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Network Message Chart

Module Network Input Messages: PSCM 

Broadcast Message Originating Module Message Purpose
Engine speed PCM Engine speed is monitored to initiate EPAS activation and continued operation.
Engine status PCM Used to provide the PSCM with the current engine status; off, ready, cranking, running, stalled, afterrum, shutdown or not defined.
Vehicle configuration data IPC Used to provide the PSCM with the current vehicle configuration.
Vehicle configuration / information IPC Used to compare the PSCM configuration against the vehicle's specific configuration (central car configuration).
Vehicle speed PCM Used to determine the necessary level of steering assist.
Wheel speed data ABS Used to validate the steering wheel component angle by comparing the rotational speeds of each wheel. The difference in the speed of each wheel is used to derive a steering angle for comparison against the absolute steering angle sensor.