DTC B278C: Lost Communication with Power Source Control [07/2015 - ]: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR [07/2015 - ]

Result:  NEXT

NEXT 

See step  2

1. Check for DTCs. Refer to DTC CHECK / CLEAR [07/2015 - ]

   OK

   DTC B278C is not output.

Result:  OK

OK 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ]

Result:  NG

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [07/2015 - ]