Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20132 TOURING, 1.5L ENG VIN Z, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSON-BOARD DIAGNOSTIC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]DTC B10D7:94/DTC P1260:00/SECURITY LIGHT: 13: KEY ID NUMBER ERRORDIAGNOSTIC PROCEDURE

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic Trans

Diagnostic Procedure

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic TransSECTION Diagnostic Procedure

DTC DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	PERFORM IMMOBILIZER SYSTEM DTC INSPECTION Verify the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] ). Is the following DTC present? Instrument cluster: B10D7:05 PCM: P1260:00	Yes	Perform the security light: 13, DTC: B10D7:05/P1260:00 inspection. (See SECURITY LIGHT: 13, DTC: B10D7:05/P1260:00 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)] ).
1		No	Go to the next step.
2	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.
2		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] ).
3	VERIFY COIL ANTENNA MALFUNCTION Switch the ignition to ON using the valid key other than the cause of the displayed DTC. Clear the DTC 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 ).
3		No	Dispose of the malfunctioning key and program a new key if necessary, then go to Step 6. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM] ).
4	VERIFY INSTRUMENT CLUSTER MALFUNCTION Clear the DTC 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, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION ).
4		No	Go to Step 6.
5	VERIFY TROUBLESHOOTING COMPLETED Clear the DTC 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 1.5] ).
5		No	Go to the next step.
6	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)] ).
6		No	DTC troubleshooting completed.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.