DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message [09/2024 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Active Noise Control > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Check for DTCs.

   Body Electrical > Active Noise Control > Trouble Codes 

   Result

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

   HINT: 

   • If CAN communication system malfunction DTCs are output, they may also be output for other systems.
   • If the CAN communication system has been checked and repaired in other systems, the DTC will not be output after rechecking for DTCs.
   • If the DTC is output frequently, duplicate the conditions that cause a malfunction and perform the check again, even though the DTC was not output after rechecking for DTCs.

     Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2024 - ]