DTC Detection Logic
WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
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CONSULT Display
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DTC Detection Condition
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Possible cause
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ROOM LAMP FUSE
[B259A]
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When BCM detects that power supply voltage is supplied to fusible link battery power, but not to BCM battery fuse for 2 minutes when ignition switch is ON.
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Harness or connector (power supply circuit)
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