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


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DTC

Security light flashing pattern

11

Communication error to coil antenna

M-MDS display

Keyless control module

B10D9:87

PCM

P1260:00

DETECTION CONDITION
•  No detected communication with coil antenna.
POSSIBLE CAUSE
•  Coil antenna connector or terminals malfunction
•  Open circuit in wiring harness between coil antenna terminal F and body ground
•  Keyless control module connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  Coil antenna terminal B—Keyless control module terminal 4Q
―  Coil antenna terminal C—Keyless control module terminal 2D
―  Coil antenna terminal D—Keyless control module terminal 2B
•  Open circuit in wiring harness between the following terminals:
―  Coil antenna terminal B—Keyless control module terminal 4Q
―  Coil antenna terminal C—Keyless control module terminal 2D
―  Coil antenna terminal D—Keyless control module terminal 2B
•  Coil antenna malfunction
•  Keyless control module malfunction


System Wiring Diagram

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Diagnostic Procedure

STEP

INSPECTION

ACTION

1
VERIFY DTCs
•  Clear the DTC from the keyless control module using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the DTC B10E6:11 present?
Yes
Perform the DTC B10E6:11 inspection.
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 coil antenna terminal F (wiring harness-side) and body ground.
•  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 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 B
―  Coil antenna terminal C
―  Coil antenna terminal D
•  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 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 B—Keyless control module terminal 4Q
―  Coil antenna terminal C—Keyless control module terminal 2D
―  Coil antenna terminal D—Keyless control module terminal 2B
•  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 all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the same DTC present?
Yes
Replace the coil antenna, then go to the next step.
No
Go to Step 9.
8
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC from the keyless control module using the M-MDS.
•  Verify the immobilizer system DTC using the M-MDS.
•  Is the same DTC present?
Yes
Replace the keyless control module and program the immobilizer system-related parts.
Go to the next step.
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.
No
DTC troubleshooting completed.