Speed Pulse - General
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=14038
Printed Date: May 15, 2025 at 6:59 AM
Topic: Speed Pulse - General
Posted By: jaxman
Subject: Speed Pulse - General
Date Posted: May 27, 2003 at 7:31 AM
Ok , I am trying to install a Pioneer AVIC 505 Navigation system in a Mitsubishi Carisma 1996 (Europe).
I am trying to discover the damn Speed Pulse on the car.
What voltage should I get ? AC /DC ? What voltage should I get when the car has:
a. Engine Off
b. Engine in runing in free gear
c. Car running on the road
Do I have such a wire in this car ?
Can somebody help please ?
Thank you.
Replies:
Posted By: NowYaKnow
Date Posted: May 27, 2003 at 8:58 PM
When I test speed wires I set my meter to AC volts and ground one side and tap the possible speed wire with the other. It should sit at nothing really readable and go up to maybe a volt or so with the car rolling. Faster you go the more it rises. Might want to have someone help you as it's tough sometimes to roll the car and watch the meter at the same time. As far as speed wire color/location I have no info on the Carisma. Also according to MECP, to test a speed wire put your meter on a 30VDC scale, and it should read 0 volts until the car starts moving at which time it will read 5 - 12 volts. Never tried this method I always use the first method..Good luck
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