ECD SYSTEM (w/ DPF), 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

A003GCNE01

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 so that it reaches the proper level under any driving conditions.

P0107
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
2 seconds after engine is started, race engine for 1 second

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

P0108
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
2 seconds after engine is started, race engine for 1 second

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

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 / MAP.

    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 E circuit

WIRING DIAGRAM

A003FYTE49

INSPECTION PROCEDURE

Note


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

  • After replacing the fuel supply pump assembly, the ECM needs initialization Click here.

  • After replacing an injector assembly, the ECM needs registration Click here.

Tech Tips

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 (MANIFOLD ABSOLUTE PRESSURE)


    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 / MAP.

    4. Read the value.

      OK
      Same as the actual atmospheric pressure.

      Tech Tips


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

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


    OK
    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
      D51-2 (PIM) - D99-117 (PIM) Always Below 1 Ω
      D51-3 (VC) - D99-93 (VCPM) Always Below 1 Ω
      D51-1 (E) - D99-72 (EPIM) Always Below 1 Ω
      D51-2 (PIM) or D99-117 (PIM) - Body ground Always 10 kΩ or higher
      D51-3 (VC) or D99-93 (VCPM) - Body ground Always 10 kΩ or higher
    4. Reconnect the manifold absolute pressure sensor connector.

    5. Reconnect the ECM connector.


    NG
    OK
  3. CHECK ECM TERMINAL VOLTAGE (VC TERMINAL)


    1. A003E7VE24
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Absolute Pressure Sensor)

      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
      D51-3 (VC) - D51-1 (E) Ignition switch ON 4.75 to 5.25 V
    3. Reconnect the manifold absolute pressure sensor connector.


    NG
    OK
  4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor.


    NEXT
  5. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the GTS to the DLC3.

    2. Clear the DTCs Click here.

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

    4. Turn the GTS off.

    5. Start the engine.

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

    7. Turn the GTS on.

    8. Confirm that the DTC is not output again.

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

    10. Input DTC P0107 or P0108.

    11. 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
    A
  6. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT
  7. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT
  8. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Clear the DTCs Click here.

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

    4. Turn the GTS off.

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

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

    7. Confirm that the DTC is not output again.

      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.

      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.


    NEXT