SFI SYSTEM(w/ Canister Pump Module), 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

B008IQFE01

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 manifold absolute pressure sensor, the ECM controls the purge VSV and corrects any errors in the air fuel ratio due to change in pressure.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input The output voltage from the manifold absolute pressure sensor below 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

 Comes on DTC stored
P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input The output voltage from the manifold absolute pressure sensor higher 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

 Comes on DTC stored

Tech Tips

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

Manifold Absolute Pressure Malfunction
Approximately 0 kPa(abs) [0 mmHg(abs)]

  • Short in PIM circuit to ground

  • Short in PIM circuit to EPIM circuit

  • Open in VCPM circuit
130 kPa(abs) [975 mmHg(abs)] or higher

  • Short in VCPM circuit to PIM circuit

  • Open in PIM circuit

  • Open in EPIM 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.

MONITOR STRATEGY

Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

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

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Start the engine and wait 5 seconds or more.

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

  8. Read pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

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

  10. Input the DTC: P0107 or P0108.

  11. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and the DTC judgment result again.

WIRING DIAGRAM

B008I16E21
*a Manifold Absolute Pressure Sensor

CAUTION / NOTICE / HINT

Tech Tips

Read Freeze Frame Data using the GTS. 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 GTS (MAP)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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


      Powertrain > Engine and ECT > Data List
      Tester Display
      MAP

    5. Read the MAP value.

      OK
      Same value as the actual atmospheric pressure.

      Tech Tips


      • Standard atmospheric pressure is 101 kPa(abs) (758 mmHg(abs)). For every 100 m (328 ft.) increase in altitude, pressure drops by 1 kPa(abs) (7.5 mmHg(abs)). Varies by weather (high atmospheric pressure, low atmospheric pressure).

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

      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. CHECK HARNESS AND CONNECTOR

    Tech Tips

    Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


    1. B008JLIC06
      *a

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      Disconnect the manifold absolute pressure sensor connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C15-3 (VC) - C15-1 (E2) Engine switch on (IG) 4.75 to 5.25 V
      C15-2 (PIM) - C15-1 (E2) Engine switch on (IG) 3.0 to 5.25 V

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

    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C15-1 (E2) - Body ground Always Below 1 Ω
      C15-3 (VC) - C15-2 (PIM) Engine switch off 171 to 189 kΩ
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

    NG

  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
      Tester Connection Condition Specified Condition
      C15-3 (VC) - C65-77 (VCPM) Always Below 1 Ω
      C15-1 (E2) - C65-76 (EPIM) Always Below 1 Ω
      C15-2 (PIM) - C65-78 (PIM) Always Below 1 Ω
      C15-3 (VC) or C65-77 (VCPM) - Body ground Always 10 kΩ or higher
      C15-2 (PIM) or C65-78 (PIM) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR