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Home >> Nissan-Datsun >> 2006 >> Sentra Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0850 To P2A00 (QG18DE) >> DTC P1572 ASCD Brake Switch >> Overall Function Check >> Without Consult-II

Without Consult-II

  1. Turn ignition switch ON.
  2. Check voltage between ECM terminal 108 (ASCD brake switch signal) and ground under the following conditions.

    A/T models 

    TERMINALS VOLTAGE REFERENCE (A/T MODELS)

    Condition Voltage
    Brake pedal: Slightly depressed Approximately 0V
    Brake pedal: Fully released Battery voltage
    Fig 1: Checking Voltage Between Ground And ECM Terminal 108
    G04075137Courtesy of NISSAN MOTOR CO., U.S.A.

    M/T models 

    TERMINALS VOLTAGE REFERENCE (M/T MODELS)

    Condition Voltage
    Clutch pedal and/or brake pedal: Slightly depressed Approximately 0V
    Clutch pedal and brake pedal: Fully released Battery voltage
  3. If NG, go to "DIAGNOSTIC PROCEDURE ".

    If OK, go to next step.

  4. Check voltage between ECM terminal 101 (Stop lamp switch signal) and ground under the following conditions.
    TERMINALS VOLTAGE REFERENCE

    Condition Voltage
    Brake pedal: Fully released Approximately 0V
    Brake pedal: Slightly depressed Battery voltage
  5. If NG, go to "DIAGNOSTIC PROCEDURE ".
    Fig 2: Checking Voltage Between ECM Terminal 101 And Ground
    G04191349Courtesy of NISSAN MOTOR CO., U.S.A.
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