2008 Nissan-Datsun Sentra Base, Automatic CVTFACTORY OEM SERVICE PROCEDURE

Oil Pressure Sensor Inspection

  1. CHECK OIL PRESSURE SENSOR SIGNAL 
    1. Turn ignition switch ON.
    2. Check voltage between double meter harness connector M89 terminal 4 and ground.
      CONNECTOR TERMINAL VOLTAGE SPECIFICATION

      Terminals Condition Voltage (Approx.)
      (+) (-)
      Connector Terminal
      M89 4 Ground When ignition switch is in ON position. (Engine stopped.) 0.5V
      Engine running. [When the oil pressure is 60 psi (4.22 kg/cm2 )] 2.5V
      Fig 1: Checking Voltage Between Double Meter Harness Connector M89 Terminal 4 And Ground
      G04928423Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace double meter. Refer to "REMOVAL AND INSTALLATION ".

    NG: GO TO 2.

  2. CHECK OIL PRESSURE SENSOR POWER SUPPLY 

    Check voltage between double meter harness connector M89 terminal 3 and ground.

    Approx. 5.5V 

    Fig 2: Checking Voltage Between Double Meter Harness Connector M89 Terminal 3 And Ground
    G04928424Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Replace double meter. Refer to "REMOVAL AND INSTALLATION ".

  3. CHECK OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect double meter and oil pressure sensor connectors.
    3. Check continuity between double meter harness connector M89 (A) terminal 3 and oil pressure sensor harness connector F32 (B) terminal 3.

      Continuity should exist. 

      Fig 3: Checking Continuity Between Double Meter Harness Connector M89 Terminal 3 And Ground
      G04928425Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between double meter harness connector M89 (A) terminal 3 and ground.

      Continuity should not exist. 

    OK or NG 

    OK: GO TO 4.

    NG: Repair harness or connector between double meter and oil pressure sensor.

  4. CHECK OIL PRESSURE SENSOR SIGNAL CIRCUIT 
    1. Check continuity between double meter harness connector M89 (B) terminal 4 and oil pressure sensor harness connector F32 (A) terminal 2.

      Continuity should exist. 

    2. Check continuity between double meter harness connector M89 (B) terminal 4 and ground.

      Continuity should not exist. 

      Fig 4: Checking Continuity Between Double Meter Harness Connector M89 Terminal 4 And Ground
      G04928426Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG: Repair harness or connector between double meter and oil pressure sensor.

  5. CHECK OIL PRESSURE SENSOR GROUND CIRCUIT 

    Check continuity between double meter harness connector M89 (A) terminal 5 and oil pressure sensor harness connector F32 (B) terminal 1.

    Continuity should exist. 

    OK or NG 

    OK: Replace oil pressure sensor.

    NG: Repair harness or connector between double meter and oil pressure sensor.

    Fig 5: Checking Continuity Between Double Meter Connector M89 Terminal 5 And Oil Pressure Sensor Connector F32 Terminal 1
    G04928427Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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