Galant L4-2.4L (4G69) (2004)
The multi-center display unit (middle grade type) communicates with specific units via CAN and M bus lines. If an abnormality occurs (such as
communication cancellation, interruption or out-of-range data), the screen will be frozen for some time. If a correct signal is received within specific
period after that, the screen will be updated. If not, "COMMUNICATION ERROR" will be displayed on the screen. This screen indicates a failure in the
multi-center display unit (middle grade type) itself, communication error with relevant units, components or sensor. In this case, you can pinpoint a
trouble spot according to the CAN communication DTC code chart.
FAILURE DIAGNOSIS SERVICE MODE
FUNCTION <MIDDLE GRADE TYPE>
The multi-center display unit (middle grade type) with the given functions for the failure diagnosis service.
Starting up the service mode
1. ignition switch "LOCK" (OFF) position.
2. Turn the ignition switch to the "ACC" position while depressing the "DISP" button on the multi-center display unit (middle grade type). After
approximately 5 seconds, the service mode start-up screen is displayed.
Communication check