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Home >> Mazda >> 2021 >> CX-3 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (On-Board Diagnostic - Two-Step Deployment Control System) >> DTC B00C1-93: Occupant Classification Sensor Communication Error >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
Step Inspection Action
1 INSPECT OCCUPANT CLASSIFICATION SENSOR CONNECTOR 
  • Switch the ignition to off.
  • Disconnect the negative battery cable and wait for 1 min or more.  (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  • Disconnect the occupant classification sensor connector.
  • Inspect the occupant classification sensor connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Replace the malfunctioning part, then go to Step 2.
No Go to the next step.
2 PERFORM SAS CONTROL MODULE DTC INSPECTION  Yes
  • Replace the occupant classification sensor control module.

    (Refer to FRONT SEAT REMOVAL/INSTALLATION .)

  • Perform the DTC inspection again. If the same DTC is displayed, go to the next step.
No DTC troubleshooting completed.
3 INSPECT PASSENGER SENSING SYSTEM  Yes Replace the SAS control module. (Refer to SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
No DTC troubleshooting completed.