keyless start w/push button switch
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39553
Printed Date: July 22, 2025 at 5:05 AM
Topic: keyless start w/push button switch
Posted By: modmastermitch
Subject: keyless start w/push button switch
Date Posted: September 22, 2004 at 2:07 PM
hey
id like to start my car with a push button switch without having the key in the ignition
i know i have to wire a momentary switch to "start" in place of the ignition, but this only starts the car if they key is in the ignition and turned to "on"
i want to by-pass the ignition, and hav a separate toggle switch to turn the ignition on, but im not sure how to do this.
any help would be appreciated
i have a 2003 vauxhall corsa. it has an imobiliser, but i would assume that if i turned on the ignition with a switch it would be like turning the key, and therefore disable the immobiliser.
thanx
*mitch*
Replies:
Posted By: csorb
Date Posted: September 22, 2004 at 2:25 PM
Don't know anything about this car but you will probably have to connect a DEI 555U to your ignition toggle switch and put a key in the box to disable the immobiliser. You also probably have to use a relay and have the toggle switch set to ground to turn on the relay (and the 555U). Let the relay drive the ignition current.
Posted By: modmastermitch
Date Posted: September 22, 2004 at 3:25 PM
what is a DEI 555U and how does it work,
n e diagrams would be helpful
Posted By: csorb
Date Posted: September 23, 2004 at 7:39 PM
The 555u is used to transmit the code from your key to the sensor near the ignition switch. Power and ground is all you need, with the coil looped around your receiver ring. The ground should come from your toggle switch.
put in a relay for your ignition
86 and 87 12 volts (heavy source)
85 to the toggle switch which is also connected to the 555u
30 to your ignition wire.
Good luck !
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