DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid/Incompatible Software Component [12/2021 - ]: Procedure

1. Check vehicle condition.

   Result

   Result	Proceed to
   for HV Model	A
   for Gasoline Model	B

Result: 

B 

See step  5

Result: 

A 

See step  2

1. Check for DTCs.

   Powertrain > Hybrid Control > Trouble Codes 

   HINT: 

   If the front camera system outputs U0300-51 or U0300-57, hybrid control system DTCs may also have been output. Check the hybrid control system first.

   OK

   Hybrid control system DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO HYBRID CONTROL SYSTEM 

for AWD with NICKEL METAL HYDRIDE BATTERY:

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

for LITHIUM-ION BATTERY:

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result: 

OK 

See step  3

1. Check for DTCs.

   OK

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

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

Refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result: 

OK 

See step  4

1. Using the Techstream, read the Data List.

   Chassis > Front Recognition Camera > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   HV/EV Equipped Information	Vehicle information (engine) stored by forward recognition camera	Non-HV or HV/EV	Non-HV: Gasoline Model HV/EV: HV Model	-

   Chassis > Front Recognition Camera > Data List 

   Tester Display
   HV/EV Equipped 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 assembly with different specifications may be installed. Therefore, replace the hybrid vehicle control ECU assembly.

   Result

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

Result: 

A 

REPLACE FORWARD RECOGNITION CAMERA 

Refer to REMOVAL [12/2021 - ]

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

Refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

1. Check for DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO SFI SYSTEM 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 10/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2023 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result: 

A 

See step  6

1. Using the Techstream, perform a health check.

   OK

   DTCs indicating a vehicle information mismatch with that of the ECM are not output by any ECU other than the forward recognition camera.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM 

Refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result: 

OK 

See step  7

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

   Chassis > Front Recognition Camera > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   HV/EV Equipped Information	Vehicle information (powertrain type) stored in forward recognition camera	Non-HV / HV/EV	Non-HV: Conventional vehicle HV/EV: Hybrid vehicle	-

   Chassis > Front Recognition Camera > Data List 

   Tester Display
   HV/EV Equipped Information

   HINT: 

   • If the vehicle information stored in the forward recognition camera is different from the actual vehicle specifications, the vehicle information stored in the forward recognition camera may be incorrect. Replace the forward recognition camera.
   • If the vehicle information stored in the forward recognition camera matches the actual vehicle specifications, the installed ECM is incompatible. Replace the ECM.

   Result

   Result	Proceed to
   Vehicle information stored in forward recognition camera and actual vehicle specifications do not match	A
   Vehicle information stored in forward recognition camera and actual vehicle specifications match	B

Result: 

A 

REPLACE FORWARD RECOGNITION CAMERA 

Refer to REMOVAL [12/2021 - ]

Result: 

B 

REPLACE ECM 

Refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]