How do you test an ICM?
How do you test an ICM? How to Test an Ignition Control ModuleRemove one plug wire at the spark plug and insert an old spark plug into the end of the plug boot. Check for voltage at the coil positive terminal when the ignition key is on. Locate the ignition module positive (+) wire. Locate the ignition module negative (-) wire. Can a bad FICM cause a bad 6.0 Powerstroke? One of the regular 6.0 Powerstroke problems we see coming into the shop is a faulty fuel injection control module or FICM for short. This device converts regular 12 volts...