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ECD SYSTEM (w/o DPF), Diagnostic DTC:P0105, P0107, P0108

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DTC Code DTC Name
P0105 Manifold Absolute Pressure / Barometric Pressure Circuit
P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input
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DESCRIPTION

The manifold absolute pressure sensor detects the intake manifold pressure by using its built-in sensor unit. The ECM determines the basic injection duration 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.

Table 1. P0105
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
After engine is started, race engine for 1 second

After the engine is started, condition (a) continues for more than 2.0 seconds (1 trip detection logic):

(a) Manifold absolute pressure sensor voltage is 0.1 V or less, or 4.8 V or more.

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM
Table 2. P0107
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
After engine is started, race engine for 1 second

After the engine is started, condition (a) continues for more than 2.0 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
Table 3. P0108
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
After engine is started, race engine for 1 second

After engine is started, condition (a) continues for more than 2.0 seconds (1 trip detection logic):

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

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM
Table 4. Related Data List
DTC No. Data List
P0105 MAP
P0107
P0108
Tip:

  • If DTC P0105, P0107 and/or P0108 is stored, the following symptoms may appear:


    • Misfire

    • Combustion noise

    • Black smoke

    • White smoke

    • Lack of power

  • When DTC P0105, P0107 or P0108 is stored, check the intake manifold pressure by entering the following menus: Powertrain / Engine / Data List / MAP.

    Table 5. Reference
    Intake Manifold Pressure Malfunction
    Approximately 0 kPa

    • Open in VC circuit

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

    • Open in PIM circuit

    • Open in E2 circuit
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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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

Tip:

  • 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 intelligent tester. 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.

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PROCEDURE


  1. Click here

    READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)


    1. Connect the intelligent tester to the DLC3.

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

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

    4. Read the value.

      OK
      Same value as the actual atmospheric pressure.
      Tip:

      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).


  2. Click here

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


    1. A0158VYE01

      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 (Check for Open)
      Table 6. for LHD
      Tester Connection Condition Specified Condition
      C80-2 (PIM) - C45-114 (PIM) Always Below 1 Ω
      C80-3 (VC) - C45-66 (VCPM) Always Below 1 Ω
      C80-1 (E) - C45-75 (E2) Always Below 1 Ω
      Table 7. for RHD
      Tester Connection Condition Specified Condition
      C80-2 (PIM) - C46-114 (PIM) Always Below 1 Ω
      C80-3 (VC) - C46-66 (VCPM) Always Below 1 Ω
      C80-1 (E) - C46-75 (E2) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Table 8. for LHD
      Tester Connection Condition Specified Condition
      C80-2 (PIM) or C45-114 (PIM)) - Body ground Always 10 kΩ or higher
      C80-3 (VC) or C45-66 (VCPM) - Body ground Always 10 kΩ or higher
      C80-1 (E) or C45-75 (E2) - Body ground Always 10 kΩ or higher
      Table 9. for RHD
      Tester Connection Condition Specified Condition
      C80-2 (PIM) or C46-114 (PIM)) - Body ground Always 10 kΩ or higher
      C80-3 (VC) or C46-66 (VCPM) - Body ground Always 10 kΩ or higher
      C80-1 (E) or C46-75 (E2) - Body ground Always 10 kΩ or higher

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    CHECK ECM TERMINAL VOLTAGE (VC TERMINAL)


    1. A015A5TE02

      Disconnect the manifold absolute pressure sensor connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C80-3 (VC) - C80-1 (E) Ignition switch ON 4.5 to 5.5 V

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    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor (Click here).


  5. Click here

    CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs (Click here).

    3. Turn the ignition switch off.

    4. Turn the ignition switch to ON and turn the tester on.

    5. After the engine is started, race the engine for 1 second.

    6. Enter the following menus: Powertrain / Engine / DTC.

    7. Read the DTCs.

      Result
      Display (DTC output) Proceed to
      P0105, P0107 and/or P0108 A
      No output B

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    REPLACE ECM


    1. Replace the ECM (Click here).


  7. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


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    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs (Click here).

    3. Turn the ignition switch off.

    4. Turn the ignition switch to ON for 3 seconds and turn the tester on.

    5. After the engine is started, race the engine for 1 second.

    6. Confirm that the DTC is not output again.

      Tip:

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


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

      2. Input DTC P0105, P0107 and/or P0108.

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


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    END