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Home >> Mazda >> 2023 >> MX-5 Miata Club >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> On-Board Diagnostic - Start Stop Unit >> Security Indicator Light: 09, DTC: U3000-96/P1260-00: Start Stop Unit Malfunction [Start Stop Unit] >> Diagnostic Procedure

Diagnostic Procedure

SECURITY INDICATOR LIGHT: 09, DTC: U3000:96/P1260:00 (START STOP UNIT) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY IF MALFUNCTIONING LOCATION IS START STOP UNIT DEPENDING ON REPEATABILITY  Yes Replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION .)
No Go to the next step.
2 VERIFY IF OTHER DTCs DISPLAYED 
  • Are any other DTCs displayed?
Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [START STOP UNIT] .)
No DTC troubleshooting completed.