DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [11/2021 - ]: Procedure

1. Check the vehicle specification.

   Result

   Result	Proceed to
   for 8AR-FTS or for 2GR-FKS	A
   for 2UR-GSE	B

Result: 

B 

See step  5

Result: 

A 

See step  2

1. Check the DTCs.

   Powertrain > Engine > Trouble Codes 

   HINT: 

   If the pre-collision system outputs U0300-51 or U0300-57, SFI system DTCs may also have been output. Check the SFI system first.

   OK

   SFI system DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SFI SYSTEM 

for 8AR-FTS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]

for 2GR-FKS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - ]

Result: 

OK 

See step  3

1. Using the Techstream, perform the Health Check.
2. Check for DTCs.

   OK

   ECUs other than the forward recognition camera do not output specification information mismatch DTCs related to the ECM.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM 

for 8AR-FTS: Refer to REMOVAL [08/2015 - ]

for 2GR-FKS: Refer to REMOVAL [10/2017 - ]

for 2UR-GSE: Refer to REMOVAL [11/2021 - ]

Result: 

OK 

See step  4

1. Read the Data List according to the display on the Techstream.

   Body Electrical > Pre-Collision System > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Vehicle Information (Conv/HV/EV)	Vehicle information (Conv/HV/EV)	Unknown / Conv / HV/EV	Unknown: Vehicle information not confirmed Conv: Conventional HV/EV: Hybrid vehicle	-
   Vehicle Information (Transmission Type)	Vehicle information (transmission type)	MT, AT, CVT, MMT, SMT, HV/EV - AT or Unknown	Displays the type of transmission	-

   Body Electrical > Pre-Collision System > Data List 

   Tester Display
   Vehicle Information (Conv/HV/EV)
   Vehicle Information (Transmission Type)

   HINT: 

   • When the specification stored by the forward recognition camera and the vehicle specification do not match, there is a malfunction in the specification information stored by the forward recognition camera. Therefore, replace the forward recognition camera.
   • When the specification stored by the forward recognition camera and the vehicle specification match, an ECM with different specifications may be installed. Therefore, replace the ECM.

   Result

   Result	Proceed to
   Specification stored by the forward recognition camera and vehicle specification do not match	A
   "Unknown" is displayed
   Specification stored by the forward recognition camera and vehicle specification match	B

Result: 

A 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  REMOVAL [09/2020 - ] 

Result: 

B 

REPLACE ECM 

for 8AR-FTS: Refer to REMOVAL [08/2015 - ]

for 2GR-FKS: Refer to REMOVAL [10/2017 - ]

for 2UR-GSE: Refer to REMOVAL [11/2021 - ]

1. Check the DTCs.

   Powertrain > Engine > Trouble Codes 

   HINT: 

   If the pre-collision system outputs U0300-51 or U0300-57, SFI system DTCs may also have been output. Check the SFI system first.

   OK

   SFI system DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  3

Result: 

NG 

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