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DTC Detection Logic

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DTC No. Index ("SELF-DIAG [CURRENT]"), ("SELF-DIAG [PAST]" or "TROUBLE DIAG RECORD")

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1022 OCCUPANT SENS C/U [COMM FAIL] Trouble occurs in OCS-C/U, circuit of OCS-C/U-ACU or ACU.
  • Disconnection of wiring harness.
  • Internal breakdown in occupant classification system control unit.
  • Internal breakdown in diagnosis sensor unit (ACU).
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