Manual to Automatic Temperature Control Swap (04 Intrepid 2.7)

300 Views 10 Replies 3 Participants Last post by JordanS, 4 mo ago

JordanS

Discussion Starter · 4 mo ago

Hello all! I was considering swapping out my manual climate control panel for an automatic one. Is this something relatively straightforward that someone could do in under an hour? As far as I know, all the ATC stuff is inside the control panel and there isn't anything else that I would need to add. You guys know more than I do. Thanks for your time!

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peva

· #2 · 4 mo ago

You would either need to do some under-dash cable hacking or swap the ATC version of the harness in place of your ATC version (partial disassembly of dash required). It would be more than an hour in either case.

The harness swap is the cleaner way to go, but might be difficult to find the harness from a yard or a private seller these days. I think I have the harness hack How-To on my desktop. I will try to post it - might not happen today.

Oh - you also would need to swap out the MTC blower motor resistor module for the ATC transistor module (drop-in replacement on the HVAC assembly). If your car doesn't have the sun sensor (red thing in center of dash at base of windshield), you would need to add it.

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peva

· #5 · 4 mo ago

JordanS said:
Also would all you need for auto lights is the right headlight switch and the sunlight sensor?

Sounds right. File under things I used to know.

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peva

· #8 · 4 mo ago

The connector may or may not be there. There's an insert that drops into a recess in the top of the dash - immediately behind the windshield. extends all that from side to side from one A-pillar to the other. Pull the A-pullers off and you should be able to lift the insert out. The connector would be in a recess right in the center of the dash. I believe my '99 2.7 had the connector already there.

I looked at the How-To for the MTC-to-ATC harness hack today on my hard drive. It would be difficult to post - would need to email it to you. If you want that, PM me your email address and we'll go from there. Even if you can get the ATC harnesses you need from your collision repair buddy, and don't need to do any hacking, it will familiarize you what's involved with the conversion. LET ME KNOW.

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