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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> On-Board Diagnostic [Advanced Keyless Entry System And Push Button Start System] >> DTC U0401:68 [Advanced Keyless Entry And Push Button Start System] >> Diagnostic Procedure
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Diagnostic Procedure

Step Inspection Action
1 PERFORM ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM DTC INSPECTION 
Yes Go to the applicable DTC inspection.
(See DTC B10E7:12 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
(See DTC B10E7:17 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No Go to the next step.
2 PERFORM PCM DTC INSPECTION 
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZR 2.5] .)
(See DTC TABLE [MZI 3.7 V6] .)
No Go to the next step.
3 VERIFY TROUBLESHOOTING COMPLETED 
Yes Replace the keyless control module, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No Go to the next step.
4 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.