DTC B2780: Push Switch / Key Unlock Warning Switch Malfunction [02/2019 - ]: Procedure

1. Remove the unlock warning switch assembly.

   Refer to REMOVAL [11/2018 - ]

2. Inspect the unlock warning switch assembly.

   Refer to INSPECTION [11/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE UNLOCK WARNING SWITCH ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

Result: 

OK 

See step  2

1. Disconnect the G52 transponder key ECU assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G29-1 - G52-5 (KSW)	Always	Below 1 Ω
   G29-2 - Body ground	Always	Below 1 Ω
   G29-1 or G52-5 (KSW) - Other terminals and body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE TRANSPONDER KEY ECU ASSEMBLY. Refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021]  , or refer to  REMOVAL [12/2021 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023]  , or refer to  REMOVAL [10/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR