LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2023 >> Altima SL, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> EPS/DAST 3 (EPS Control Unit) >> DTC C1602: No Tuning Set >> DTC Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Diagnosis Procedure

  1. PROGRAMMING OF EPS CONTROL UNIT 
    1. Perform programming of the EPS control unit. Refer to Work Procedure .

    >>

    GO TO 2

  2. PERFORM SELF DIAGNOSTIC RESULT 
    1. SYMBOL CONSULT
      1. Ignition switch OFF to ON.
      2. Erase "Self Diagnostic Result" mode of "EPS/DAST 3".
      3. Ignition switch OFF and wait for at least 10 seconds.
      4. Ignition switch OFF to ON.
      5. Select "Self Diagnostic Result" mode of "EPS/DAST 3".
      NOTE: SYMBOL Replace the EPS control unit even if other DTCs are displayed along with "C1602" in self-diagnosis for "EPS/DAST 3".

    Is DTC detected?

    YES>>

    EPS control unit is malfunctioning. Replace EPS control unit. Refer to EPS CONTROL UNIT : Removal and Installation .

    NO>>

    Inspection End.