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

Refer to DTC P0106 Click here.

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 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

Tech Tips

When any of these DTCs are output, check the manifold absolute pressure using the Techstream. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / MAP.

Pressure Displayed Malfunction
Approximately 0 kPa(abs) [0 mmHg(abs)]
  • Short in PIM circuit to ground

  • Short in PIM circuit to E2 circuit

  • Open in VC circuit

130 kPa(abs) [975 mmHg(abs)] or higher
  • 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 absolute pressure sensor and stores a DTC.

Example:

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

MONITOR STRATEGY

Related DTCs

P0107: Manifold absolute pressure sensor range check (low voltage)

P0108: Manifold absolute pressure sensor range check (high voltage)

Required Sensors/Components (Main) Manifold absolute pressure sensor
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 0.5 seconds
MIL Operation Immediate
Sequence of Operation None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored None
Auxiliary battery voltage 8 V or higher
Power switch On (IG)
Time after power switch off to on (IG) 0.5 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

P0107
Manifold absolute pressure sensor voltage Less than 0.5 V
P0108
Manifold absolute pressure sensor voltage Higher than 4.5 V

COMPONENT OPERATING RANGE

Manifold absolute pressure sensor voltage 0.5 to 4.5 V

CONFIRMATION DRIVING PATTERN


  1. Connect the Techstream to the DLC3.

  2. Turn the power switch on (IG) and turn the Techstream on.

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

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

  5. Turn the power switch on (IG) and turn the Techstream on.

  6. Put the engine in inspection mode (maintenance mode) Click here.

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

  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

  9. Read the 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.

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

  11. Input the DTC: P0107 or P0108.

  12. Check the DTC judgment result.

    Techstream 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.

  13. If the judgment result shows INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs Click here.

    Tech Tips


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

    • If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

A01HTVZE03

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the Techstream. 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 TECHSTREAM (MAP)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

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

    5. Read the MAP value.

      OK
      Same value as the actual atmospheric pressure.

      Tech Tips


      • Standard atmospheric pressure is 101 kPa(abs) [760 mmHg(abs)]. For every 100 m (328 ft) increase in altitude, pressure drops by 1 kPa (7.5 mmHg). The pressure also varies due to the weather (high atmospheric pressure, low atmospheric pressure).

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


    NG
    OK
  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)


    1. A01HT4PE04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      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 Condition Specified Condition
      E25-3 (VC) - E25-1 (E2) Power switch on (IG) 4.75 to 5.25 V
      E25-2 (PIM) - E25-1 (E2) Power switch on (IG) 3.0 to 5.0 V

    NG
    OK
  3. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace the manifold absolute pressure sensor Click here.


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


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG) and turn the Techstream on.

    3. Clear the DTCs Click here.

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

    5. Turn the power switch on (IG).

    6. Turn the Techstream on.

    7. Drive the vehicle in accordance with the diving pattern described in the Confirmation Driving Pattern.

    8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    9. Read the DTCs.

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

    B
    A
  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
      Tester Connection Condition Specified Condition
      E25-3 (VC) - E28-78 (VCPM) Always Below 1 Ω
      E25-1 (E2) - E28-80 (EPIM) Always Below 1 Ω
      E25-2 (PIM) - E28-79 (PIM) Always Below 1 Ω
      E25-3 (VC) or E28-78 (VCPM) - Body ground Always 10 kΩ or higher
      E25-2 (PIM) or E28-79 (PIM) - Body ground Always 10 kΩ or higher

    NG
    OK