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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 >> DTC C0051-95: Steering Angle Sensor Assembly Malfunction [Start Stop Unit] >> Diagnostic Procedure

Diagnostic Procedure

DTC C0051:95 (START STOP UNIT) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY ELECTRIC POWER STEERING (EPS) CONTROL MODULE DTCs  Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [EPS CONTROL MODULE] .)
No Go to the next step.
2 VERIFY STEERING ANGLE SENSOR INSTALLATION CONDITION  Yes Go to the next step.
No Install the steering angle sensor correctly, then go to the next step. (See CLOCK SPRING REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
3 VERIFY THAT REPAIRS HAVE BEEN COMPLETED  Yes Replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION .)
No Go to the next step.
4 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.