SFI 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

The manifold absolute pressure sensor detects the intake manifold pressure as a voltage using a built-in sensor unit.

A005GEFE20
DTC No. DTC Detection Condition Trouble Area
P0107

The output voltage from the vacuum sensor remains 0.5 V or less for 0.5 seconds or more

(1 trip detection logic).

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM
P0108

The output voltage from the vacuum sensor remains 4.5 V or more for 0.5 seconds or more

(1 trip detection logic).

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM

Tech Tips

When either of these DTCs is output, check the manifold absolute pressure using the intelligent tester. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.

Manifold Absolute Pressure Malfunction
Approximately 0 kPa (0 mmHg)

  • Short in PIM circuit to ground

  • Short in PIM circuit to E2 circuit
130 kPa (975 mmHg) or more

  • Open in VC circuit or short in VC circuit to PIM circuit

  • Open in PIM circuit

  • Open in E2 circuit

MONITOR DESCRIPTION

The ECM monitors the sensor voltage and uses this value to calculate the manifold absolute pressure. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the manifold pressure sensor and stores a DTC.

Example:

When the sensor output voltage remains below 0.5 V, or higher than 4.5 V for more than 0.5 seconds, the ECM stores a DTC.

CONFIRMATION DRIVING PATTERN


  1. Turn the ignition switch to ON and wait for 5 seconds or more.

WIRING DIAGRAM

A005K1KE03

CAUTION / NOTICE / HINT

Tech Tips


  • If other DTCs related to different systems that have terminal E2 as the ground terminal are stored simultaneously, there may be an open circuit between terminal E2 and body ground.

  • 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, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (MAP)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Read the MAP value.

      OK
      Same value as the actual atmospheric pressure

      Tech Tips


      • Standard atmospheric pressure is 101 kPa (758 mmHg). For every 100 m (328 ft.) increase in elevation, pressure drops by 1 kPa (7.50 mmHg). This varies by weather (high atmospheric pressure, low atmospheric pressure).

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


    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. CHECK TERMINAL VOLTAGE (MANIFOLD ABSOLUTE PRESSURE SENSOR)

    A005GXVE01
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Manifold Absolute Pressure Sensor)

    1. Disconnect the manifold absolute pressure sensor connector.

    2. Turn the ignition switch to ON.

    3. Measure the voltage between the terminals of the manifold absolute pressure sensor connector.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B35-3 (VC) - B35-1 (E2) Ignition switch ON 4.5 to 5.5 V
      B35-2 (PIM) - B35-1 (E2) Ignition switch ON 4.0 to 5.0 V

    4. Reconnect the manifold absolute pressure sensor connector.


    NG

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

    OK

  3. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor Click here.


    NEXT

  4. CHECK WHETHER DTC OUTPUT RECURS (P0107 OR P0108)


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTC Click here.

    4. Turn the ignition switch off and wait for at least 30 seconds.

    5. Turn the ignition switch to ON and wait for 5 seconds.

    6. Turn the tester on.

    7. Enter the following menus: Powertrain / Engine and ECT / DTC.

    8. Read DTCs.

      Result
      Result Proceed to
      No DTC output A
      DTC P0107 and/or P0108 output B

    OK

    END

    NG

    REPLACE ECM Click here

  5. 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 (Check for Open)
      for RHD
      Tester Connection Condition Specified Condition
      B35-3 (VC) - B23-118 (VCPM) Always Below 1 Ω
      B35-1 (E2) - B23-119 (EPIM) Always Below 1 Ω
      B35-2 (PIM) - B23-87 (PIM) Always Below 1 Ω
      for LHD
      Tester Connection Condition Specified Condition
      B35-3 (VC) - B22-118 (VCPM) Always Below 1 Ω
      B35-1 (E2) - B22-119 (EPIM) Always Below 1 Ω
      B35-2 (PIM) - B22-87 (PIM) Always Below 1 Ω
      Standard Resistance (Check for Short)
      for RHD
      Tester Connection Condition Specified Condition
      B35-3 (VC) or B23-118 (VCPM) - Body ground Always 10 kΩ or higher
      B35-1 (E2) or B23-119 (EPIM) - Body ground Always 10 kΩ or higher
      B35-2 (PIM) or B23-87 (PIM) - Body ground Always 10 kΩ or higher
      for LHD
      Tester Connection Condition Specified Condition
      B35-3 (VC) or B22-118 (VCPM) - Body ground Always 10 kΩ or higher
      B35-1 (E2) or B22-119 (EPIM) - Body ground Always 10 kΩ or higher
      B35-2 (PIM) or B22-87 (PIM) - Body ground Always 10 kΩ or higher

    4. Reconnect the manifold absolute pressure sensor connector.

    5. Reconnect the ECM connector.


    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR