SFI SYSTEM (w/o EGR 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

By a built-in sensor unit, the manifold absolute pressure sensor detects the intake manifold pressure as a voltage.

A01NFHWE01
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


  • DTC P0107 and P0108 are detected when the power switch is on (IG) for approximately 2 seconds.

  • When DTC P0107 or P0108 is detected, check the manifold absolute pressure by entering the following menus on the intelligent tester: Powertrain / Engine and ECT / Data List / All Data / MAP.

Manifold Absolute Pressure (kPa) Malfunction
Approximately 0

  • PIM circuit short

  • E2 circuit short
130 or more

  • VC circuit short

  • PIM circuit open or short

  • E2 circuit open

WIRING DIAGRAM

A01NEBZE02

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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 power switch on (IG).

    3. Turn the tester on.

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

    5. Read the MAP 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.


    NG

    CHECK TERMINAL VOLTAGE (MANIFOLD ABSOLUTE PRESSURE SENSOR) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  2. CHECK TERMINAL VOLTAGE (MANIFOLD ABSOLUTE PRESSURE SENSOR)

    A01NEBKE04
    Text in Illustration
    *1

    Front view of wire harness connector

    (to Manifold Absolute Pressure Sensor)

    1. Disconnect the manifold absolute pressure sensor connector.

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D52-3 (VC) - D52-2 (E2) Power switch on (IG) 4.5 to 5.5 V
      D52-1 (PIM) - D52-2 (E2) Power switch on (IG) 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 power switch on (IG) and turn the tester on.

    3. Clear the DTC Click here.

    4. Turn the power switch off.

    5. Turn the power switch on (IG) and wait for 5 seconds.

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

    7. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0107 or P0108 is output B

    B

    REPLACE ECM Click here

    A

    END

  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)
      Tester Connection Condition Specified Condition
      D52-3 (VC) - D1-88 (VPIM) Always Below 1 Ω
      D52-2 (E2) - D1-87 (EPIM) Always Below 1 Ω
      D52-1 (PIM) - D1-89 (PIM) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      D52-3 (VC) or D1-88 (VPIM) - Body ground Always 10 kΩ or higher
      D52-1 (PIM) or D1-89 (PIM) - Body ground Always 10 kΩ or higher

    4. Reconnect the manifold absolute pressure sensor connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

    OK

    REPLACE ECM Click here