Toyota heater motor fuses

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yaldou
Posts: 1
Joined: Mon May 20, 2013 8:52 pm

Intermittent cold air or warm air when not needed

Unread post by yaldou » Mon May 20, 2013 9:04 pm

Toyota Highlander 2005 AWD 6 cyl. During winter intermittent cold air, during summer intermittent warm air come up. Working solution turn the nub one direction or another. Driving over a bump brings the cold air also. What could be the cause?

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ProTech
Posts: 651
Joined: Wed Oct 17, 2012 10:08 am

Re: Intermittent cold air or warm air when not needed

Unread post by ProTech » Tue May 21, 2013 6:51 pm

You might want to start by checking the connections on the back of the HVAC control head. Also check connection on the temp actuator. Normally, a problem like this is usually a bad control head or actuator, but since it seems intermittent and acts up over bumps, it may be a wiring problem.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+

Dunlopdave08
Posts: 9
Joined: Mon Oct 06, 2014 1:54 pm

Toyota heater motor fuses

Unread post by Dunlopdave08 » Thu Nov 06, 2014 12:09 pm

Were are are all the fuses for the heater motor located on a 1985 Toyota Camry le ?

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carriedi
Posts: 2573
Joined: Wed Apr 10, 2013 12:42 pm

Re: heatet motor

Unread post by carriedi » Thu Nov 06, 2014 7:21 pm

according to the wiring diagram, you have a fusible link that goes to the heater circuit breaker. from there it goes to the heater relay.

you have a 'gauge' fuse 7.5A to the relay too.

you have two wires to the heater blower motor. one blue and red and the other just blue. with the key on turn the fan switch where it would normally on. check the blue and red wire for power. if you don't have power look at the relay, circuit breaker and fusible link. If it does have power check to see if you are getting the ground signal from the switch and blower resistor
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