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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> On-Board Diagnostic [Immobilizer System (With Advanced Keyless Entry And Push Button Start System)] >> Security Light: 11, DTC: B10D9:87/P1260:00 [Immobilizer System (Advanced Keyless Entry And Push Button Start System)] >> Diagnostic Procedure
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Diagnostic Procedure

Step Inspection Action
1 PERFORM DTC INSPECTION 
Yes Perform the security light: not illuminated, DTC: B10E6:11/- inspection.
(See SECURITY LIGHT: NOT ILLUMINATED, DTC B10E6:11/- [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)] .)
No Go to the next step.
2 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 Step 7.
No Go to the next step.
3 INSPECT COIL ANTENNA GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between coil antenna terminal F (wiring harness-side) and body ground.
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
4 INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION 
  • Disconnect the keyless control module 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 Step 7.
No Go to the next step.
5 INSPECT COIL ANTENNA POWER SUPPLY CIRCUIT FOR SHORT TO GROUND 
  • Inspect for continuity between coil antenna terminal H (wiring harness-side) and body ground.
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to ground, then go to Step 7.
No Go to the next step.
6 INSPECT COIL ANTENNA CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between the following terminals:
    • Coil antenna terminal H (wiring harness-side) and keyless control module terminal 4Q (wiring harness-side)
    • Coil antenna terminal A (wiring harness-side) and keyless control module terminal 4Q (wiring harness-side)
    • Coil antenna terminal B (wiring harness-side) and keyless control module terminal 4R (wiring harness-side)
    • Coil antenna terminal D (wiring harness-side) and keyless control module terminal 2D (wiring harness-side)
    • Coil antenna terminal C (wiring harness-side) and keyless control module terminal 2B (wiring harness-side)
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open circuit, then go to the next step.
7 PERFORM DTC INSPECTION 
Yes Replace the coil antenna, then go to the next step.
(See COIL ANTENNA REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No Go to Step 9.
8 VERIFY TROUBLESHOOTING COMPLETED 
Yes Replace the keyless control module and program the immobilizer system-related parts, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
(See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No Go to the next step.
9 VERIFY THAT NO OTHER DTCs ARE PRESENT 
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No DTC troubleshooting completed.