SECURITY LIGHT: 11, DTC: B10D9:87/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)]

id09021d353000

DTC

Security light flashing pattern

11

Communication error with coil antenna

M-MDS display

Keyless control module

B10D9:87

PCM

P1260:00
DETECTION CONDITION
•  Keyless control module cannot communicate with coil antenna.
POSSIBLE CAUSE
•  Coil antenna connector or terminals malfunction
•  Open circuit in wiring harness between the following terminals:
―  Coil antenna terminal C—Body ground
•  Keyless control module connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  Coil antenna terminal D—Keyless control module terminal 3M
―  Coil antenna terminal B—Keyless control module terminal 2G
―  Coil antenna terminal A—Keyless control module terminal 2H
•  Open circuit in wiring harness between the following terminals:
―  Coil antenna terminal D—Keyless control module terminal 3M
―  Coil antenna terminal B—Keyless control module terminal 2G
―  Coil antenna terminal A—Keyless control module terminal 2H
•  Coil antenna malfunction
•  Keyless control module malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM IMMOBILIZER SYSTEM DTC
•  Clear the DTC from the keyless control module and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10E6:11
Yes
Go to the applicable DTC inspection.
(See SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:11/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)
No
Go to the next step.
2
INSPECT COIL ANTENNA CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the coil antenna connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 8.
No
Go to the next step.
3
INSPECT COIL ANTENNA GROUND CIRCUIT FOR OPEN CIRCUIT
•  Coil antenna connector is disconnected.
•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:
―  Coil antenna terminal C
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 8.
4
INSPECT KEYLESS CONTROL MODULE CONNECTOR AND TERMINALS
•  Disconnect the keyless control module connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 8.
No
Go to the next step.
5
INSPECT COIL ANTENNA COMMUNICATION CIRCUIT FOR SHORT TO GROUND
•  Coil antenna and keyless control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―   Coil antenna terminal D
―   Coil antenna terminal B
―   Coil antenna terminal A
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to ground, then go to Step 8.
No
Go to the next step.
6
INSPECT COIL ANTENNA COMMUNICATION CIRCUIT FOR OPEN CIRCUIT
•  Coil antenna and keyless control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
―   Coil antenna terminal D—Instrument cluster terminal 3M
―   Coil antenna terminal B—Instrument cluster terminal 2G
―   Coil antenna terminal A—Instrument cluster terminal 2H
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 8.
7
VERIFY COIL ANTENNA MALFUNCTION
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10D9:87
―  PCM: P1260:00
Yes
Replace the coil antenna, then go to the next step.
(See COIL ANTENNA REMOVAL/INSTALLATION.)
No
Go to Step 9.
8
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect the disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module and PCM using the M-MDS.
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10D9:87
―  PCM: P1260:00
Yes
Replace the keyless control module, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
9
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)
No
DTC troubleshooting completed.