SFI SYSTEM, Diagnostic DTC:P0106

DTC Code DTC Name
P0106 Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem

DESCRIPTION

The manifold absolute pressure sensor detects the intake manifold pressure as a voltage using a built-in sensor. The ECM calculates intake manifold pressure based on this voltage and also calculates the EGR valve assembly and purge VSV opening amount according to changes in the intake manifold pressure, and detects errors in the pressure sensor using the changes in pressure.

A011W6UE01
DTC No. DTC Detection Condition Trouble Area
P0106 Intake manifold pressure measured after engine start drops by less than 2 kPa(gauge) [15 mmHg(gauge)] compared to the intake manifold pressure (atmospheric pressure) measured before engine start (2 trip detection logic).

  • Intake system

  • Manifold absolute pressure sensor

MONITOR DESCRIPTION

When the intake manifold pressure measured after engine start drops by less than 2 kPa(gauge) [15 mmHg(gauge)] compared to the intake manifold pressure (atmospheric pressure) measured before engine start, the ECM interprets this as a malfunction in the manifold absolute pressure sensor and stores DTC P0106.

MONITOR STRATEGY

Related DTCs P0106: Manifold absolute pressure sensor stuck
Required Sensors/Components (Main) Manifold absolute pressure sensor
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 6 seconds
MIL Operation 2 driving cycles
Sequence of Operation None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

P0010 (VVT oil control valve)

P0011 (VVT system - advance)

P0012 (VVT system - retard)

P0016 (VVT system - misalignment)

P0107, P0108 (Manifold absolute pressure)

P0112, P0113 (Intake air temperature sensor)

P0115, P0117, P0118 (Engine coolant temperature sensor)

P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)

P0125 (Insufficient coolant temperature for closed loop fuel control)

P0335 (Crankshaft position sensor)

P0340, P0342, P0343 (Camshaft position sensor)

P0401 (EGR system (closed))

P106A (Evaporative emission control system pressure sensor - Manifold pressure sensor correlation)
Auxiliary battery voltage 10.5 V or higher
Engine coolant temperature 30°C (86°F) or higher
Intake air temperature -10°C (14°F) or higher
Engine speed 1000 rpm or more
Throttle valve Close
EGR valve Close
Atmospheric pressure 76 kPa(abs) [570 mmHg(abs)] or higher

TYPICAL MALFUNCTION THRESHOLDS

Difference between manifold absolute pressure and atmospheric pressure Higher than -2 kPa(gauge) [-15 mmHg(gauge)]

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 warm it up (until the engine coolant temperature is 75°C (167°F) or higher).

  8. Move the shift lever to N.

  9. Idle the engine for 10 seconds or more [A].

  10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].

  11. 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.

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

  13. Input the DTC: P0106.

  14. 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.

    • If the judgment result shows INCOMPLETE or N/A, perform steps [A] and [B] again.

  15. If 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.

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. CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P0106)

    1. Connect the Techstream to the DLC3.

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

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

    4. Read the DTCs.

      Result
      Result Proceed to
      DTC P0106 is output A
      DTC P0106 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0106 are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING TECHSTREAM (MAP)

    1. Connect the Techstream to the DLC3.

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

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

    4. Read the MAP value at power switch on (IG).

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

    6. Start the engine and warm it up.

    7. Read the MAP value at idling.

      Standard
      Engine condition Techstream Display
      Power switch on (IG) 80 to 110 kPa(abs) [600 or 825 mmHg(abs)]
      Idling 20 to 40 kPa(abs) [150 to 300 mmHg(abs)]
    NG

    CHECK INTAKE SYSTEM Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  3. CHECK INTAKE SYSTEM

    1. Check the intake system for vacuum leaks Click here.

      OK
      No leaks in the intake system.

      Tech Tips

      Perform "Inspection After Repair" after repairing or replacing the intake system Click here.

    NG

    REPAIR OR REPLACE INTAKE SYSTEM

    OK

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here