Help with Gentex Wiring

[kennethfuller@juno.com]

Just took possession of my 2012 Prius v III without Gentex Auto Dim/Homelink rear view mirror. I've purchased a Gentex 453 015894 homelink/compass but am unable to identify the wiring.

The connector is a ten pin with six wires. Black, Yellow/Red, Green/White, Violet/Red, Green/Brown and Blue/Brown.

I've found two sites which identified the wiring but are not the same. Here are the two results:


Black-Ground
Purple-ACC 12V Power
Green with White-Reverse Lights
Green with Brown-Temp Sensor
Blue with Brown-Temp Sensor
Yellow with Red-Constant 12V Power

and

Black-Ground
Violet with Red-Negative Ambient Temp Sensor
Green with White-Reverse Lights (didn't use)
Green with Red-Positive Ambient Temp Sensor
Blue with Red-Ignition Switched 12V Power
Yellow with Red-Constant 12V Power

Any thoughts as it appears either the Blue/Red or Purple is 12V.

[Flyabus]

Originally Posted by kennethfuller@juno.com

Just took possession of my 2012 Prius v III without Gentex Auto Dim/Homelink rear view mirror. I've purchased a Gentex 453 015894 homelink/compass but am unable to identify the wiring.

The connector is a ten pin with six wires. Black, Yellow/Red, Green/White, Violet/Red, Green/Brown and Blue/Brown.

I've found two sites which identified the wiring but are not the same. Here are the two results:


Black-Ground
Purple-ACC 12V Power
Green with White-Reverse Lights
Green with Brown-Temp Sensor
Blue with Brown-Temp Sensor
Yellow with Red-Constant 12V Power

and

Black-Ground
Violet with Red-Negative Ambient Temp Sensor
Green with White-Reverse Lights (didn't use)
Green with Red-Positive Ambient Temp Sensor
Blue with Red-Ignition Switched 12V Power
Yellow with Red-Constant 12V Power

Any thoughts as it appears either the Blue/Red or Purple is 12V.

Hi. I am eagerly awaiting an answer. I have the exact same issue. Thanks
George

[Fstr911]

I am considering installing this on my v also. I went to youtube and searched Gentex and Toyota. There are at least 2 videos that show the installation in less than 2 minutes (I'm never that lucky).

Take a look carefully. It looks like the connection is already there on the Camry....could we be that lucky on the Prius v?

I also tried to pull down the light on the cieling on my v but it didn't pop out like on the video. Caution is urged.

Here's one of the links

2012 Toyota Camry Plug-Play Gentex Auto-Dimming Mirror Upgrade (2 MIN INSTALL!!!) - YouTube

2012 Toyota Camry Plug-Play Gentex Auto-Dimming Mirror Upgrade (2 MIN INSTALL!!!) - YouTube

Here's the other link:

2012 Toyota Camry Plug-Play Gentex Auto-Dimming HomeLink Mirror Upgrade (2 MIN INSTALL!!!) - YouTube

2012 Toyota Camry Plug-Play Gentex Auto-Dimming HomeLink Mirror Upgrade (2 MIN INSTALL!!!) - YouTube

Please update us if you resolve this.

[monkey28]

I uploaded pdf file for factory wiring.

[monkey28]

I just checked mine and I don't see connector reserved for the mirror, can you able find yours?

[Fstr911]

Monkey28 - How did you pull down the overhead light? Was is as simple on the Prius v as it was in the Camry shown on youtube?

I pulled down pretty hard on my light casing and it didn't pop out. I'm afraid I'm going to damage something.

By the way that diagram shows the connector.

[monkey28]

You have to pull down hard, only 4 clips there, but start pull from windshield side, those clip will break easily if cold. So prepare to get new one.

For the connector, I checked that connector located at driver the bottom of a-pillar. But I cant't see the mirror harness after pull down the map light assy. Please check yours and let me know.

[kennethfuller@juno.com]

Originally Posted by Flyabus

Hi. I am eagerly awaiting an answer. I have the exact same issue. Thanks
George

Flyabus.

Job is completed and not that bad. I posted some photographs in my album on my profile site. Just left click on my user name and then go to albums.

I found that acquiring proper tools made the removal of the panel much easier. Northern Tool or Harbor Freight plastic trim panel removal tools for less than ten bucks. Photo of tools in my photo album. I, like you, was very concerned about damaging the panel. Once the retainer popped it was a piece of cake.

I obtain ground by self tapping screw in side of panel frame. Found constant 12V power in overhead panel plug using test light. The keyed 12V was a little more difficult but not bad. Removed the visor, visor holder and pulled down the rubber trim around the door. I did not remove the pillar trim. I ran two wires, one for 12V switched power and one for reverse power to remove dimming from mirror when in reverse. I routed the wires behind the side curtains and then down the door frame replacing the rubber trim to hold in place. I obtained 12V switched power from the fuse box power port fuse. That would be the cigar lighter from us old folks.

I haven't found reverse power yet but will post when found.

I hope this and the photographs help. If you have questions e-mail me or ask here.

(PS - Since I'm new here I do not have photo posting privileges in the forum thus the photographs are posted in my album - sorry)

[rjparker]

Nice work on the Gentex install. I have a couple of questions:

1. Your diagram suggests prying the console from the sides while the photo shows from the bottom. Do you start on the bottom and finish on the sides?

2. You indicate that only the constant 12v was available above. Were there other wires or connectors that might have worked or did you test everything up there? If reverse dimming was not needed it would be nice to not have to run a wire down for switched +12v.

[Fstr911]

Thanks Monkey & RJParker.

Based on the detail showing the front retainer configuration, it looks like if the console is pulled from the rear side like they do in the Camry youtube video it could break the top retainer arm.