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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 568 (On-Board Diagnostic [Immobilizer System (Keyless Entry System))) >> Security Light: 14, DTC: B10D7:81/P1260:00 [Immobilizer System (Keyless Entry System)] >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT COIL ANTENNA CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the negative battery cable.
  • Disconnect the coil antenna connector.
  • Inspect the connector and terminals (corrosion, damage, pin disconnection).
  • Is there any malfunction?
Yes Repair or replace the connector or terminals, then go to the next step.
No Go to the next step
2 VERIFY THAT 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.
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 PERFORM DTC INSPECTION 
Yes Replace the coil antenna, then go to the next step.
See COIL ANTENNA REMOVAL/INSTALLATION [KEYLESS ENTRY SYSTEM] .
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 PERFORM DTC INSPECTION 
Yes Replace the PCM and program the immobilizer system-related parts, then go to the next step.
See PCM REMOVAL/INSTALLATION [L5] .
See PCM REMOVAL/INSTALLATION [MZI-3.7] .
See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM] .
No Go to Step 6.
5 VERIFY TROUBLESHOOTING COMPLETED 
Yes Replace the instrument cluster and program the immobilizer system-related parts, then go to the next step.
See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .
See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [KEYLESS ENTRY SYSTEM] .
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)] .
No DTC troubleshooting completed.