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Infiniti
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2013
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M37 Base
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Repair and Diagnosis
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Steering
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Power Steering
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Steering Control System (With 4WAS)
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DTC/Circuit Diagnosis
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DTC C1633: 4WAS Front Control Unit
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DTC Logic
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DTC Detection Logic
DTC Detection Logic
DTC
Display Item
Malfunction detected condition
Possible cause
C1633
CONTROL UNIT
An error is detected inside 4WAS front control unit.
4WAS front control unit error