DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [08/2019 - ]: Procedure

1. Using the Techstream, check for SFI system DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

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

Result: 

B 

GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: System Select / Health Check.
5. Check DTCs.
6. Turn the engine switch off.

   OK

   DTCs indicating a vehicle information mismatch with 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  COMPONENTS [09/2015 - ] 

Result: 

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Pre-Collision System / Data List.
5. 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)	Vehicle information (Conv/HV)	Unknown / Conv / HV	Conv: Conventional HV: Hybrid vehicle	-

   Body Electrical > Pre-Collision System > Data List 

   Tester Display
   Vehicle Information (Conv/HV)

   HINT: 

   • If the vehicle information stored in the forward recognition camera is different than the actual vehicle specifications, the vehicle information stored in the forward recognition camera may be incorrect. Check for DTCs and replace the forward recognition camera if necessary.
   • If the vehicle information stored in the forward recognition camera matches the actual vehicle specifications, the installed ECM is incompatible. Replace the ECM with a correct one.

   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  COMPONENTS [08/2019 - ] 

Result: 

B 

REPLACE ECM. Refer to  COMPONENTS [09/2015 - ]