1 Answer

The ignition control module is integrated within the powertrain control module. It is not a separately replaceable component.

Description and Operation
Notes

PURPOSE

* The Ignition Control Module (ICM) is incorporated within the Powertrain Control Module (PCM) . The ICM receives engine position and speed information from within the crankshaft position sensor and desired spark advance information from the PCM.

OPERATION

* The ICM synthesizes a profile ignition pick up signal and ignition diagnostic monitor signal for use within The PCM.
* The PCM uses this information to determine which ignition coil to fire, calculating the turn ON/OFF times of the ignition coil required to achieve the correct dwell and spark advance.

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