DTC C1785: Fault Detection Signal Failure: Notes
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be stored. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the communication circuit is normal.
- When the diagnostic trouble code No. C1785 is stored in ACC/FCM-ECU, the diagnostic trouble code may also be stored in ETACS-ECU. When the diagnostic trouble code is stored in ETACS-ECU, perform the diagnosis of the diagnostic trouble code for ETACS-ECU first.