DTC U0422: Invalid Data Received From Body Control Module

DTC detecting condition: 

CAN data from body integrated unit is abnormal.

Trouble symptom: 

• After the "Welcome" is displayed, even if the ignition is turned to ACC ON, the screen remains in black and the system does not startup.
• When the ignition is turned to ACC ON while the "Welcome" screen is being displayed, the screen remains the same.
• When the driver's door is opened while the "Good-bye" screen is being displayed, the screen remains the same.
• Frequency of advice to take a rest increases.
• Brightness of multi-function display does not change.
• Brake light status is not displayed correctly in the advanced equipment screen.
• Headlight status is not displayed correctly in the advanced equipment screen.
• Front fog light status is not displayed correctly in the advanced equipment screen.
• Rear fog light status is not displayed correctly in the advanced equipment screen.
• Headlight AUTO switch status is not displayed correctly in the advanced equipment screen.
  NOTE: For the diagnostic procedure, refer to DTC U0074. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0074 CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF .