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

id0902e5356600

DTC	Security light flashing pattern		14	Key ID number error
	M-MDS display	Instrument cluster	B10D7:81
		PCM	P1260:00
DETECTION CONDITION				•  Instrument cluster cannot read key ID number data normally.
POSSIBLE CAUSE				•  Coil antenna connector or terminals malfunction •  Instrument cluster connector or terminals malfunction •  Transponder (key) malfunction •  Coil antenna malfunction •  Instrument cluster malfunction •  PCM 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. ―  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 ac9uuw00001496

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	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 6.
		No	Go to the next step.
2	INSPECT INSTRUMENT CLUSTER CONNECTOR AND TERMINALS •  Disconnect the instrument cluster 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 6.
		No	Go to the next step.
3	VERIFY WHETHER THERE IS A VALID KEY •  Are there any valid keys which can start the engine other than the cause of the displayed DTC?	Yes	Go to the next step.
		No	Program an additional key referring to the immobilizer system-related parts programming, then go to the next step. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].)
4	VERIFY COIL ANTENNA MALFUNCTION •  Switch the ignition to ON using the valid key other than the cause of the displayed DTC. •  Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Is the same DTC present?	Yes	Replace the coil antenna, then go to the next step. (See COIL ANTENNA REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM].)
		No	Dispose of the malfunctioning key and program a new key if necessary, then go to Step 7. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].) Note •  To start the engine, two or more programmed keys are necessary.
5	VERIFY INSTRUMENT CLUSTER MALFUNCTION •  Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Is the same DTC present?	Yes	Replace the instrument cluster and program the immobilizer system-related parts. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM].) Go to the next step.
		No	Go to Step 7.
6	VERIFY TROUBLESHOOTING COMPLETED •  Clear the DTC from the instrument cluster using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) •  Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].) (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI].) (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
		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 (KEYLESS ENTRY SYSTEM)].)
		No	DTC troubleshooting completed.