DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message [08/2019 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Pre-Collision System > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Body Electrical > Pre-Collision System > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0100-87, U0125-87, U0126-87 and U0129-87 are not output	A
   DTC U0100-87, U0125-87, U0126-87 or U0129-87 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] 

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ]