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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B2103: Power Supply Circuit >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen items

DTC detecting condition

(Trouble diagnosis content)

[Malfunction type]

B2103

13

Power supply circuit

(Power supply circuit)

[CIRC OPEN]

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

Battery voltage signal

Threshold

Power supply circuit is open

Diagnosis delay time

15 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 air bag diagnosis sensor unit

Diagnosis delay time

15 sec.

17

[CIRC VOLT ABOVE THRESHOLD]

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

Battery high voltage signal

Threshold

Power supply malfunction (high voltage) of air bag diagnosis sensor unit

Diagnosis delay time

15 sec.