DTC U0515-41: Invalid Data Received From Remote Function Actuation General Checksum Failure: Procedure

VERIFY MAIN BODY ECU DTCS AGAIN

Clear the DTC for the main body ECU using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Clear DTCs
Retrieve the main body ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Trouble Codes

Is the same DTC displayed?

Result

Result
Yes
No

Result: 2

See step 5

Result: 1

Yes

See step 2

VERIFY ENGINE STOP AND START ECU DTCS

Retrieve the engine stop and start ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Smart Start Unit > Trouble Codes

Are any other DTCs displayed?

Result

Result
Yes
No

Result: 2

Yes

REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING.

Refer to DIAGNOSTIC TROUBLE CODE CHART

Result: 1

See step 3

VERIFY IF MALFUNCTIONING LOCATION IS ENGINE STOP AND START ECU DEPENDING ON REPEATABILITY

Clear the DTC for the main body ECU using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Clear DTCs
Retrieve the main body ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Trouble Codes

Is the same DTC displayed?

Result

Result
Yes
No

Result: 2

Yes

See step 7

Result: 1

See step 5

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

Clear the DTC for the main body ECU using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Clear DTCs
Retrieve the main body ECU DTCs using the Techstream.
Refer to DTC CHECK / CLEAR

Body Electrical > Body Control Module > Trouble Codes

Is the same DTC displayed?

Result

Result
Yes
No

Result: 2

Yes

See step 6

Result: 1

See step 5

VERIFY IF OTHER DTCS DISPLAYED

Are any other DTCs displayed?

Result

Result
Yes
No

Result: 1

Yes

REPAIR OR REPLACE THE MALFUNCTIONING PART ACCORDING TO THE APPLICABLE DTC TROUBLESHOOTING.

Refer to DIAGNOSTIC TROUBLE CODE CHART

Result: 2

DTC TROUBLESHOOTING COMPLETED.

REPEAT THE INSPECTION FROM STEP 1.

If the malfunction recurs, replace the main body ECU.
Refer to REMOVAL

Go to the next step.

Result

Proceed to
NEXT

Result: 1

See step 5

REPLACE THE ENGINE STOP AND START ECU, THEN GO TO THE NEXT STEP.

Refer to INSTALLATION

Result

Proceed to
NEXT

Result: 1

See step 4