Security Light: 11, DTC: B10D9:87/P1260:00 [Immobilizer System (Advanced Keyless Entry And Push Button Start System)]

DTC	Security light flashing pattern		11	Communication error with coil antenna
	M-MDS display	Keyless control module	B10D9:87
	M-MDS display	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. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). 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)] ).
1		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.
2		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.
3		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.
4		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.
5		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.
6		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. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). 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 ).
7		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. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). (See AFTER REPAIR PROCEDURE [LF, L5] ). (See AFTER REPAIR PROCEDURE [L3 WITH TC] ). Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] ). 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 ).
8		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)] ).
9		No	DTC troubleshooting completed.