RM3660EC _58 Vehicle Interior _080747 THEFT DETERRENT / KEYLESS ENTRY _0600575 DIGITAL KEY SYSTEM C

THEFT DETERRENT / KEYLESS ENTRY  DIGITAL KEY SYSTEM  B27C687  Front Floor BLE Antenna Missing Message  


DESCRIPTION

This DTC is stored when a LIN communication malfunction between the digital key ECU assembly and BLE indoor digital key receiver assembly is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
B27C687 Front Floor BLE Antenna Missing Message LIN communication malfunction between the digital key ECU assembly and BLE indoor digital key receiver assembly
·

Digital key ECU assembly

·

BLE indoor digital key receiver assembly

·

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
The digital key is on the center console near the vehicle interior BLE digital key receiver.

Power source mode does not change


-

WIRING DIAGRAM

B621853E83
0.156,2.563 0.75,2.729 0.594,0.167 10 false O175 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 4 5.365,1.135 6.052,1.365 0.688,0.229 10 false 2 5.042,2.573 5.729,2.802 0.688,0.229 10 false I201 5.042,2.74 7.021,3.26 1.979,0.521 10 false BLE Indoor Digital Key Receiver Assembly 5.552,0.708 6.24,0.938 0.688,0.229 10 false PWI1 5.552,1.292 6.24,1.521 0.688,0.229 10 false LIN4 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 LIN4 1.281,0.708 1.969,0.938 0.688,0.229 10 false PWI1 1.698,1.135 2.385,1.365 0.688,0.229 10 false 21

CAUTION / NOTICE / HINT

NOTICE:
·

Before replacing the digital key ECU assembly or BLE indoor digital key receiver assembly, 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 BLE indoor digital key receiver assembly.

OK:

Connectors are properly connected.


Result:
Proceed to
OK
NG




OK

2.CHECK HARNESS AND CONNECTOR (DIGITAL KEY ECU ASSEMBLY - BLE INDOOR DIGITAL KEY RECEIVER ASSEMBLY - BODY GROUND)

NG

CONNECT CONNECTORS PROPERLY

2.CHECK HARNESS AND CONNECTOR (DIGITAL KEY ECU ASSEMBLY - BLE INDOOR DIGITAL KEY RECEIVER ASSEMBLY - BODY GROUND)

Pre-procedure1

a.

Disconnect the O175 digital key ECU assembly connector.


b.

Disconnect the I201 BLE indoor digital key receiver assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O175-4 (PWI1) - I201-1 (PWI1) Always Below 1 Ω
O175-4 (PWI1) or I201-1 (PWI1) - Other terminals and body ground Always 10 kΩ or higher
O175-21 (LIN4) - I201-2 (LIN4) Always Below 1 Ω
O175-21 (LIN4) or I201-2 (LIN4) - Other terminals and body ground Always 10 kΩ or higher
I201-3 (GND) - Body ground Always Below 1 Ω


Result:
Proceed to
OK
NG



Post-procedure1

d.

Connect the O175 digital key ECU assembly connector.



OK

3.REPLACE BLE INDOOR DIGITAL KEY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.REPLACE BLE INDOOR DIGITAL KEY RECEIVER ASSEMBLY
a.

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

HINT:

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>DIGITAL KEY RECEIVER (for Front Floor)>REMOVAL


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
B27C687 is not output A
B27C687 is output B




A

END (BLE INDOOR DIGITAL KEY RECEIVER ASSEMBLY WAS DEFECTIVE)

B

REPLACE DIGITAL KEY ECU ASSEMBLY