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Home >> Nissan-Datsun >> 2011 >> Altima Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Component Testing (Qr25DE) (CALIFORNIA) (Except Hybrid) >> ASCD Brake Switch >> Component Function Check
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Component Function Check

  1. CHECK FOR ASCD BRAKE SWITCH FUNCTION

    With CONSULT-III 

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

      Monitor item Condition Indication
      BRAKE SW1 Brake pedal (CVT)
      Brake pedal and clutch pedal (M/T)
      Slightly depressed OFF
      Fully released ON

    Without CONSULT-III 

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector and ground.
      TERMINALS VOLTAGE REFERENCE CHART

      ECM Ground Condition Voltage
      Connector Terminal
      E31 110 (ASCD brake switch signal) Ground Brake pedal (CVT)
      Brake pedal and clutch pedal (M/T)
      Slightly depressed Approx. 0 V
      Fully released Battery voltage
      Fig 1: Checking Voltage Between ECM Harness Connector And Ground
      G04926159Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: INSPECTION END.

      NO: Refer to "DIAGNOSIS PROCEDURE ".