RM38N0EC _58 Vehicle Interior _111832 THEFT DETERRENT / KEYLESS ENTRY _0585416 DIGITAL KEY SYSTEM C

THEFT DETERRENT / KEYLESS ENTRY DIGITAL KEY SYSTEM B27C487 Front Passenger Side BLE Antenna Missing Message

DESCRIPTION

This DTC is stored when a LIN communication malfunction between the digital key ECU assembly and front door outside handle assembly (for front passenger door) is detected.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Priority	Note
B27C487	Front Passenger Side BLE Antenna Missing Message	LIN communication malfunction between the digital key ECU assembly and front door outside handle assembly (for front passenger door)	· Digital key ECU assembly · Front door outside handle assembly (for front passenger door) · Wire harness or connector	Entry&Start	A	DTC Output Confirmation Operation: Any time

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
Digital key is inside the front passenger seat digital key detection range Front passenger door entry function does not operate	-

WIRING DIAGRAM

0.156,2.563 0.75,2.729 0.594,0.167 10 false L53 0.156,2.729 2.167,2.917 2.01,0.188 10 false Digital Key ECU Assembly 0.885,3.396 2.823,3.646 1.938,0.25 10 false : LIN Communication Line 1.719,0.594 2.406,0.823 0.688,0.229 10 false 12 5.365,1.135 6.052,1.365 0.688,0.229 10 false 2 5.208,2.573 5.896,2.802 0.688,0.229 10 false G25 5.198,2.74 7.115,3.333 1.917,0.594 10 false Front Door Outside Handle Assembly (for Front Passenger Door) 5.552,0.708 6.24,0.938 0.688,0.229 10 false PWO1 5.552,1.292 6.24,1.521 0.688,0.229 10 false LIN2 5.552,1.865 5.948,2.063 0.396,0.198 10 false GND 5.375,1.771 5.708,1.969 0.333,0.198 10 false 3 5.354,0.594 6.042,0.823 0.688,0.229 10 false 1 1.323,1.302 2.01,1.531 0.688,0.229 10 false LIN2 1.208,0.708 1.896,0.938 0.688,0.229 10 false PWO1 1.698,1.125 2.385,1.354 0.688,0.229 10 false 15

CAUTION / NOTICE / HINT

NOTICE:: ·

Before replacing the digital key ECU assembly or front door outside handle assembly (for front passenger door), refer to Service Bulletin.

·

Cancel power saving mode before performing troubleshooting.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>DIGITAL KEY SYSTEM>PRECAUTION202303,999999,_58,_111832,_0585416,RM1000000029K3M,

PROCEDURE

1.CHECK CONNECTOR CONNECTION

Check that the connectors are properly connected to the digital key ECU assembly and front door outside handle assembly (for front passenger door).

OK:: Connectors are properly connected.

Result:

Proceed to
OK
NG

2.CHECK HARNESS AND CONNECTOR (DIGITAL KEY ECU ASSEMBLY - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) - BODY GROUND)

CONNECT CONNECTORS PROPERLY

2.CHECK HARNESS AND CONNECTOR (DIGITAL KEY ECU ASSEMBLY - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) - BODY GROUND)

Pre-procedure1

Disconnect the L53 digital key ECU assembly connector.

Disconnect the G25 front door outside handle assembly (for front passenger door) connector.

Procedure1

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
Click Location & Routing(L53,G25)Location & Routingewd_type=routing;type=c,c;code=L53,G25 Click Connector(L53)Body>No. 2 Floor Wire>Digital Key ECU Assemblyewd_type=component;type=c;code=L53;pinno=12,15 Click Connector(G25)Body>Front Door Wire RH / Front Door Wire LH>Electrical Key Antenna (Front Door Outside Handle Assembly RH)ewd_type=component;type=c;code=G25;pinno=1,2,3
L53-12 (PWO1) - G25-1 (PWO1)	Always	Below 1 Ω
L53-12 (PWO1) or G25-1 (PWO1) - Other terminals and body ground	Always	10 kΩ or higher
L53-15 (LIN2) - G25-2 (LIN2)	Always	Below 1 Ω
L53-15 (LIN2) or G25-2 (LIN2) - Other terminals and body ground	Always	10 kΩ or higher
G25-3 (GND) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

Post-procedure1

Connect the L53 digital key ECU assembly connector.

3.REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)

Replace the front door outside handle assembly (for front passenger door) with a new one or used one.

HINT:: Click hereVehicle Exterior>DOOR / HATCH>FRONT DOOR>DISASSEMBLY202303,202406,_59,_111831,_0501457,RM100000002B0QO,202406,202409,_59,_111831,_0501457,RM100000002MT7N,202409,999999,_59,_111831,_0501457,RM100000002OO32,

Result:

Proceed to
NEXT

4.CLEAR DTC

Clear the DTCs.

Body Electrical > Entry&Start > Clear DTCs: 50002 440

Result:

Proceed to
NEXT

5.CHECK DTC

Check for DTCs.

Body Electrical > Entry&Start > Trouble Codes: 50001 440

Result:

Result	Proceed to
B27C487 is not output	A
B27C487 is output	B

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR) WAS DEFECTIVE)

REPLACE DIGITAL KEY ECU ASSEMBLY