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Home >> Infiniti >> 2017 >> QX30 Sport >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> SRS Airbag Control System (DTCS) >> DTC/Circuit Diagnosis >> DTC B00A0: Occupant Classification System Control Unit >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC CONSULT screen items DTC detecting condition
(Trouble diagnosis content) [Malfunction type]
B00A0 01 Occupant detection sensor ECU [ELECTRICAL MALFUNCTION] Diagnosis condition When ignition switch is ON.
Signal (terminal) Occupant classification sensor signal
Threshold Driver air bag module circuit is shorted to ground
Diagnosis delay time 5 sec.
16 [CIRC VOLT BELOW THRESHOLD] Diagnosis condition When ignition switch is ON.
Signal (terminal) Battery low voltage signal
Threshold Power supply malfunction (low voltage) of occupant classification system control unit
Diagnosis delay time 5 sec.
54 [MISSING CALIBRATION] Diagnosis condition When ignition switch is ON.
Signal (terminal) -
Threshold Incomplete of calibration for occupant classification system control unit
Diagnosis delay time 5 sec.
56 [ An incorrect or incompatible configuration was detected] Diagnosis condition When ignition switch is ON.
Signal (terminal) Occupant classification system control unit ID signal
Threshold Occupant classification system control unit ID is wrong
Diagnosis delay time 5 sec.
57 [Incorrect or incompatible software modules were detected] Diagnosis condition When ignition switch is ON.
Signal (terminal) Weight signal (LIN communication)
Threshold Weight signal do not match
Diagnosis delay time 5 sec.
68 [EVENT INFORMATION] Diagnosis condition When ignition switch is ON.
Signal (terminal) Weight class signal
Threshold -
Diagnosis delay time 25 sec.
B00A0 7A Occupant detection sensor ECU [FLUID LEAK OR SEAL FAILURE] Diagnosis condition When ignition switch is ON.
Signal (terminal) Pressure signal
Threshold Pressure sensor is malfunction
Diagnosis delay time 5 sec.
7B [LOW FLUID LEVEL] Diagnosis condition When ignition switch is ON.
Signal (terminal) Driver air bag module signal
Threshold Driver air bag module circuit is shorted to power supply circuit
Diagnosis delay time 5 sec.
81 [INVALID SERIAL DATA RECEIVED] Diagnosis condition When ignition switch is ON.
Signal (terminal) Weight signal
Threshold wrong weight
Diagnosis delay time 24 sec.
92 [PERFORMANCE OR INCORRECT OPERATION] Diagnosis condition When ignition switch is ON.
Signal (terminal) -
Threshold Acceleration self test error
Diagnosis delay time 5 sec.
96 [CMPNENT INTERNAL MLFNCTN] Diagnosis condition When ignition switch is ON.
Signal (terminal) -
Threshold Occupant classification system control unit detected internal error
Diagnosis delay time 5 sec.
98 [COMPONENT/SYS OVER TEMP] Diagnosis condition When ignition switch is ON.
Signal (terminal) Temperature signal
Threshold Temperature sensor is malfunction
Diagnosis delay time 5 sec.