DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163: Lost Communication with Navigation Control Module [08/2015 - 08/2021]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2021] ).
2. Recheck for DTCs and check if the same DTC is output again.
   RESULT
   
   

   Result	Proceed to
   DTCs are output	A
   DTCs are not output	B

   HINT: 

   • If CAN communication system DTCs are stored, they may also be stored for other systems.
   • If the CAN communication system has been inspected and repaired, these DTCs will not be output when rechecking for DTCs.
   • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2021] ).

Result: 

A 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] )

Result: 

B 

USE SIMULATION METHOD TO CHECK 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 08/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - 08/2021] )