avic-n1 reverse signal polarity

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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=35612
Printed Date: May 15, 2024 at 1:09 PM

Topic: avic-n1 reverse signal polarity

Posted By: USM16
Subject: avic-n1 reverse signal polarity
Date Posted: July 14, 2004 at 11:07 PM

I am installing AVIC-N1 in 2004 Honda Odyssey

Pioneer Manual states that this wire looks for a "Change in voltage"

Obvious connection is to reverse lamps but, I can get the VSS signal and the reverse indicator lamp signal from the PCM plug directly behind the display unit for a clean install.

The reverse signal at the pcm grounds when reverse is selected and a relay is used to switch 12V to the actual reverse lamps.

Is the AVIC-N1 smart enough to determine the polarity when the car is in foreward motion or do I have to tap into the reverse relay output located way across the dash to provide +12V when in reverse?

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US M16 (The Rifle)

Replies:

Posted By: auex
Date Posted: July 14, 2004 at 11:20 PM

Yes, it is smart enough to detect a change in voltage or in state.

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Posted By: USM16
Date Posted: July 14, 2004 at 11:39 PM

Thanks auex

How about the "light switch" connection at avic-n1, I have both a +12V lights on signal and a variable "dim" signal available at the vehicle radio plug.

Will the avic "dim" or is this supposed to be a solid 12V when the lights are on?

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US M16 (The Rifle)

Posted By: kcmedic
Date Posted: July 17, 2004 at 12:51 PM

You need the solid 12v on/off. It doesn't use the dimmer.