ECD SYSTEM, Diagnostic DTC:P0107, P0108

DTC Code DTC Name
P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input

DESCRIPTION

A00YV2IE01

The manifold absolute pressure sensor detects the intake manifold pressure. The ECM determines the basic injection volume and injection advance timing based on the voltage output by the manifold absolute pressure sensor.

The manifold absolute pressure sensor monitors the absolute pressure inside the intake manifold (default is 0 kPa [0 mmHg, 0 in.Hg]). As a result the ECM controls the air fuel ratio at the proper level under any driving conditions.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input

After the engine is started, condition (a) continues for more than 0.5 seconds (1 trip detection logic):

(a) Manifold absolute pressure sensor voltage is 0.1 V or less.

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM

 Comes on DTC stored
P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input

After the engine is started, condition (a) continues for more than 0.5 seconds (1 trip detection logic):

(a) Manifold absolute pressure sensor voltage is 4.8 V or higher.

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM

 Comes on DTC stored
Related Data List
DTC No. Data List
P0107

  • MAP

  • Atmosphere Pressure
P0108

Tech Tips


  • If DTC P0107 and/or P0108 is stored, the following symptoms may appear:


    • Misfire

    • Combustion noise

    • Black smoke

    • White smoke

    • Lack of power

  • When DTC P0107 or P0108 is stored, check the intake manifold pressure by entering the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.

    Reference
    Intake Manifold Pressure Malfunction
    Approximately 0 kPa

    • Open in VCPM circuit

    • Short in PIM circuit to ground

    • Short in PIM circuit to EPIM circuit
    250 kPa (1875 mmHg, 73.8 in.Hg) or higher

    • Short in VCPM circuit to PIM circuit

    • Open in PIM circuit

    • Open in EPIM circuit

CONFIRMATION DRIVING PATTERN

DTC No. DTC Detection Drive Pattern
P0107 After engine is started for 2 seconds, race engine for 1 second
P0108

WIRING DIAGRAM

A00YW88E13

CAUTION / NOTICE / HINT

Note

After replacing the ECM, the new ECM needs registration (Click here) and initialization Click here.

Tech Tips


  • If DTCs relating to different systems are stored and they share terminal E2 as their ground, check this ground circuit first.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. READ VALUE USING GTS (MAP)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.


      Powertrain > Engine > Data List
      Tester Display
      MAP

    4. Read the value.

      OK
      Same value as the actual atmospheric pressure.

      Tech Tips


      • Standard atmospheric pressure is 101 kPa. For every 100 m increase in altitude, pressure drops by 1 kPa. Varies by weather (high atmospheric pressure, low atmospheric pressure).

      • Also, check "Atmosphere Pressure" in the Data List.

      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 8 Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)


    1. Disconnect the manifold absolute pressure sensor connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B47-2 (PIM) - B76-117 (PIM) Always Below 1 Ω
      B47-3 (VC) - B76-75 (VCPM) Always Below 1 Ω
      B47-1 (E) - B76-72 (EPIM) Always Below 1 Ω
      B47-2 (PIM) or B76-117 (PIM) - Body ground Always 10 kΩ or higher
      B47-3 (VC) or B76-75 (VCPM) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)


    1. A00YVNZC05
      *a

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      Disconnect the manifold absolute pressure sensor connector.

    2. Turn the ignition switch to ON.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      B47-3 (VC) - B47-1 (E) Ignition switch ON 4.75 to 5.25 V
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 6 Click here

    OK

  4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off for 30 seconds or more.

    6. Turn the GTS off.

    7. Start the engine.

    8. After the engine is started for 2 seconds, race the engine for 1 second.

    9. Turn the GTS on.

    10. Confirm that the DTC is not output.

      Tech Tips

      Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.


      1. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.


        Powertrain > Engine > Utility
        Tester Display
        All Readiness

      2. Input DTC P0107 or P0108.

      3. Check the DTC judgment result.

        Result
        Result Proceed to
        ABNORMAL A
        NORMAL B

        Tech Tips

        If STATUS is INCOMPLETE or N/A, race the engine for 1 minute, and then idle the engine for 5 minutes.


    B

    END

    A

  6. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 8 Click here

  7. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

  8. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off for 30 seconds or more.

    6. Turn the ignition switch to ON for 3 seconds and turn the GTS on.

    7. After the engine is started for 2 seconds, race the engine for 1 second.

    8. Confirm that the DTC is not output.

      Tech Tips

      Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.


      1. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.


        Powertrain > Engine > Utility
        Tester Display
        All Readiness

      2. Input DTC P0107 or P0108.

      3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or N/A, race the engine for 1 minute and then idle the engine for 5 minutes.

      Result
      Proceed to
      NEXT

    NEXT

    END