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Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OVERALL FUNCTION-I 

    With CONSULT-II 

    1. Turn ignition switch ON.
    2. Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT-II.
    3. Check "BRAKE SW1" indication under the following conditions.

      M/T models 

      CLUTCH PEDAL AND BRAKE PEDAL CONDITION INDICATION

      CONDITION INDICATION
      Clutch pedal and/or brake pedal: Slightly depressed OFF
      Clutch pedal and brake pedal: Fully released ON

      A/T and CVT models 

      CLUTCH PEDAL AND BRAKE PEDAL CONDITION INDICATION

      CONDITION INDICATION
      Brake pedal: Slightly depressed OFF
      Brake pedal: Fully released ON
      Fig 1: Consult-II Display - Data Monitor
      G04812487Courtesy of NISSAN NORTH AMERICA, INC.

    Without CONSULT-II 

    1. Turn ignition switch ON.
    2. Check voltage between ECM terminal 100 and ground under the following conditions.

      M/T models 

      VOLTAGE CONDITION CHART

      CONDITION VOLTAGE
      Clutch pedal and/or brake pedal: Slightly depressed Approximately 0V
      Clutch pedal and brake pedal: Fully released Battery voltage

      A/T and CVT models 

      VOLTAGE CONDITION CHART

      CONDITION VOLTAGE
      Brake pedal: Slightly depressed Approximately 0V
      Brake pedal: Fully released Battery voltage
      Fig 2: Checking Voltage Between ECM Terminal 100 And Ground
      G04812488Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK >> GO TO 2.

    NG (M/T models) >> GO TO  3.

    NG (A/T and CVT models) >> GO TO  4.

  2. CHECK OVERALL FUNCTION-II 

    With CONSULT-II 

    Check "BRAKE SW2" indication in "DATA MONITOR" mode.

    BRAKE PEDAL CONDITION INDICATION

    CONDITION INDICATION
    Brake pedal: Fully released OFF
    Brake pedal: Slightly depressed ON
    Fig 3: CONSULT-II Display - Data Monitor
    G04812489Courtesy of NISSAN NORTH AMERICA, INC.

    Without CONSULT-II 

    Check voltage between ECM terminal 99 and ground under the following conditions.

    VOLTAGE CONDITION CHART

    CONDITION VOLTAGE
    Brake pedal: Fully released Approximately 0V
    Brake pedal: Slightly depressed Battery voltage
    Fig 4: Checking Voltage Between ECM Terminal 99 And Ground
    G04812490Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK >> GO TO  15.

    NG >> GO TO  11.

  3. CHECK ASCD CLUTCH SWITCH POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ASCD clutch switch (1) harness connector.
      • Clutch pedal (2)
    3. Turn ignition switch ON.
      Fig 5: Identifying ASCD Clutch Switch Harness Connector
      G04812491Courtesy of NISSAN NORTH AMERICA, INC.
    4. Check voltage between ASCD clutch switch terminal 1 and ground with CONSULT-II or tester.

      Voltage: Battery voltage 

    OK or NG 

    OK >> GO TO  9.

    NG >> GO TO 4.

    Fig 6: Checking Voltage Between ASCD Clutch Switch Terminal 1 And Ground
    G04812492Courtesy of NISSAN NORTH AMERICA, INC.
  4. CHECK ASCD BRAKE SWITCH POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect ASCD brake switch (2) harness connector.
      • Stop lamp switch (1)
    3. Turn ignition switch ON.
      Fig 7: Identifying ASCD Brake Switch And Stop Lamp Switch
      G04812484Courtesy of NISSAN NORTH AMERICA, INC.
    4. Check voltage between ASCD brake switch terminal 1 and ground under the following conditions with CONSULT-II or tester.
      VOLTAGE CONDITION CHART

      CONDITION VOLTAGE
      Clutch pedal: Fully released Battery voltage
      Clutch pedal: Slightly depressed Approx. 0V
      Fig 8: Checking Voltage Between ASCD Clutch Switch Terminal 1 And Ground
      G04812492Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK (M/T models) >> GO TO  6.

    OK (A/T and CVT models) >> GO TO  7.

    NG >> GO TO 5.

  5. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors M69, E7
    • 10A fuse
    • Harness for open or short between ASCD brake switch and fuse

      >> Repair open circuit or short to ground or short to power in harness or connectors.

  6. CHECK ASCD CLUTCH SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Check harness continuity between ASCD brake switch terminal 2 and ASCD clutch switch terminal 1.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    3. Also check harness for short to ground and short to power.

    OK or NG 

    OK >> GO TO  8.

    NG >> Repair open circuit or short to ground or short to power in harness or connectors.

  7. CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between ECM terminal 100 and ASCD brake switch terminal 2.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    4. Also check harness for short to ground and short to power.

    OK or NG 

    OK >> GO TO 8.

    NG >> Repair open circuit or short to ground or short to power in harness or connectors.

  8. CHECK ASCD BRAKE SWITCH 

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK >> GO TO  15.

    NG >> Replace ASCD brake switch.

  9. CHECK ASCD CLUTCH SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between ECM terminal 100 and ASCD clutch switch terminal 2.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    4. Also check harness for short to ground and short to power.

    OK or NG 

    OK >> GO TO 10.

    NG >> Repair open circuit or short to ground or short to power in harness or connectors.

  10. CHECK ASCD CLUTCH SWITCH 

    Refer to "COMPONENT INSPECTION "

    OK or NG 

    OK >> GO TO  15.

    NG >> Replace ASCD clutch switch.

  11. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect stop lamp switch (1) harness connector.
      • ASCD brake switch (2)
        Fig 9: Identifying ASCD Brake Switch And Stop Lamp Switch
        G04812484Courtesy of NISSAN NORTH AMERICA, INC.
    3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-II or tester.
      Fig 10: Checking Voltage Between Stop Lamp Switch Terminal 1 And Ground
      G04812496Courtesy of NISSAN NORTH AMERICA, INC.

      Voltage: Battery voltage 

    OK or NG 

    OK >> GO TO  13.

    NG >> GO TO 12.

  12. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors M69, E7
    • Harness for open or short between stop lamp switch and battery

      >> Repair open circuit or short to ground or short to power in harness or connectors.

  13. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Disconnect ECM harness connector.
    2. Check harness continuity between ECM terminal 99 and stop lamp switch terminal 2.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    3. Also check harness for short to ground and short to power.

    OK or NG 

    OK >> GO TO 14.

    NG >> Repair open circuit or short to ground or short to power in harness or connectors.

  14. CHECK STOP LAMP SWITCH 

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK >> GO TO 15.

    NG >> Replace stop lamp switch.

  15. CHECK INTERMITTENT INCIDENT 

    Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

    >> INSPECTION END 

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