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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 B2431/P1260: Key ID Number Registration Error >> 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 B2431/P1260 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY DTC USING WDS OR EQUIVALENT 
  • Is B2431/P1260 displayed?
 Yes Go to Step 3
No Go to the next step.
2 VERIFY DTC USING WDS OR EQUIVALENT 
  • Is B1600/P1260 displayed?
 Yes SECURITY LIGHT 13, WDS or equivalent B1600/P1260.
(See SECURITY LIGHT: 13, DTC B1600/P1260 .)
No Go to the next step
3 INSPECT KEYLESS CONTROL MODULE 
  • Using the WDS or equivalent, clear the key ID number and re-register it.

    (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.
  • Verify the DTC using the WDS or equivalent
    • Is B2431/P1260 displayed again?
 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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