RM36D0EC _58 Vehicle Interior _083094 THEFT DETERRENT / KEYLESS ENTRY _0678553 DIGITAL KEY SYSTEM C

THEFT DETERRENT / KEYLESS ENTRY  DIGITAL KEY SYSTEM  B27C387  Driver 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 LH is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
B27C387 Driver Side BLE Antenna Missing Message LIN communication malfunction between the digital key ECU assembly and front door outside handle assembly LH
·

Digital key ECU assembly

·

Front door outside handle assembly LH

·

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 driver seat digital key detection range

Driver door entry function does not operate


-

WIRING DIAGRAM

B686606E54
0.156,2.563 0.75,2.729 0.594,0.167 10 false N68 0.156,2.729 2.167,2.917 2.01,0.188 10 false Digital Key ECU Assembly 0.885,3.406 2.823,3.656 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 5.396,2.573 6.167,2.833 0.771,0.26 10 false J18 5.385,2.74 7.031,3.115 1.646,0.375 10 false Front Door Outside Handle Assembly LH 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 LIN1 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 LIN1 1.198,0.708 1.885,0.938 0.688,0.229 10 false PWO1 1.698,1.135 2.385,1.365 0.688,0.229 10 false 14

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the digital key ECU assembly or front door outside handle assembly LH, refer to Service Bulletin.

·

Cancel power saving mode before performing troubleshooting.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>DIGITAL KEY SYSTEM>PRECAUTION



PROCEDURE

1.CHECK CONNECTOR CONNECTION
a.

Check that the connectors are properly connected to the digital key ECU assembly and front door outside handle assembly LH.

OK:

Connectors are properly connected.



Result:
Proceed to
OK
NG



OK

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

NG

CONNECT CONNECTORS PROPERLY

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

Pre-procedure1

a.

Disconnect the N68 digital key ECU assembly connector.


b.

Disconnect the J18 front door outside handle assembly LH connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N68-12 (PWO1) - J18-1 (PWO1) Always Below 1 Ω
N68-12 (PWO1) or J18-1 (PWO1) - Other terminals and body ground Always 10 kΩ or higher
N68-14 (LIN1) - J18-2 (LIN1) Always Below 1 Ω
N68-14 (LIN1) or J18-2 (LIN1) - Other terminals and body ground Always 10 kΩ or higher
J18-3 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG


Post-procedure1

d.

Connect the N68 digital key ECU assembly connector.



OK

3.REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH
a.

Replace the front door outside handle assembly LH with a new one or used one.

HINT:

Click hereVehicle Exterior>DOOR / HATCH>FRONT DOOR>DISASSEMBLY



Result:
Proceed to
NEXT



NEXT

4.CLEAR DTC
4.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Entry&Start > Clear DTCs
50002 440

Result:
Proceed to
NEXT



NEXT

5.CHECK DTC
5.CHECK DTC
a.

Check for DTCs.

Body Electrical > Entry&Start > Trouble Codes
50001 440

Result:
Result Proceed to
B27C387 is not output A
B27C387 is output B



A

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH WAS DEFECTIVE)

B

REPLACE DIGITAL KEY ECU ASSEMBLY