SECURITY LIGHT: 15, DTC: B10D7:51/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)]

DTC	Security light flashing pattern	15	Unprogrammed key ID number
DETECTION CONDITION	• Keyless control module detects the unprogrammed key ID number.
POSSIBLE CAUSE	• Key malfunction ― No keys have been programmed after replacing keyless control module. ― Unprogrammed key is used. ― Programmed a ninth key. • PCM malfunction • Keyless control module malfunction

DTC

Security light flashing pattern

Unprogrammed key ID number

M-MDS display

Keyless control module

B10D7:51

PCM

P1260:00

DETECTION CONDITION

• Keyless control module detects the unprogrammed key ID number.

POSSIBLE CAUSE

• Key malfunction

― No keys have been programmed after replacing keyless control module.

― Unprogrammed key is used.

― Programmed a ninth key.

• PCM malfunction

• Keyless control module malfunction

STEP	INSPECTION	ACTION
1	VERIFY NUMBER OF PROGRAMMED KEYS • Perform the PID/data monitor inspection using the M-MDS to verify the number of programmed keys. (See PID/DATA MONITOR INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) ― NUM_KEYs (See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • Are eight keys programmed?	Yes	Erase the key ID number. Program an additional key referring to the immobilizer system-related parts programming, then go to the next step. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
No	Go to the next step.
2	VERIFY PCM MALFUNCTION • Switch the ignition to ON (engine off) using the valid key other than the cause of the displayed 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 [MZR 1.5, MZR 1.6].) (See AFTER REPAIR PROCEDURE [MZR 2.0, MZR 2.5].) (See AFTER REPAIR PROCEDURE [MZR 2.0 DISI i-stop].) (See AFTER REPAIR PROCEDURE [MZR 2.3 DISI Turbo].) (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].) (See AFTER REPAIR PROCEDURE [SKYACTIV-G 2.0].) • 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 same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].) (See PCM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].) (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) (See PCM REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].) (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
No	Dispose of the malfunctioning key and program a new key if necessary, then go to Step 4. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) Note • To start the engine, two or more programmed keys are necessary.
3	VERIFY TROUBLESHOOTING COMPLETED • 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 [MZR 1.5, MZR 1.6].) (See AFTER REPAIR PROCEDURE [MZR 2.0, MZR 2.5].) (See AFTER REPAIR PROCEDURE [MZR 2.0 DISI i-stop].) (See AFTER REPAIR PROCEDURE [MZR 2.3 DISI Turbo].) (See AFTER REPAIR PROCEDURE [MZR-CD 2.2].) (See AFTER REPAIR PROCEDURE [SKYACTIV-G 2.0].) • 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 same DTC present?	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION.)
No	Go to the next step.
4	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.

STEP

INSPECTION

ACTION

VERIFY NUMBER OF PROGRAMMED KEYS

• Perform the PID/data monitor inspection using the M-MDS to verify the number of programmed keys.

(See PID/DATA MONITOR INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

― NUM_KEYs

(See PID/DATA MONITOR TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

• Are eight keys programmed?

Yes

Erase the key ID number.

Program an additional key referring to the immobilizer system-related parts programming, then go to the next step.