Blower Motor Resistor Location (1 Viewer)

[revoverland]

200 Series / 2008 LC / Salsa Red /

In desperate need of some guidance. Replaced a noisy blower motor/fan with a new aftermarket blower motor/fan. Went to test run it after install and got nothing. Plugged the old motor back in, and nothing. Tested for voltage at connection for motor, no voltage. Checked every fuse, relay, etc. All seem good. (Although it is difficult to check the 50A fuse in the fusible link).

Everything I have read says to check the blower motor resistor. However, I cant find this thing anywhere. Can anyone point me in the right direction? Will I be taking the glovebox apart to find this resistor?

Am I barking up the wrong tree? Could it be something else? What might I be missing?

Thanks

 

[grinchy]

I think it's a fuse. Will see if I can dig up a circuit for you to look at.

 

[grinchy]

No resistor in this circuit . . .

 

[grinchy]

Troubleshooting from FSM

 

[revoverland]

Wow! This looks like it will be helpful! Thanks so much, grinchy, much appreciated! I will look/work through the troubleshoot steps tonight.

One thing I did notice is that the (+) and (-) are backwards on the new motor? (Pics attached). Would that have caused something to blow or would that simply should have caused the fan to run in reverse?

 

[grinchy]

Those markings look to be consistent to me? The left plug side when plug is 'up' is '-' in both cases.

 

[lx200inAR]

Those markings look to be consistent to me? The left plug side when plug is 'up' is '-' in both cases.

That's what i thought at first, but the way the latch works, it looks like he had to flip the plug over to connect it. The left side of the plug with the latch referenced from top is (+) on the OE part and (-) on the aftermarket. I'd be concerned, not that you've blown the motor. But that the circuit inside the fan probably connects to ground or +12v to get "signal" for fan speed from that 3rd connector. So if they truly are reversed, you most likely jumped the wrong polarity to that signal pin that goes back to the AC amplifier assembly. Hopefully that's not the case, but i'd say it sounds possible. It's also possible it's just mislabeled on the fan housing.

 

[revoverland]

Grinchy, I tried the steps that were laid out in the troubleshoot guide, and I couldnt get any readings/voltage through any of the steps. From what I can tell the AC amplifier must be working. It sounds like it is working to engage different things (ie: the rear blower and ac). So I'm not sure where that leaves me. From what I can tell there is no fuse blown in the fusible link (pictured below) but it is hard to see through those plastic windows.

 

[lx200inAR]

If you don't have 12v on Pin 3 of the wiring harness (either referenced to the frame or Pin 1), then you must have blown the fuse. The fuse is the only thing between the battery and that pin.

If you are measuring correctly and don't have any voltage on Pin 2 (between 4.5-5.5v) then you probably also blew that output on the AC Amplifier. Ignition and HVAC must be turned on to see the voltage on Pin 2.

 

[grinchy]

I went and looked at my fuse box as well. It is not at all obvious how to remove the fusible link. I agree with @lx200inAR that at least the 50A fuse is blown.

 

[grinchy]

Brief youtube searching it looks like you have to unmount the fuse box and access the fusible link from below . . . this was from a couple non-200 series though.

 

[lx200inAR]

I found that video as well. I think this is the part, and the "what it fits" page included Tundras, Sequoias, and LC200s.

BLOCK ASSY, FUSIBLE LINK 826200C030 | Toyota Parts | PartSouq

Quality parts for Toyota auto with fast delivery here! For a fast search using the part number 826200C030 - BLOCK ASSY, FUSIBLE LINK

partsouq.com

 

[revoverland]

Wow, you guys have been incredibly helpful! I appreciate it so much. It is just encouraging to have some other people thinking through this with me, I have had the hardest time keeping my sanity haha I'll keep you posted!

 

[100kiwi]

You have lift the fuse box up then split it in half. Lots of tabs that long flat screwdrivers will help with.
Almost impossible to see if the link is blown untill removed.

 

[revoverland]

UPDATE: @grinchy , @lx200inAR , @100kiwi

New fusible link installed, problem solved! Took a bit of work, but got it with time.

Thanks so much for the help guys, really appreciate it!

 

[100kiwi]

UPDATE: @grinchy , @lx200inAR , @100kiwi

New fusible link installed, problem solved! Took a bit of work, but got it with time.

Thanks so much for the help guys, really appreciate it!

View attachment 2989771

View attachment 2989772

Good stuff, glad you got the problem figured out

 

[bloc]

This is good tech!

Would you mind posting the brand of the blower fan so others that run into this issue with the connector can have an easier time finding with a search?

 

[revoverland]

This is good tech!

Would you mind posting the brand of the blower fan so others that run into this issue with the connector can have an easier time finding with a search?

Wrong Fan sent by AA Ignition (company), purchased through Amazon. They sent me part# 871030C051 which is for many Toyota vehicles, but not a LC.

Ended up going OEM. Only cost me $20 more, should have just gone OEM in the first place. Toyota OEM is "Denso"

 

[milkyxj]

I have a loud fan due to replace, anyone have a deal on a replacement part (OEM)?

 

[revoverland]

I have a loud fan due to replace, anyone have a deal on a replacement part (OEM)?

I got mine from a local Toyota dealer for $138 plus tax. Most other dealers around me had it for close to $200. That was a week ago, in Washington State.