Diagnosing problems w/Thunderbolt V ICM

[dmeals]

Does anyone know how to check an ICM module to determine if it is working properly? Warning alarm not sounding when ignition is turned on before start-up and ignition is not advancing properly. Would like to be certain module is defective before spending big bucks for a replacement.

Help appreciated.

 

[achris]

Re: Diagnosing problems w/Thunderbolt V ICM

You can download the manuals for it, with all the appropriate tests and diagnostics.... If you had give the engine, year and serial number I could have posted them here, right now, for you....

Or you can just browse through this list and select the one you need.

http://forums.iboats.com/showthread.php?t=251571 (Thanks Don)

Chris.......

 

[Don S]

Re: Diagnosing problems w/Thunderbolt V ICM

Check out your alarm and alarm switches first. If one of them is defective and closed, it will prevent timing from advancing. Just disconnect the Tan/blu wire from the ICM and advance should work.