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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (On-Board Diagnostic - Airbag System) >> DTC B1413-11, B1413-13, B1413-87 Or B1413-96: Driver-Side Crash Zone Sensor (Airbag) (Us) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1413:11, B1413:13, B1413:87 OR B1413:96 DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT DRIVER-SIDE CRASH ZONE SENSOR CONNECTOR
WARNING:
Yes Replace the malfunctioning part and perform the repair completion verification.
No Go to the next step.
2 INSPECT DRIVER-SIDE CRASH ZONE SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
3 INSPECT DRIVER-SIDE CRASH ZONE SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT
  • Driver-side crash zone sensor and SAS control module connectors are disconnected.
  • Inspect the driver-side crash zone sensor signal circuit for open circuit. (See CIRCUIT INSPECTION .)
    NOTE:
    • Inspect for open circuit while shaking the wiring harness between the SAS control module and driver-side crash zone sensor.
  • Is the circuit normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
4 INSPECT DRIVER-SIDE CRASH ZONE SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
  • Driver-side crash zone sensor and SAS control module connectors are disconnected.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  • Switch the ignition ON (engine off or on).
  • Inspect the driver-side crash zone sensor signal circuit for short to power supply. (See CIRCUIT INSPECTION .)
    NOTE:
    • Inspect for a short to power supply while shaking the wiring harness between the SAS control module and driver-side crash zone sensor.
  • Is the circuit normal?
Yes Replace the driver-side crash zone sensor and perform the repair completion verification.
(See CRASH ZONE SENSOR REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
No Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification PERFORM SAS CONTROL MODULE DTC INSPECTION
Yes Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No DTC troubleshooting completed.