Can you manually check the AC switch to see if it is opening and closing? If you are 100% sure the wiring is good I would start looking at that controller.
Pre-03 nav delete how-to (3 Viewers)
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Here is the photo of the Mag Clutch relay which energizes the compressor and the AIR INLET CONTROL SERVO MOTOR. These are the two areas you say do not work. Check this wiring real well once again.
To be clear, I have an 02 with nav. What part do I need to purchase to get the manual AC knobs?
Just search ebay for 100 series LC non-nav AC controls??
Just search ebay for 100 series LC non-nav AC controls??
Yes you just need to match the controller to your set up. There is a datapoint on this thread where a member attempted to use a 3 knob controller that had a rear heat button and his LC did not have rear heat. It created an issue and he had to get another 3 knob controller. If your LC is a Southern model it is unlikely you have rear heat. Find a 3 knob off of Ebay or a salvage yard that has just the Rear AC button and not the rear heat. Easy peasy.
Most everything I'm seeing is the full bezel and AC controls.
Pretty sure I have a southern version. Mine and my wife's both have ac and heat in the rear.
I did notice some we're rear heat and figured that could cause issues.
How do you know you have rear heat? I do not have rear heat yet my controls in the rear have an adjustment for it. There is not rear heater core in my vehicle.
YardPig
SILVER Star
Look under the seat for the heater and blower...
I just checked and I have the controls in the rear too. Didn't take it to work this morning, but I'll check this evening. Im just gonna turn it on cold and warm and see if it blows.
I was asking @fblainen how he determined if he had the heat. I haven't seen many with the heat in this area so I was surprised.
sub'd, future "upgrade" since my radio quit working on me
It is well worth it.
Just wanted to check back and let you all know that I confirmed AC and Heat in the rear of my 02 LC.
Moving the rear ac controller to cold will blow cold air out the top vents in the third row. Moving it to heat will blow hot air out the bottom vents in the middle row. Here's a photo of my rear AC controls.
Moving the rear ac controller to cold will blow cold air out the top vents in the third row. Moving it to heat will blow hot air out the bottom vents in the middle row. Here's a photo of my rear AC controls.
Yep, you've got rear heat and AC.
I have that same controller but my vehicle does not have the rear heat option. I do have middle seat vents that are near the floor that will put out heat. I believe the rear heat option was that is on the 3 knob controller is for the supplemental rear heat that is under the drivers seat. In this thread go back to Post #136 and read about @m3kachu issues with using a 3 knob that had a rear heat button. It appears to matter what setup you have.
Post #180 has a pic of the Rear heat button.
I just went back and reread. @Parbo in post #180 installed the 3 knob with the rear heat button. He could not get his ac to work once it was installed and he has not reported back.
I did read that. His issue was his 3 knob only had a button to turn on rear heat. So the normal three know with the Rear fan button should allow me to continue to use my rear heat/AC controls, correct?
Yes, you are correct.
Ok, can I pick your brain (or anybody’s here) to clarify something?
I’ve read this entire thread and others. I was under the impression that for either an LC or LX 2001-2002, I would have to source the whole bezel and three-knob assembly, paying attention to the presence or absence of rear heat. For the LX I would be best off to order the LC non-nav double-DIN brackets rather than trim the existing ones.
But it seems that for only the LX you in fact do NOT need to swap to the three-knob bezel setup? In your photos you seem to have configured the LX with the splicing/Metra harness yet retained a functional digital hvac control setup. I just wanted to confirm that this is actually possible and if you needed a new non-nav bezel anyway or other parts to fit the screen of the double-DIN? Or did the double-DIN fit behind the existing nav bezel with/without modification?
I am not afraid to take the project on, but it would be good to know exactly what I am in for. I am looking at purchasing a 2001-2002 LC or LX.
Thanks in advance!
