Jump to content

ICM Died... I have a free to me MSD

Recommended Posts

I know the jeep system is hard to improve on, but my ICM is dead and I have a free MSD 6...  I called msd and the guy there made it sound like the only way to trigger the MSD is through a working ICM.  If this is the case I'll just put the Chinese ICM that I can get at the autoparts in and a factory coil.   


I would like to run the MSD and Coil I have for free If i can so I don't have any out of pocket on this fix...  Does anyone know if the factory ecu square wave input can trigger the MSD6?  And if so is it connected to the white wire????   (From MSD manual "This wire is used to connect to breaker points, electronic ignition amplifier output or to the Yellow wire of an MSD Timing Accessory. When this wire is used, the Magnetic Pickup connector is not used.")


There are four wires at factory icm ; 



tach signal d1

ecu square wave input...  

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...