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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 C1608: Control Unit >> DTC Description
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DTC Description

DTC DETECTION LOGIC 

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detected condition
C1608 CONTROL UNIT (Control unit) Diagnosis condition When engine running.
Signal (terminal) -
Threshold Internal malfunction of EPS control unit
Diagnosis delay time 1 seconds or more

POSSIBLE CAUSE 

EPS control unit

FAIL-SAFE 

Manual steering state

DTC CONFIRMATION PROCEDURE 

  1. PRECONDITIONING 
    1. If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. DTC REPRODUCTION PROCEDURE 
    1. SYMBOL CONSULT
      1. Start the engine.
        CAUTION:

        Never drive the vehicle.

      2. Select "Self Diagnostic Result" mode of "EPS/DAST 3".

    Is DTC "C1608" detected?

    YES>>

    Proceed to diagnosis procedure. Refer to DTC Diagnosis Procedure .

    NO>>

    To check malfunction symptom before repair, refer to Inspection .

    NO>>

    Confirmation after repair: Inspection End.