LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2007 >> FX35 AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control System >> Trouble Diagnosis For System >> Pressure Sensor Circuit >> DTC C1142 >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK SELF-DIAGNOSTIC RESULTS 

    Check the self-diagnostic results.

    SELF-DIAGNOSTIC RESULTS

    Self-diagnostic results
    PRESS SEN CIRCUIT

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

    Yes: GO TO  2.

    No: INSPECTION END

  2. CHECK STOP LAMP SWITCH CONNECTOR 
    1. Disconnect stop lamp switch connector and ABS actuator and electric unit (control unit) connector, check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
    2. Reconnect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis again.

    OK or NG 

    OK: Connector terminal contact is loose, damaged, open or shorted.

    NG: GO TO  3.

  3. CHECK STOP LAMP SWITCH 
    1. Turn ignition switch OFF and disconnect stop lamp switch harness connector.
    2. Operate stop lamp switch and check continuity between stop lamp switch harness connector terminals.
      3. Fig 1: Identifying Continuity Between Stop Lamp Switch Harness Connector Terminals
      G05220543Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY SPECIFICATION

    Terminal Condition Continuity
    1 - 2 Release stop lamp switch (When brake pedal is depressed.) Yes
    Push stop lamp switch (When brake pedal is released.) No

    OK or NG 

    OK: GO TO  4.

    NG: Replace stop lamp switch. Refer to "COMPONENTS ".

  4. CHECK STOP LAMP SWITCH CIRCUIT 
    1. Turn ignition switch OFF and disconnect stop lamp switch connector E210 and ABS actuator and electric unit (control unit) connector E56.
    2. Check continuity between stop lamp switch harness connector and ABS actuator and electric unit (control unit) harness connector.
      3. Fig 2: Identifying Continuity Between Stop Lamp Switch Harness Connector And ABS Actuator And Electric Unit Harness Connector
      G05220544Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY SPECIFICATION

    ABS actuator and electric unit (control unit) Stop lamp switch Continuity
    41 2 Yes

    OK or NG 

    OK: GO TO  5.

    NG: Open or short in harness between stop lamp switch and ABS actuator and electric unit (control unit). Repair or replace applied harness.

  5. CHECK PRESSURE SENSOR CONNECTOR 
    1. Disconnect pressure sensor connector and ABS actuator and electric unit (control unit) connector, check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
    2. Reconnect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis again.

    OK or NG 

    OK: Connector terminal contact is loose, damaged, open or shorted.

    NG: GO TO  6.

  6. CHECK PRESSURE SENSOR HARNESS 
    1. Turn ignition switch OFF and disconnect pressure sensor connector E53 and ABS actuator and electric unit (control unit) connector E56.
    2. Check continuity between ABS actuator and electric unit (control unit) harness connector and pressure sensor harness connector.
      3. Fig 3: Identifying Continuity Between ABS Actuator And Electric Unit Harness Connector And Pressure Sensor Harness Connector
      G05220545Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY SPECIFICATION

    ABS actuator and electric unit (control unit) Pressure sensor Continuity
    19 1 Yes
    20 2
    18 3

    OK or NG 

    OK: GO TO  7.

    NG: If the open or short in harness, repair or replace harness.

  7. CHECK PRESSURE SENSOR 
    1. Connect pressure sensor connector and ABS actuator and electric unit (control unit) connector.
    2. Perform "DATA MONITOR " of the "PRESS SENSOR" to check if the status is normal.
    DATA MONITOR DISPLAY CHART

    Condition Data monitor display
    When brake pedal is depressed. 0 to 170 bar
    When brake pedal is released. Approx. 0 bar

    OK or NG 

    OK: INSPECTION END

    NG: Pressure sensor is damaged or malfunctioning, replace pressure sensor.

scientia non olet · About LEMON Manuals