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Toyota Highlander Heating Ventilation and Air Conditioning

107 messages,  Last post on Nov 16, 2009 at 5:13 PM

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What is this discussion about? Toyota Highlander, SUV

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#4 of 107 let's try this by kenlw Sep 19, 2007 (11:16 am)
I think the system may just be low on freon. You can have it checked, but since freon doesn't disappear on it's own it usually indicates a leak somewhere; which depending on where that leak is can be expensive. Replies to this message: alleycat7 (Sep 20, 2007 4:19 pm)
#5 of 107 Re: let's try this [kenlw] by alleycat7 Sep 20, 2007 (4:19 pm)
Replying to: kenlw (Sep 19, 2007 11:16 am) I took the car to the dealer today and they said they readjusted the control knob. Sounds like of "iffy" to me but the AC does work now so we'll see. If it goes off again it'll go back right away. My warranty expires in December so i want this stuff fixed before that. Thank you for your reply and help
#6 of 107 a/c control problems by ggartner Sep 29, 2007 (1:56 pm)
I have 2002 Highlander. Had my evaporator replaced today. When they put the dash back together, the compressor will only come on when control is on Defrost. Any ideas? Thanks, Gary
#8 of 107 Highlander manual heater swap to Auto climate control help by slimes Dec 31, 2006 (12:07 am)
Hi,   I have a 2003 v6 Highlander 4WD. It has the manual 3 knob controls for the heater. I am looking to switch it to an Automatic Climate control. Can this be possible? If so what do I need to get this done? Someone told me that the wiring is different. Replies to this message: wconnors1 (Mar 30, 2007 10:13 am)
#9 of 107 Re: Highlander manual heater swap to Auto climate control help [slimes] by wconnors1 Mar 30, 2007 (10:13 am)
Replying to: slimes (Dec 31, 2006 12:07 am) Hi Slimes,   Was checking the forum and noticed your question. I know it was Dec 31 when you posted, but have you done anything with this. I too, was considering changing to Automatic Climate Control in my 01 Highlander. Were you able to accomplish this or is the wiring indeed different? I already have a replacement panel. Thanks,   wconnors
#10 of 107 Me too by donivanf Oct 11, 2007 (10:12 am)
I'd like to also convert my '05 Highlander from manual to automatic climate control. I pulled the controls out last night and was able to match the main plug with a photo from an automatic climate control from an '04 Highlander. However I do not see a plug for the fan switch control, and I'm afraid there might be some electronics involved here. I bought it anyway, and am going to try. I may have to get the wiring diagram book ($$$) but it's a start... I'll post back if I have any success. Replies to this message: phrosut (Oct 11, 2007 10:45 am)
#11 of 107 Re: Me too [donivanf] by phrosut Oct 11, 2007 (10:45 am)
Replying to: donivanf (Oct 11, 2007 10:12 am) I already have the auto climate control but I wanted to mention that the complete service manuals on CD I found on eBay for ~10 or 15 bucks if I remember right (I bought them when I bought our '03 HL in 10/02).   Phil
#12 of 107 2003 Highlander no cabin heat by 1rodger Oct 22, 2007 (1:19 pm)
I have a Toyota Highlander that doesn't provide heat for the cabin. The engine temp gauge is normal, but I'm getting cold ambient air from the vents. I have been using the A/C lately but tried heat today due to a cold snap. Is there some system that bypasses hot water from the cabin? My wife was driving and she heard a "pop" and remarked that the car never warmed up, I drove it this morning and there was no heat in the cabin. The coolant level is normal. The thermostat must be working or the car would overheat if stuck closed, or over cool if stuck open. Replies to this message: derekgaddy (Oct 26, 2007 5:20 pm)
#13 of 107 Re: 2003 Highlander no cabin heat [1rodger] by derekgaddy Oct 26, 2007 (5:20 pm)
Replying to: 1rodger (Oct 22, 2007 1:19 pm) I have a similar problem. I have electronic climate control and I only get hot air if my controls are above 77 degrees or so. Any idea what the problem is? I hate to go to the stealership. Help!!

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