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Infiniti
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2017
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QX30 Premium, AWD
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Repair and Diagnosis
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Electrical
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Body Electrical
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Power Control System (DTCS)
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DTC/Circuit Diagnosis
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DTC B21DC: Electronic Ignition Switch Control Unit
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DTC Description
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Possible Cause
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Possible Cause
Electronic ignition switch control unit
Malfunction of sub battery voltage (less than 7 V)