DTC U1171-87: ECB Communication Error (CAN) (CL-Bus) Communication is Lost [10/2023 - ]: Procedure

Pre-procedure1

1. In accordance with the display on the GTS, select the "Health Check" menu.

   Procedure1

2. Check if DTCs of related systems or the CAN communication system are output.

   Result

   Result	Proceed to
   DTC U1171-87 is output together with one or more DTCs of a related system	A
   Other than above	B

   Post-procedure1

3. None

Result: 

A 

DIAGNOSTIC TROUBLE CODE CHART (RELATED SYSTEM) 

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ]