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 [12/2024 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Driver Seat > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

Pre-procedure1

• Turn the ignition switch to ON.
• Wait 10 seconds or more.

• Check for DTCs.

  Body Electrical > Driver Seat > Trouble Codes 

  Result

  Result	Proceed to
  DTCs are not output	A
  U0100-87, U0129-87, U0140-87, U0163-87, U1107-87, U1115-87 or U114F-87 is output	B

Post-procedure1

• None

Result: 

A 

USE SIMULATION METHOD TO CHECK 

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

for HEV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2024 - ]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2024 - ]