gentex gntx-221 wiring pin out
Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=138415
Printed Date: May 08, 2024 at 9:52 AM
Topic: gentex gntx-221 wiring pin out
Posted By: mattt181
Subject: gentex gntx-221 wiring pin out
Date Posted: February 04, 2015 at 2:15 PM
I have a Gentex GNTX-221 mirror from a Lincoln Continental that has Autodim, LED Map lights, and Compass display. I have searched every Gentex thread here at 12v and no one has posted the wiring pin out for this mirror. One other person asked about this specific mirror a long time ago, but there was no definitive answer. See here.... https://www.the12volt.com/installbay/forum_posts.asp?tid=13524#reply
Does anyone have the wiring schematic, pin out info for the 7 flat connector on a Gentex 221 from a Ford/Lincoln Continental?
Thank you in advance.
Replies:
Posted By: tedmond
Date Posted: February 04, 2015 at 3:35 PM
Pin#1: Ignition – Ignition source when key is in the ON position
Pin#2: Ground – Chassis Ground
Pin#3: Reverse Over-ride – Connected to reverse lights. To disable compass when car is put in reverse for better visibility
Pin#4: Temp. + -Temperature probe +
Pin#5: Temp. - - Temperature probe –
Pin#6: Door switch – (Normally open) Turns on mirror LED lights
Pin#7: Battery – Constant 12v
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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
Posted By: mattt181
Date Posted: February 04, 2015 at 5:22 PM
Thank you for the reply. This mirror does not have temp display, so does the pin out layout change when there are not 2 pins allocated to temp probe?
Posted By: tedmond
Date Posted: February 04, 2015 at 5:41 PM
Last i checked, all GNTX-221 models had the temperature. Anyways, if your mirror does not have such, simple ignore those pins as layout does not change.
Looking at the plug with the release on top from WIRE SIDE, the left side is pin 1
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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
Posted By: mattt181
Date Posted: February 04, 2015 at 6:18 PM
Thank you again for the reply. I think all GM & Chrysler GNTX-221's are the same, but I have a feeling the Lincoln might be different. I say that because there are wires coming out of all 7 pins and from what I've been able to find by searching is that some Gentex mirrors have a 5v output from the rearview mirror for autodimming side mirrors to activate. I suspect this is the case with the Lincoln mirror, but someone who's been there, done that would settle it so I don't wire this mirror up incorrectly. Thanks again.
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