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Home >> Infiniti >> 2009 >> G37 Base, 4D Sedan >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Power Steering Control System -- Sedan >> With 4WAS >> Component Diagnosis >> DTC C1621, C1622: 4WAS Front Actuator >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC DETECTION LOGIC CHART

DTC Items (CONSULT-III screen terms) Diagnostic item is detected when... Possible cause
C1621 ACTUATOR 4WAS front motor current valve error is detected. (4WAS front motor current valve is excessively large.) 4WAS front control unit or 4WAS front motor error is detected.
C1622 ACTUATOR 4WAS front motor voltage valve or current error valve is detected. (4WAS front motor voltage valve error is detected.) (Voltage valve or current valve error is detected when starting the system.) 4WAS front control unit or 4WAS front motor error is detected.
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