Need help installing remote starter on 97 BMW M3.
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=4214
Printed Date: May 28, 2024 at 10:35 PM
Topic: Need help installing remote starter on 97 BMW M3.
Posted By: rbc827
Subject: Need help installing remote starter on 97 BMW M3.
Date Posted: October 05, 2002 at 11:18 PM
I have installed most of my remote starter on my M3, but now need to connect to the Tach wire. What is the color of the wire, what voltage should it read, and where I can I find it? Thanks in advance.
Replies:
Posted By: SOUND PRESSURE
Date Posted: October 05, 2002 at 11:26 PM
Your tach wire voltage should read between 1-6 volts. Check for a black wire at the diagnostic plug.
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Sound Pressure
You know you have the right amount of pressure when your eyes start to water! Now you've got Juice!
Posted By: Velocity Motors
Date Posted: October 05, 2002 at 11:44 PM
Make sure that the DMM is on AC when you do this test for the tach wire
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: rbc827
Date Posted: October 06, 2002 at 9:47 AM
The car is a 1997 M3 automatic. I started tapping wires last night and I am almost done. The problem that I am having now is that the car will not try to crank. I probed the starter wire output from the remote start and it sends a 12v signal to the starter wire, but the car will not even try to turn over. My remote starter is a Rev model and it says that it has a automatic tach sensing module inside of it and I don't have to hook up the tach wire. But it does come with a wire that can be hooked up to the tach if the car will not start. The problem with this method is that the tach wire in the car is 7v + and the wire coming off of the remote module is a negative sensor. The instructions say to hook this tach wire to the negative wire at the coil. I don't know what that wire is.
I notice at the back of the key tumbler that a blue/white stripe wire has a connection to the 12v battery when the key has not been turned, but when you turn the key the blue/white stripe wire goes to ground. So I setup a relay to send a ground signal to the blue/white wire, but it that doesn't seem to help.
The radio and gauges and fan will come on, but the car doesn't want to start. I don't know why this is. Does it have to do with anything regarding the factory alarm wires? I pulled the factory alarm out and put in my Alpine in its place.
Posted By: Velocity Motors
Date Posted: October 06, 2002 at 10:00 AM
This vehicle is equiped with the EWS II immobilizer system that need to be bypassed when adding a remote start. The factory alarm is an Alpine unit anyways, but you still need to bypass the tranponder chip with a module and a spare key. When you meter the tach wire you have to be in AC not DC. The amount that was registering on the meter that you had is not correct and the connection to the tach wire on the BMW should have been a BLACK wire at the instument cluster.The wire is located in a white connector behind the instrument cluster. Do not unplug the white connector with the ignition on or turn the ignition on with the plug disconnected.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: rbc827
Date Posted: October 06, 2002 at 12:12 PM
Will the DEI 555B module work? I don't understand why the extra key is needed. I don't have a chip on it and where will I put the key?
Posted By: Velocity Motors
Date Posted: October 06, 2002 at 1:14 PM
Yes, the 555B will work witht he BMW. According to al our information on teh BMW, it does have a transponder chip in the head of the key. To verify this get a blank key cut and try to start the Beemer. If it doesn't start then you have a chip.... if it does , then you have antoher problem witht he wiring. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
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