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. Choose the model to be inspected.

   Result

   Result	Proceed to
   for Gasoline Model	A
   for HEV Model	B

Result: 

B 

See step  5

Result: 

A 

See step  2

1. Check for DTCs.

   Powertrain > Engine > Trouble Codes 

   HINT: 

   If DTC U0300-51 or U0300-57 is output, inspect the SFI system first as an SFI system DTC may be stored.

   Result

   Result	Proceed to
   SFI system DTC is not output	A
   SFI system DTC is output	B

Result: 

B 

GO TO SFI SYSTEM 

for A25A-FKS: Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2022 - 03/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2023 - 03/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2024 - ]

for T24A-FTS: Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2023 - 03/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2024 - ]

Result: 

A 

See step  3

1. Using the GTS, perform a health check.

   OK

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

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Result: 

B 

REPLACE ECM 

for A25A-FKS: Refer to REMOVAL [11/2021 - ]

for T24A-FTS: Refer to REMOVAL [11/2021 - ]

Result: 

A 

See step  4

1. Using the GTS, read the Data List.

   Chassis > Front Recognition Camera > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Powertrain Information	Powertrain information	Conventional, SS, HV, PHV, EV, 1MHV, FCV or Default Value	Conventional: Conventional vehicle SS: w/ Stop and start vehicle HV: Hybrid vehicle PHV: PHV vehicle EV: EV vehicle 1MHV: 1MHV vehicle FCV: FCV vehicle Default Value: Vehicle information not confirmed	-

   Chassis > Front Recognition Camera > Data List 

   Tester Display
   Powertrain Information

   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
   Vehicle information stored in the forward recognition camera and actual vehicle specifications do not match Not confirmed is displayed	A
   Vehicle specification information stored in forward recognition camera and actual vehicle specifications match	B

Result: 

A 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPLACE ECM 

for A25A-FKS: Refer to REMOVAL [11/2021 - ]

for T24A-FTS: Refer to REMOVAL [11/2021 - ]

1. Check for DTCs.

   Powertrain > Hybrid Control > Trouble Codes 

   HINT: 

   If DTC U0300-51 or U0300-57 is output, inspect the hybrid control system first as an hybrid control system DTC may be stored.

   Result

   Result	Proceed to
   Hybrid control system DTC is not output	A
   Hybrid control system DTC is output	B

Result: 

B 

GO TO HYBRID CONTROL SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2024]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2024 - ] 

Result: 

A 

See step  6

1. Using the GTS, perform a health check.

   OK

   ECUs other than the forward recognition camera do not output specification information mismatch DTCs related to the hybrid vehicle control ECU.

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [11/2021 - ] 

Result: 

A 

See step  7

1. Using the GTS, read the Data List.

   Chassis > Front Recognition Camera > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Powertrain Information	Powertrain information	Conventional, SS, HV, PHV, EV, 1MHV, FCV or Default Value	Conventional: Conventional vehicle SS: w/ Stop and start vehicle HV: Hybrid vehicle PHV: PHV vehicle EV: EV vehicle 1MHV: 1MHV vehicle FCV: FCV vehicle Default Value: Vehicle information not confirmed	-

   Chassis > Front Recognition Camera > Data List 

   Tester Display
   Powertrain Information

   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, a hybrid vehicle control ECU with different specifications may be installed. Therefore, replace the hybrid vehicle control ECU.

   Result

   Result	Proceed to
   Vehicle information stored in the forward recognition camera and actual vehicle specifications do not match Not confirmed is displayed	A
   Vehicle specification information stored in forward recognition camera and actual vehicle specifications match	B

Result: 

A 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [11/2021 - ]