SECURITY LIGHT: 14, DTC: B10D7:81/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)]

id0902e3356600

DTC	Security light flashing pattern		14	Keyless control module cannot read key ID number data normally
	M-MDS display	Keyless control module	B10D7:81
		PCM	P1260:00
POSSIBLE CAUSE				•  Coil antenna installation malfunction •  Transponder (key) malfunction •  If any of the following items are touching or near key head, signal communication between key and vehicle is negatively affected, resulting in engine not starting. ―   am2zzw00006145 ―  Spare keys ―  Keys for other vehicles equipped with an immobilizer system ―  Any metallic object ―  Any electronic device, or any credit or other card with magnetic strips •  Coil antenna malfunction •  Keyless control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY COIL ANTENNA CORRECTLY INSTALLED •  Verify the installation condition of the coil antenna. •  Is the coil antenna correctly installed? (Is the connector not completely connected?)	Yes	Go to the next step.
		No	Install the coil antenna correctly, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
2	VERIFY WHETHER KEY IS VALID OR NOT •  Are there any keys with which the engine can be started, other than the key that is a cause of the displayed DTC?	Yes	Go to Step 4.
		No	Go to the next step.
3	VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL ANTENNA •  Program an additional key. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS AND START SYSTEM].) •  Using the programmed key, turn the ignition switch to the ON position. •  Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Is the following DTC present? ―  Keyless control module: B10D7:81 ―  PCM: P1260:00	Yes	Replace the coil antenna, then go to Step 5. (See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
		No	Dispose of the malfunctioning key. Program a new key if necessary. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS AND START SYSTEM].) Go to Step 7.
4	VERIFY WHETHER MALFUNCTION IS IN KEY OR COIL ANTENNA •  Using the programmed key, turn the ignition switch to the ON position. •  Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Is the following DTC present? ―  Keyless control module: B10D7:81 ―  PCM: P1260:00	Yes	Replace the coil antenna, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].)
		No	Dispose of the malfunctioning key. Program a new key if necessary. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS AND START SYSTEM].) Go to Step 7.
5	PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS KEYLESS CONTROL MODULE •  Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Is the following DTC present? ―  Keyless control module: B10D7:81 ―  PCM: P1260:00	Yes	Replace the keyless control module and program the immobilizer system-related parts. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS AND START SYSTEM].) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS AND START SYSTEM].) Go to the next step.
		No	Go to Step 7.
6	VERIFY TROUBLESHOOTING COMPLETED •  Clear DTCs using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Perform the immobilizer system DTC inspection using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)].) •  Is the following DTC present? ―  Keyless control module: B10D7:81 ―  PCM: P1260:00	Yes	Inspect the DTC P1260:00. (See DTC P1260:00 [MZR 1.3, MZR 1.5].) (See MZ-CD 1.6.)
		No	Go to the next step.
7	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 AND START SYSTEM)].)
		No	DTC troubleshooting completed.