2nd ignition
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=12004
Printed Date: August 29, 2025 at 10:58 AM
Topic: 2nd ignition
Posted By: losingit
Subject: 2nd ignition
Date Posted: April 09, 2003 at 2:52 PM
what is the second ignition wire used for?
Replies:
Posted By: profuse007
Date Posted: April 09, 2003 at 4:13 PM
depending on your car, most car that i know that have two ignition wires. so the remote start unit provide two or more ignition wires to ignite your engine.
i hope this helps
Posted By: Velocity Motors
Date Posted: April 09, 2003 at 5:18 PM
Second ignition is used for powering up various computers in the vehicle. The most common is the transmission computer. If this wire does not see 12 volts you can damage the transmission over a period of time.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: profuse007
Date Posted: April 09, 2003 at 9:04 PM
jeff,
i thought that the car that have 2 ignition will have two ignition coils that charges up to discharges to the spark plugs. for a 4 cylinder, one might use for 1st and 2nd cylinder and the second 3rd and 4th or which ever distributed evenly to its unique engineering. but i dont see why they would call the 2nd "ignition" in the first place and not relating to ignition. please correct me if am wrong.
Posted By: profuse007
Date Posted: April 09, 2003 at 9:07 PM
but i always hook up 2 ignitions wire that provided in the vehicles.
Posted By: Velocity Motors
Date Posted: April 09, 2003 at 9:21 PM
The number of ignition wires has no relation to the number of coils in the starter system. Take for example a Honda product has 2 IGN wires ( on some models ) but this has no relation to the ICM that the vehicle has. The ICM controls the spark that the spark plugs receive from the starter. When powering up ignition wires for remote start purposes you are essenstially powering up secondary computer's and control modules ( ABS, traction control, etc ) so that the vehicle runs like you placed the key in the ignition cylinder and turned it over yourself. Does this make sense ?? ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: CCRoadshop
Date Posted: April 11, 2003 at 4:10 PM
good call Jeff.........
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Installer - Circuit City Roadshop(2 1/2 years n counting)
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Alpine CDA7894(soon to be the cda9815)
Pioneer XM unit(soon to be direct link alpine)
Audiovox 995C alarm/remote start
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