DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message [12/2024 - ]: Procedure

1. Using the GTS, perform a Health Check.

   Result

   Result	Proceed to
   DTCs other than CAN communication system DTCs are output.	A
   Only CAN communication system DTCs are output.	B
   None of the above conditions are met.	C

Result: 

A 

GO TO  DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ] 

Result: 

B 

REFER TO " DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ]  " 

Result: 

C 

USE SIMULATION METHOD TO CHECK 

Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]