DTC B27C5-87: Outside Luggage Compartment (Back Door) BLE Antenna Missing Message [10/2023 - ]: Procedure

1. Check that the connectors are properly connected to the digital key ECU assembly and BLE digital key receiver assembly.

   OK

   Connectors are properly connected.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CONNECT CONNECTORS PROPERLY 

Result: 

OK 

See step  2

Pre-procedure1

1. Disconnect the L301 digital key ECU assembly connector.
2. Disconnect the L280 BLE digital key receiver assembly connector.

   Procedure1

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L301-12 (PWO1) - L280-1 (PWO1)	Always	Below 1 Ω
   L301-12 (PWO1) or L280-1 (PWO1) - Other terminals and body ground	Always	10 kΩ or higher
   L301-20 (LIN3) - L280-2 (LIN3)	Always	Below 1 Ω
   L301-20 (LIN3) or L280-2 (LIN3) - Other terminals and body ground	Always	10 kΩ or higher
   L280-3 (GND) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. Connect the L301 digital key ECU assembly connector.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

Pre-procedure1

1. Replace the BLE digital key receiver assembly with a new one or used one.

   HINT: 

   Refer to REMOVAL [10/2023 - ]

2. Clear the DTCs.

   Body Electrical > Smart Access > Clear DTCs 

   Procedure1

3. Check for DTCs.

   Body Electrical > Smart Access > Trouble Codes 

   Result

   Result	Proceed to
   B27C5-87 is not output	A
   B27C5-87 is output	B

   Post-procedure1

4. None

Result: 

A 

END (BLE DIGITAL KEY RECEIVER ASSEMBLY WAS DEFECTIVE) 

Result: 

B 

REPLACE DIGITAL KEY ECU ASSEMBLY. Refer to  REMOVAL [10/2023 - ]