System Operation
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
The EPS control unit controls the EPS motor by these signals:
- Vehicle speed signal (from PCM)
- Engine speed signal (from PCM)
- Torque sensor signal
At idle or low vehicle speeds, the EPS control unit sends a signal to the PCM to increase the engine idle speed to prevent the engine from stalling.
When the EPS control unit detects a failure in the system, it stores a DTC and sends a signal to the gauge control module to turn the EPS indicator on.