DTC U0154: OCM Can Timeout: Notes
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If DTC U0154 is set, be sure to diagnose the CAN bus line.
CAUTION:
When replacing the ECU, always check that the communication circuit is normal.