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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1059 (Brake Control System) >> 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 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. SELF-DIAGNOSIS RESULT CHECK 

    Check self-diagnosis results.

    Fig 1: Self-Diagnosis Results Chart
    G00740119Courtesy of NISSAN MOTOR CO., U.S.A.

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

    1. Yes: GO TO 2.
    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 

      1. OK: GO TO 3.
      2. NG: Repair or replace as necessary.
  3. STOP LAMP SWITCH INSPECTION 

    Turn the ignition switch ON and check the voltage between the ABS actuator and electric unit (control unit) connector E125 terminal 17 (R/G) and ground.

    Fig 2: Checking Voltage Between ABS Actuator And Electric Unit (Control Unit) Connector E125 Terminal 17 And Ground
    G00740120Courtesy of NISSAN MOTOR CO., U.S.A.

    17 (R/G) - Ground 

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

    Brake pedal not depressed :Approx. 0V 

    OK or NG 

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