DTC B11FD:1F [ADVANCED KEYLESS AND START SYSTEM]

id0902e1388500

Detection Condition

• Cannot receive signal correctly from keyless antenna (exterior, LF)

Possible Causes

• Open or short circuit in wiring harness between outer handle (LF) and keyless control module

• Keyless antenna (exterior, LF) malfunction

• Keyless control module malfunction

System Wiring Diagram

am2zzw00000892

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT OUTER HANDLE (LF) CONNECTOR

•  Turn the ignition switch to the LOCK position.

•  Disconnect the negative battery cable.

•  Disconnect the outer handle (LF) connector.

•  Inspect the outer handle (LF) connector. (Corrosion, damage, and disconnected pins)

•  Are the connector and terminals normal?

Yes

Go to the next step.

No

Repair/replace the outer handle (LF) connector or terminal.

2

INSPECT KEYLESS CONTROL MODULE CONNECTOR

•  Disconnect the keyless control module connector.

•  Inspect the keyless control module connector. (Corrosion, damage, and disconnected pins)

•  Are the connector and terminals normal?

Yes

Go to the next step.

No

Repair/replace the keyless control module connector or terminal.

3

ISPECT WIRING HARNESS BETWEEN OUTER HANDLE (LF) AND KEYLESS CONTROL MODULE

•  Inspect the wiring harness between outer handle (LF) terminal B and keyless control module terminal 3F, and outer handle (LF) terminal E and keyless control module terminal 3AB for the following:

―  Short to ground

―  Short to power supply

―  Open circuit

•  Is the wiring harness normal?

Yes

Go to the next step.

No

Repair or replace the wiring harness between the outer handle (LF) and the keyless control module.

4

VERIFY DTCs

•  Reconnect the disconnected connectors.

•  Connect the negative battery cable.

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].)

•  Verify DTCs using the M-MDS.
(See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

•  Is DTC B11FD:1F displayed?

Yes

Replace the keyless antenna (exterior, LF), then go to the next step.

(See KEYLESS ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)

No

DTC troubleshooting completed.

5

VERIFY DTCs

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].)

•  Verify DTCs using the M-MDS.
(See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].)

•  Is DTC B11FD:1F displayed again?

Yes

Replace the keyless control module.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	INSPECT OUTER HANDLE (LF) CONNECTOR • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the outer handle (LF) connector. • Inspect the outer handle (LF) connector. (Corrosion, damage, and disconnected pins) • Are the connector and terminals normal?	Yes	Go to the next step.
1		No	Repair/replace the outer handle (LF) connector or terminal.
2	INSPECT KEYLESS CONTROL MODULE CONNECTOR • Disconnect the keyless control module connector. • Inspect the keyless control module connector. (Corrosion, damage, and disconnected pins) • Are the connector and terminals normal?	Yes	Go to the next step.
2		No	Repair/replace the keyless control module connector or terminal.
3	ISPECT WIRING HARNESS BETWEEN OUTER HANDLE (LF) AND KEYLESS CONTROL MODULE • Inspect the wiring harness between outer handle (LF) terminal B and keyless control module terminal 3F, and outer handle (LF) terminal E and keyless control module terminal 3AB for the following: ― Short to ground ― Short to power supply ― Open circuit • Is the wiring harness normal?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness between the outer handle (LF) and the keyless control module.
4	VERIFY DTCs • Reconnect the disconnected connectors. • Connect the negative battery cable. • Clear DTCs using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is DTC B11FD:1F displayed?	Yes	Replace the keyless antenna (exterior, LF), then go to the next step. (See KEYLESS ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
4		No	DTC troubleshooting completed.
5	VERIFY DTCs • Clear DTCs using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS AND START SYSTEM].) • Verify DTCs using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS AND START SYSTEM].) • Is DTC B11FD:1F displayed again?	Yes	Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
5		No	DTC troubleshooting completed.