DTC C1789: Vehicle Identification Malfunction [08/2018 - ]: Description

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

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