DTC B227D: Keyless Access with Push Button Start [11/2021 - ]: Procedure

1. Turn the ignition switch to ON.
2. Using the GTS, perform the clear DTCs of [Keyless Access with Push Button Start(Power Supply)] and [Keyless Access with Push Button Start(Collation)].
   • Keyless Access with Push Button Start(Power Supply)
   • Keyless Access with Push Button Start(Collation)
3. Turn the ignition switch to OFF.
4. Disconnect and reconnect the smart key ECU assembly connector.
5. Turn the ignition switch to ON.
6. Using the GTS, read the DTCs of [Keyless Access with Push Button Start(Power Supply)] and [Keyless Access with Push Button Start(Collation)].
   • Keyless Access with Push Button Start(Power Supply)
   • Keyless Access with Push Button Start(Collation)

   Is DTC B227D displayed? (Current malfunction)

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.) HINT:  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

END 

1. Even if DTC is displayed, the circuit has returned to a normal condition at this time.
2. Reproduce the failure, and then perform the diagnosis again.

   HINT: 

   In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.