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Nissan Sentra B18 (2020-2025) Service Manual: P010a Manifold Absolute Pressure Sensor

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P010A

ABSL PRES SEN/CIRC

(Mass or volume air flow sensor “B” circuit)

A

Diagnosis condition

Engine running at idle

Signal (terminal)

Manifold absolute pressure (MAP) sensor signal

Threshold

An excessively low voltage from the sensor is sent to ECM

Diagnosis delay time

—

B

Diagnosis condition

Engine running at idle

Signal (terminal)

Manifold absolute pressure (MAP) sensor signal

Threshold

An excessively high voltage from the sensor is sent to ECM

Diagnosis delay time

—

POSSIBLE CAUSE

  • Harness or connectors [Manifold absolute pressure (MAP) sensor circuit is open or shorted.]

  • Manifold absolute pressure (MAP) sensor

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Start engine and let it idle for 10 seconds.

    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO-1 >>

    To check malfunction symptom before repair: Refer to Intermittent Incident.

    NO-2 >>

    Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK GROUND CONNECTION

    1. Turn ignition switch OFF.

    2. Check ground connection E8. Refer to Ground Inspection.

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Repair or replace ground connection.

  2. CHECK MAP SENSOR

    Check MAP sensor.

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Replace MAP sensor. Refer to Removal and Installation.

  3. CHECK MAP SENSOR POWER SUPPLY

    1. Turn ignition switch OFF.

    2. Disconnect MAP sensor harness connector.

    3. Turn ignition switch ON.

    4. Check the voltage between MAP sensor harness connector and ground.

      +

      −

      Voltage

      (Approx.)

      MAP sensor

      Connector

      Terminal

      F76

      1

      Ground

      5 V

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    GO TO 4.

  4. CHECK MAP SENSOR POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.

    2. Disconnect ECM harness connector.

    3. Check the continuity between ECM harness connector and MAP sensor harness connector.

      ECM

      MAP sensor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F24

      54

      F76

      1

      Existed

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

    Is the inspection result normal?

    YES >>

    Perform the trouble diagnosis for ECM power supply circuit. Refer to Diagnosis Procedure.

    NO >>

    Repair or replace error-detected parts.

  5. CHECK MAP SENSOR GROUND CIRCUIT

    1. Turn ignition switch OFF.

    2. Disconnect ECM harness connector.

    3. Check the continuity between ECM harness connector and MAP sensor harness connector.

      ECM

      MAP sensor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F24

      49

      F76

      3

      Existed

    4. Also check harness for short to power.

    Is the inspection result normal?

    YES >>

    GO TO 6.

    NO >>

    Repair or replace error-detected parts.

  6. CHECK MAP SENSOR CIRCUIT

    1. Check the continuity between ECM harness connector and MAP sensor harness connector.

      ECM

      MAP sensor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F24

      52

      F76

      2

      Existed

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

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Repair or replace error-detected parts.

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