You are here: Forums SUVs Toyota Highlander Toyota Highlander Heating Ventilation and Air Conditioning

Toyota Highlander Heating Ventilation and Air Conditioning

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

You are in the Toyota Highlander Forum. Your Hosts are steve_ & tidester

What is this discussion about? Toyota Highlander, SUV

Messages Page 9 of 11 1 ... 5 6 7 8 9 10 11 Prev Next Last

Go To Msg # Search This Discussion

#80 of 107 Re: A/C Problems [leean21] by rut Jul 20, 2009 (4:26 pm)
Replying to: leean21 (Jul 20, 2009 3:20 pm) I actually took it apart and found a broken wire connecting the temp knob to the ckt board. It was a 3 wire cable soldered on each end. I removed the cable and replaced it with 3 individual wires. Problem solved.
#81 of 107 Re: Highllander AC/heat control problem [ladyk1] by jorge6088 Aug 02, 2009 (1:51 pm)
Replying to: ladyk1 (Mar 17, 2008 5:05 pm) I have same problem and tightened the knob. This has reduce problems but once in a while still get switch from cool to heat. How do I fix the broken cables? are there any specific instructions on how to do this?
#82 of 107 Re: a good way to thank you for helping me [kburger1] by jorge6088 Aug 02, 2009 (1:58 pm)
Replying to: kburger1 (May 27, 2009 10:14 pm) I have same problem and tightening knot did not fix it. I like to try to solder wires. Could you please send me more specific instructions on how to remove ac unit? thanks.
#83 of 107 circuit board removal by rut Aug 02, 2009 (5:42 pm)
You have to remove the complete unit out. it just kinda snaps out if I remember correctly. there is a circuit board that you have to remove. There are a few screws holding it in. Be careful handling the board as to not emit any static electricity that would take out the ic's on the board.   You will find a small circuit board mounted where the temp control is. Go assuming you have taken the knobs off in front and removed the nuts on the controls, you can unclip the board and pull it out. There is a 3 wire cable connecting the circuit board to the temp switch. Mine had a broken wire at the small board. Be very careful trying to solder this back. It requires a small tip and not too much heat.   Hope this helps. Better than spending $800 for a new one or $300 for a used one.   Rut Replies to this message: davidc4607 (Oct 18, 2009 3:21 pm) davidc4607 (Oct 26, 2009 2:27 pm)
#84 of 107 Re: '01 Highlander Aircond problem [slowcar] by Alirob Aug 07, 2009 (1:38 pm)
Replying to: slowcar (Jul 20, 2009 1:35 pm) Slowcar, I have exactly the same problem on my 02 Highlander. Have you found a solution yet? Rob Replies to this message: slowcar (Aug 25, 2009 12:26 pm)
#85 of 107 Re: '01 Highlander Aircond problem [Alirob] by slowcar Aug 25, 2009 (12:26 pm)
Replying to: Alirob (Aug 07, 2009 1:38 pm) No...It seems like you and I were the only ones having this problem. It must be some thing very simple that prevents the freon from going to the driver side's vent. Hate to bring it in the dealer and spend $thousands$ .... Please post it here if you found some thing. Thanks.
#86 of 107 Re: '01 Highlander Aircond problem [slowcar] by rohoo Aug 28, 2009 (5:29 am)
Replying to: slowcar (Jul 20, 2009 1:35 pm) slowcar, I have the exact same problem on my 01' Highlander. The temperature range is approximately 12-18 degrees warmer on the drivers side as opposed to the passenger side. I will let you know if I come up with anything. Replies to this message: slowcar (Oct 08, 2009 9:23 am)
#87 of 107 Re: a good way to thank you for helping me [kburger1] by cps2698 Sep 06, 2009 (8:07 am)
Replying to: kburger1 (May 27, 2009 10:14 pm) Just wanted to thank the original poster regarding the ac temp issue and the loose nut. Just as you said, my husband took the knob off and the nut was loose. Boy am I glad I was reading this yesterday. It saved us a lot of money!
#88 of 107 Re: '01 Highlander Aircond problem [rohoo] by slowcar Oct 08, 2009 (9:23 am)
Replying to: rohoo (Aug 28, 2009 5:29 am) Any news? Also I noticed that the driver's side air will kick in cold if the outside temperature is low enough, like in the low 80's. I even heard a "click" sound from a solenoid when it started getting cold. Of course the passenger's side stays cold the whole time.....Any body's having an idea? Please help.
#89 of 107 Re: '01 Highlander Aircond problem [slowcar] by wwest Oct 08, 2009 (12:14 pm)
Replying to: slowcar (Jul 20, 2009 1:35 pm) Thiis is just/simply a guess. In the conditions you describe the Toyota and Lexus series automatic climate control has always, since at least 1990, been VERY prone to sudden, inadvertent, fogging of the interior windshield surface. There is even addressed, obliquely, within your owners manual with a direction to NEVER have the system in defrost/defog/demist mode during cooling airflow operation.   While those systems are prone to "automatically" putting the system into a mode wherein the danger is more likely to arise, having the manual system in recirculate mode during cooling use is one of the base criteria for "stumbling" across the same windshield fogging situation.   Even without the system being in defrost/defog/demist mode there is still a not insignificant possibility that the windshield interior surface will be cooled to the cabin dewpoint and gradually, or in some unique case, SUDDENLY fog over with a light coating of condensation.   What you may be experiencing is Toyota/Lexus latest FIX for the HAZARDS arising from a seriously flawed A/C design. Having the driver's side air outflow be somewhat higher in temperature would undoubtedly allviate some of the potential for windshield fogging on that side of the vehicle.

Messages Page 9 of 11 1 ... 5 6 7 8 9 10 11 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums SUVs Toyota Highlander Toyota Highlander Heating Ventilation and Air Conditioning