Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2025COROLLA CROSS XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSOCCUPANT CLASSIFICATION SYSTEM - DIAGNOSTICS - INTRODUCTIONOCCUPANT CLASSIFICATION SYSTEMDIAGNOSTIC TROUBLE CODE CHART [09/2021 - 11/2022]DIAGNOSTIC TROUBLE CODE CHART [09/2021 - 11/2022]
2025 Toyota Corolla Cross XLE, FWD
Diagnostic Trouble Code Chart [09/2021 - 11/2022]
2025 Toyota Corolla Cross XLE, FWDSECTION Diagnostic Trouble Code Chart [09/2021 - 11/2022]
OCCUPANT CLASSIFICATION SYSTEM
| DTC No. | Detection Item | Warning Indicate | DTC Output from | Priority | Test Mode / Check Mode | Link |
|---|---|---|---|---|---|---|
| B00C0-28 | Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure | Comes on | Does not apply to test/check mode | Refer to DTC B00C0-28: Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure [09/2021 - 11/2022] | ||
| B00C0-86 | Passenger Seat Occupant Classification Sensor "A" Signal (some circuit quantity, reported via serial data) Invalid | Comes on | Does not apply to test/check mode | Refer to DTC B00C0-86: Passenger Seat Occupant Classification Sensor "A" Signal (some circuit quantity, reported via serial data) Invalid [09/2021 - 11/2022] | ||
| B00C0-87 | Passenger Seat Occupant Classification Sensor "A" Missing Message | Comes on | Does not apply to test/check mode | Refer to DTC B00C0-87: Passenger Seat Occupant Classification Sensor "A" Missing Message [09/2021 - 11/2022] | ||
| B00C0-96 | Passenger Seat Occupant Classification Sensor "A" Component Internal Failure | Comes on | Does not apply to test/check mode | Refer to DTC B00C0-96: Passenger Seat Occupant Classification Sensor "A" Component Internal Failure [09/2021 - ] | ||
| B00C2-28 | Passenger Seat Occupant Classification Sensor "C" Signal Bias Level Out of Range / Zero Adjustment Failure | Comes on | Does not apply to test/check mode | Refer to DTC B00C2-28: Passenger Seat Occupant Classification Sensor "C" Signal Bias Level Out of Range / Zero Adjustment Failure [09/2021 - 11/2022] | ||
| B00C2-86 | Passenger Seat Occupant Classification Sensor "C" Signal (some circuit quantity, reported via serial data) Invalid | Comes on | Does not apply to test/check mode | Refer to DTC B00C2-86: Passenger Seat Occupant Classification Sensor "C" Signal (some circuit quantity, reported via serial data) Invalid [09/2021 - 11/2022] | ||
| B00C2-87 | Passenger Seat Occupant Classification Sensor "C" Missing Message | Comes on | Does not apply to test/check mode | Refer to DTC B00C2-87: Passenger Seat Occupant Classification Sensor "C" Missing Message [09/2021 - 11/2022] | ||
| B00C2-96 | Passenger Seat Occupant Classification Sensor "C" Component Internal Failure | Comes on | Does not apply to test/check mode | Refer to DTC B00C2-96: Passenger Seat Occupant Classification Sensor "C" Component Internal Failure [09/2021 - ] | ||
| B1793-12 | Load Sensor for Occupant Detection System Circuit Short to Battery | Comes on | Does not apply to test/check mode | Refer to DTC B1793-12: Load Sensor for Occupant Detection System Circuit Short to Battery [09/2021 - 11/2022] | ||
| B1793-16 | Load Sensor for Occupant Detection System Circuit Voltage Below Threshold | Comes on | Does not apply to test/check mode | Refer to DTC B1793-16: Load Sensor for Occupant Detection System Circuit Voltage Below Threshold [09/2021 - 11/2022] | ||
| B1793-17 | Load Sensor for Occupant Detection System Circuit Voltage Above Threshold | Comes on | Does not apply to test/check mode | Refer to DTC B1793-17: Load Sensor for Occupant Detection System Circuit Voltage Above Threshold [09/2021 - 11/2022] |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.