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Infiniti
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2009
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G37 Base, 4D Sedan
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Repair and Diagnosis
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Steering
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Steering Control Systems
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Power Steering Control System -- Sedan
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With 4WAS
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Component 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 DETECTION LOGIC CHART
DTC
Items (CONSULT-III screen terms)
Diagnostic item is detected when...
Possible cause
C1633
CONTROL UNIT
An error is detected inside 4WAS front control unit.
4WAS front control unit error