DTC B277A-96: Wireless Starter Component Internal Failure [12/2023 - ]: Procedure

1. Check for CAN communication system DTCs.

   HINT: 

   for PHEV Model: Refer to DIAGNOSIS SYSTEM [12/2023 - ]

   for 1Motor-HEV Model: Refer to DIAGNOSIS SYSTEM [09/2023 - ]

   OK

   CAN communication DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) 

for PHEV Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ]

for 1Motor-HEV Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2023 - ]

Result: 

OK 

See step  2

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   w/ Genuine Remote Engine Start	A
   for Remote Connect Compatible Type	B

Result: 

B 

GO TO TELEMATICS SYSTEM (Remote Engine Starter does not Operate). Refer to  Remote Engine Starter does not Operate [09/2023 - ] 

Result: 

A 

See step  3

1. Register the remote engine starter ID.

   OK

   Registration can be completed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [12/2023 - ] 

Result: 

OK 

See step  4

1. Check the remote engine starter function.

   OK

   Remote engine starter functions operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (REMOTE ENGINE STARTER ID WAS NOT REGISTERED) 

Result: 

NG 

REPLACE REMOTE ENGINE START ECU