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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B210A: Control Unit Power Supply >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BATTERY AND CHARGING SYSTEM 

    Check battery and charging system condition. Refer to Work Procedure and Inspection Procedure .

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace the malfunctioning parts.

  2. CHECK EPS CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT 

    Check power supply and ground circuit of EPS control unit. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    Replace the EPS control unit. Refer to Removal and Installation .

    NO

    Repair or replace the malfunctioning parts.

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