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 pressure inside the intake manifold as an absolute pressure with a built-in sensor and outputs a voltage. Based on the voltage from the vacuum sensor, the ECM controls the EGR, purge VSV, and corrects any errors in the pressure sensor due to changes in pressure.

A003S7HE03
DTC No. DTC Detecting Condition Trouble Area
P0107

The output voltage from the manifold absolute pressure sensor less than 0.5 V for 0.5 seconds

(1 trip detection logic)

  • Open or short in manifold absolute pressure sensor circuit

  • Manifold absolute pressure sensor

  • ECM
P0108

The output voltage from the manifold absolute pressure sensor more than 4.5 V for 0.5 seconds

(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 5 seconds.

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

Manifold Absolute Pressure (kPa) Malfunction
Approximately 0

  • PIM circuit short

  • E2 - PIM circuit short
130 or more

  • VC - PIM circuit short

  • PIM circuit open

  • E2 circuit open

WIRING DIAGRAM

A003RIYE02

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 (328 ft.) increase in altitude, pressure drops by 1 kPa.

        This varies by weather (high atmospheric pressure, low atmospheric pressure).

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


    NG

    CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR (POWER SOURCE VOLTAGE) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  2. CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR (POWER SOURCE VOLTAGE)

    A003UZAE07
    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 power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B131-3 (VC) - B131-2 (E2) Power switch on (IG) 4.5 to 5.5 V
      B131-1 (PIM) - B131-2 (E2) Power switch on (IG) 4.0 to 5.0 V

    4. Reconnect the manifold absolute pressure sensor connector.

      Result
      Result Proceed to
      Outside standard range A
      Within standard range B

    B

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

    A

  3. 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
      B131-3 (VC) - B31-72 (VCPM) Always Below 1 Ω
      B131-2 (E2) - B31-71 (EPIM) Always Below 1 Ω
      B131-1 (PIM) - B31-69 (PIM) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B131-3 (VC) or B31-72 (VCPM) - Body ground Always 10 kΩ or higher
      B131-1 (PIM) or B31-69 (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

  4. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor Click here.


    NEXT

  5. 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 and wait for at least 30 seconds.

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

    6. Turn the tester on.

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

    8. 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