DTC C1789: Vehicle Identification Malfunction: Description

This DTC is stored when the suspension control ECU is initialized, and is cleared when the vehicle identification information received through CAN communication is correctly stored in the EEPROM.
DTC C1789 is stored as the vehicle specification and data do not match when an incorrect steering control ECU, ECM or AFS ECU is installed.

DTC Code	DTC Detection Condition	Trouble Area
C1789	When either condition is met: Vehicle identification information is not stored. The information stored in the suspension control ECU and the vehicle identification information received through CAN communication do not match.	Suspension control ECU ECM AFS ECU Steering control ECU