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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 476 (On-Board Diagnostic (Immobilizer System)) >> DTC B1601/P1260: Keyless Control Module Has Detected Unregistered Key ID Number >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1601/P1260 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY NUMBER OF REGISTERED KEYS 
  • Using the WDS or equivalent, perform the PID/data monitor inspection and confirm the number of registered keys.

    (See PID/DATA MONITOR TABLE .)

  • Are one or more keys registered?
 Yes Go to the next step.
No Go to Step 3.
2 VERIFY NUMBER OF REGISTERED KEYS 
  • Using the WDS or equivalent, perform the PID/data monitor inspection and confirm the number of registered keys.

    (See PID/DATA MONITOR TABLE .)

  • Are eight keys registered?
 Yes Using the WDS or equivalent, clear the key ID numbers as necessary, then go to the next step.
No Go to the next step.
3 INSPECT KEYLESS CONTROL MODULE 
  • Using the WDS or equivalent, register the key ID number.

    (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING .)

    NOTE:
    • Two or more keys must be registered to start the engine.
  • Using the registered key, turn the ignition switch to the ON position.
  • Is the DTC displayed again?
    • SECURITY LIGHT: 15
    • WDS or equivalent: B1601/P1260
 Yes Replace the keyless control module and perform procedures for when replacing the keyless control module only.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
(See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING .)
No DTC troubleshooting completed.
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