System Operation
WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. 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 ECM/PCM)
- Engine speed signal (from ECM/PCM)
- EPS motor angle sensor signal
- Torque sensor signal
At idle or low vehicle speeds, the EPS control unit sends a signal to the ECM/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, it sends a signal to the gauge control module to turn the EPS indicator on.