **robertverhey** » Tue Sep 25, 2007 12:55

Now that's interesting, I took one off a 1984 Supra in Sydney wrecker and found that it doesn't fit. Your Toyota man knows his stuff

The part number, I think, is 87138-24010

You can just make it out in the photo on page 3-8 of the Haynes (British)Supra Manual

nigelrobertson · Post by **nigelrobertson** » Tue Sep 25, 2007 13:15

Thanks Robert-Thats the number for the later version right?-I know yours is an '85

Looks like I should get a Supra manual at the same time!
Pity the Excel dash doesn't strip down like the Toyota donor does

robertverhey · Post by **robertverhey** » Tue Sep 25, 2007 13:17

Robert Glacier Blue '87 SE

nigelrobertson · Post by **nigelrobertson** » Tue Sep 25, 2007 13:25

oops!
my bad

lambert.john · Post by **lambert.john** » Sat May 23, 2009 21:49

I am suffering from a 2-speed, only, interior blower at the moment. I replaced the rheostat ('orrible job) to no good effect. I suspect the connector behind the glovebox is iffy but cannot trace this component in the workshop manual. Has anyone replaced this? And, if so, with what?

The Lotus Grand Tourers

interior blower switch

interior blower switch

Re: interior blower switch