DTC U1D00: Continuingly Invalid Authentication Data Received From Gateway; DTC U1D07: Continuingly Invalid Authentication Data Received From ECM/PCM PU-Bus; DTC U1D08: Continuingly Invalid Authentication Data Received From VDC PU-Bus; DTC U1D10: Continuingly Invalid Authentication Data Received From TCM PU-Bus [11/2021 - ]: Procedure

1. Turn the ignition switch to ON.
2. Using the GTS, perform the DTC clear of the control module in which the DTC was detected.
3. Using the GTS, read the DTC of the control module in which it was detected.

   Result

   Result	Proceed to
   DTC U1D00, U1D07, U1D08 or U1D10 is not displayed	A
   DTC U1D00 displayed (Current code)	B
   DTC U1D07 displayed (Current code)	C
   DTC U1D08 displayed (Current code)	D
   DTC U1D10 displayed (Current code)	E

Result: 

A 

PERFORM INSTRUCTED PROCEDURES 

Currently, it is normal.

Result: 

B 

PERFORM INSTRUCTED PROCEDURES 

1. Perform the diagnosis of the following "references" for displayed DTCs.

   Refer to DTC U1C00: Invalid Authentication Data Received From Gateway [11/2021 - ] 

Result: 

C 

PERFORM INSTRUCTED PROCEDURES 

1. Perform the diagnosis of the following "references" for displayed DTCs.

   Refer to DTC U1C07: Invalid Authentication Data Received From ECM/PCM PU-Bus [11/2021 - ] 

Result: 

D 

PERFORM INSTRUCTED PROCEDURES 

1. Perform the diagnosis of the following "references" for displayed DTCs.

   Refer to DTC U1C08: Invalid Authentication Data Received From VDC PU-Bus [11/2021 - ] 

Result: 

E 

PERFORM INSTRUCTED PROCEDURES 

1. Perform the diagnosis of the following "references" for displayed DTCs.

   Refer to DTC U1C10: Invalid Authentication Data Received From TCM PU-Bus [11/2021 - ]