| 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, afterrun, 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. |