Heater will not work

when I saw this question last night, I thought to myself 130' seems awfully low!

Correct Operating Coolant Temp

Toyota Nation Forum https://www.toyotanation.com > threads > correct-oper...
Jan 26, 2021 - It should be around 185-190F. Buying OEM, it usually comes with a gasket. You'll need to drain the coolant, so it's a good time for a flush.

I think you have air in the cooling system, perhaps even a stuck thermostat, or a heater valve that isn't opening. Start with burping all the air out.

https://www.fixya.com/cars/r29872074-vehicle_cooling_system_no_heat

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i would think the vent direction control isn't moving the heater box vent , stuck in the open position so only hot air from the engine ,strip out the control panel a check that the direction control cable is connected both ends ,

it sounds like a " blend air door " inside the heater box is either broken or the servo that control's it is not working unfortunately to get to it you need to take the dash out to get the heater box out

As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

2000 Toyota Avalon: No heat on Passenger Side?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html

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No heat on Oldsmobile Silhouette?

http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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Hot air on the driver's side vents only?

http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html

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Temperature gauge does not move and no heat when heater is ON?

http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold?

http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold?

http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html
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Ford F150 Ac only blows through defrost vents?

http://technoanswers.blogspot.com/2012/01/forf-f150-ac-only-blows-through-defrost.html

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Dodge A/C come out of defrost vents only?

http://technoanswers.blogspot.com/2012/01/dodge-ac-come-out-of-defrost-vents-only.html

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Ac vacuum line on dodge cummins?

http://technoanswers.blogspot.com/2012/01/ac-vacuum-line-on-dodge-cummins.html

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Ford ranger AC blows cold through defrost vents instead on cabin vents?

http://technoanswers.blogspot.com/2012/01/ford-ranger-ac-blows-cold-through.html

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2005 Chrysler PT Cruiser: A/C Blows Warm?

http://whoisbyme.blogspot.in/2012/06/2005-chrysler-p8t-cruiser-ac-blows-warm.html

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2009 Mercury Grand Marquis: A/C blows Cold From Defrost Vent Only?

http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html

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AC not blowing through Vents on 2007 Chevy Trailblazer?

http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html

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Passenger side temperature is warm air out of dash vents?

http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html

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These will help.

Thanks.

this is going to sound silly, but check you coolant level... if the level is ok, you will have to check to see that the blend door is operation properly. the blend door is located inside the box on the passenger side of the dash. also, check the switch that lets you go from hot to cold....

Pull the rear bulbs out an inspect them for dark marks on the glass or abnormalities in the filament.
A bulb that works but is on the verge of failing will trigger the indicator on the dash as well.
Failing that, the lamp failure module is very common to fail, triggering the light as well. You can pry the box lid off and usually see burn marks on the circuit board when this happens.
The lamp failure module is located behind the left rear tire area in the trunk.

See toyota technical service bulliten AC005-99.
This is a expensive repair but if you just unplug the the air inlet servo motor(behind the glove box )
the air should start to work but without fresh/recirc control.

I'd look for a direct short, possibly a bare wire that has rubbed insulation off.

Start at the lamp socket first and any switch that might be located at the dome light itself, see if you see anything.

Next I'd check the door switches and then selector switch on the dash.

After that, it's going to be trracing wires, not an easy job.

At

over heating of the condenser(fans not working) or a blockage in the system maybe expansion valve

Try it again today, if no heat, move back & forth from cold to hot, and bang with hand, under dash on passenger side where heater duct work is and wait a few seconds. Blend/air door may be stuck.