Question about 1989 Toyota Pickup SR5

1 Answer

My heater fan switch in my operates only on high speed.

I have a 1989 Toyota pickup and I'm told I need to replace the rheostat. Is this a fairly simple project or do I need to tear apart the whole dashboard? I also need to replace the bulb that lights up the heater controls. Thanks.

Posted by on

  • Yotie1 Mar 03, 2009

    same problem only mine operates in low. resistor is good. How hard is it to replace the switch?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

The Blower resistor needs replaced.

Posted on Feb 27, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Ac/heater will only work on low when you move it to med or high it shuts off

need to check switch,resistor and fan ---ur switch might have resistor built in it would need to be tested for continuity for the other speeds --if your truck [didnt specify which ] has a separate resistor it should be attached to the heater fan motor housing again resistor needs to be tested -also test ur fan for any resistance or overheating

Apr 10, 2014 | 1993 Toyota Pickup

1 Answer

Interior fan does not funtion

if it runs at high speeds it is most likely the heater resister one way to check this is first check fuses if all are good unplug fan motor and using a nine volt battery and jumper leeds jump the fan if it operates your resister is bad but first take a screw driver handle and tap on the motor if fan starts the motor is going out

Mar 25, 2012 | 1989 Toyota Land Cruiser

1 Answer

Fan speed will only work on high,is the switch the problem

The switch is held on by 2 clip, on on the "high" side, one on the "low" side. If the low side came disconnected, it would only contact at "high". Fairly easy fix (tape or glue). Doubtful that the switch needs to be replaced. It is more likely the variable resistor, or rheostat, which allows less than full voltage to the fan motor. This would allow only full or no voltage to the motor with no "in-between".

Dec 20, 2010 | 1995 Geo Tracker

1 Answer

The low/med/high fan switch on my 1985 Toyota pickup is no longer working, How do I replace the heater fan blower switch?

Don't go there just yet ! Most heater motor speed problems relate to the heater resistor ! It's located in the ducting close to the motor assy and usually has 4/5 wires on to it and a 2 screw fixing. This componant must be cooled (hence air duct location) and is solely responsible for motor speeds ! You can check motor fan by test lamp/meter ! Good Luck

Dec 13, 2010 | 1985 Toyota Pickup

1 Answer

Two sportages both have fans that only work in the high poisition??

the heater fan has a rheostat and that controls the fan speed it needs to be replaced

Nov 30, 2010 | 2001 Kia Sportage

1 Answer

I have a 1989 Toyota 2wd pickup. I have replaced the resistor and now all four fans speeds work like they should. But now, sometimes fan motor just stops. If I turn the swith off then on it will start...

you need to catch it when it quits running and leave the switch where it is and check the blower motor for power in wire with a test light,then you'll know if you have power its the motor,if no power then the switch.

Dec 29, 2009 | 1989 Toyota Pickup SR5

2 Answers

Replacing heater blower motor

this is not a problem with thw switch or motor. There is a resistor that is mounted inside the dash on the pasenger side that controls the speed of the blwer..these have a tendency to burn up after 10 years or so... replace the resistor, and you will be fine!

Dec 23, 2008 | 1984 Toyota Pickup Deluxe

Not finding what you are looking for?
Cars & Trucks Logo

520 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

77186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8737 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides