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2008 - MX-5 - Body and Accessories

SECURITY LIGHT 21, DTC B1213/P1260 [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]



SECURITY LIGHT: 21

Only one key ID number is registered.

DTC: B1213/P1260

DETECTION CONDITION

  • Only one key is registered.

POSSIBLE CAUSE

  • Only one registered key


Diagnostic Procedure



STEP

INSPECTION

ACTION

1

Yes

Replace the instrument cluster and perform the resetting procedure for the immobilizer system when replacing the instrument cluster.

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [KEYLESS ENTRY SYSTEM].)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [KEYLESS ENTRY SYSTEM].)

No

2

    VERIFY DTC
  • Using the registered key, turn the ignition switch to the ON position.

  • Is the DTC displayed again?

    • Security light: 21

    • M-MDS: B1213/P1260

Yes

Replace the instrument cluster and perform the resetting procedure for the immobilizer system when replacing the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [KEYLESS ENTRY SYSTEM].)

No

DTC troubleshooting completed.




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