S15/T15 Sonoma P/U 2WD L4-2.2L VIN 5 Flex Fuel (2001)
Ignition Control Module: Description and Operation
The ICM receives the Ignition Control (IC) signals from the PCM which in turn triggers the corresponding ignition coils. Since the PCM controls spark
timing and ignition control during crank and run, there is no bypass mode. The ICM is not repairable. When an ICM is replaced, transfer the remaining
components to the new module.
