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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1904 (Brake Control System) >> HDC/Has/VDC/TCS/Abs >> Trouble Diagnosis For Self-Diagnostic Items >> Stop Lamp Switch System Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. SELF-DIAGNOSIS RESULT CHECK 

    Check self-diagnosis results.

    SELF-DIAGNOSIS RESULT

    Self-diagnosis results
    STOP LAMP SW

    Is the above displayed in the self-diagnosis display items? 

    YES: GO TO 2.

    NO: Inspection End.

  2. CONNECTOR INSPECTION 
    1. Disconnect the ABS actuator and electric unit (control unit) connector E125 and stop lamp switch connector E38.
    2. Check the terminals for deformation, disconnection, looseness or damage.

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace as necessary.

  3. STOP LAMP SWITCH INSPECTION 

    Check the voltage between the ABS actuator and electric unit (control unit) harness connector E125 terminal 41 and body ground.

    Brake pedal depressed: Battery voltage (approx. 12V) 

    Brake pedal not depressed: Approx. 0V 

    OK or NG 

    OK: Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

    NG: GO TO 4.

    Fig 1: Checking Voltage Between ABS Actuator And Electric Unit (Control Unit) Harness Connector E125 Terminal 41 And Body Ground
    G04205225Courtesy of NISSAN MOTOR CO., U.S.A.
  4. STOP LAMP RELAY CIRCUIT INSPECTION 
    1. Disconnect the stop lamp relay harness connector E12.
    2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector E125 terminal 41 and stop lamp relay harness connector E12 terminal 5.

    Continuity should exist  .

    OK or NG 

    OK: Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

    NG: Refer to "STOP LAMP ".

    Fig 2: Checking Continuity Between ABS Actuator And Electric Unit (Control Unit) Harness Connector E125 Terminal 41
    G04205226Courtesy of NISSAN MOTOR CO., U.S.A.