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 U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U1107-87: Lost Communication with Power Management Module Missing Message; DTC U1115-87: Lost Communication with Tilt & Telescopic Module Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [02/2024 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Driver Seat > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Turn the ignition switch to ON.
2. Wait 10 seconds or more.
3. Check for DTCs.

   Body Electrical > Driver Seat > Trouble Codes 

   Result

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

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2024 - ]

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2024 - ]