DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0101: Lost Communication With TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0146: Lost Communication With Serial Data Gateway Module "A"; DTC U0402: Invalid Data Received From TCM; DTC U1077: Control Module Communication Bus "EyeSight Local - Bus3" Off; DTC U1235: Lost Communication With EyeSight; DTC U1433: Invalid Data Received From EyeSight; DTC U1C00: Invalid Authentication Data Received From Gateway; DTC U1C07: Invalid Authentication Data Received From ECM/PCM PU-Bus; DTC U1C08: Invalid Authentication Data Received From VDC PU-Bus [12/2023 - ]: Procedure

1. Turn the ignition switch to ON.
2. Check for DTCs.

   Body Electrical > EyeSight Security Gateway > Trouble Codes 

   Is DTC U0101 displayed? (Current code)

   Result	Proceed to
   YES (Perform the diagnosis of DTC U0101)	A
   NO	B

Result: 

B 

See step  3

Result: 

A 

See step  2

1. Turn the ignition switch to ON.
2. Read the Data List according to the display on the GTS.

   Body Electrical > EyeSight Security Gateway > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Transmission Type	Transmission type as judged by the No. 2 network gateway ECU	MT/AT / CVT	MT AT / CVT	-

   Body Electrical > EyeSight Security Gateway > Data List 

   Tester Display
   Transmission Type

   Does the data match the vehicle (actual transmission type)?

   Result	Proceed to
   YES (Perform CAN communication system troubleshooting)	A
   NO (Perform [Utility] of [Initialization of mounted unit information])	B

Result: 

A 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

B 

Perform [Utility] of [Initialization of mounted unit information]. Refer to  UTILITY [12/2023 - ] 

HINT: 

Perform the diagnosis for CAN communication system.

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

Result

Result: 

NEXT 

END