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Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (SRS Airbag Control System) >> DTC/Circuit Diagnosis >> DTC B1022: Occupant System Control Unit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
DTC Display contents of CONSULT DTC detecting condition Possible cause
B1022 OCCUPANT SENS C/U
[COMM FAIL]
  • Internal malfunction of Occupant Classification System control unit
  • Malfunction of circuit between Occupant Classification System control unit and Air bag diagnosis sensor unit
  • Malfunction of Air bag diagnosis sensor unit
  • Harness or connectors
  • Malfunction in Occupant Classification System control unit
  • Malfunction in air bag diagnosis sensor unit