Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001GH9M
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 03/2019]
Title: 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: P0107,P0108; Manifold Absolute Pressure / Barometric Pressure Circuit Low Input; 2020 MY Corolla [01/2019 - 03/2019]

DTC

P0107

Manifold Absolute Pressure / Barometric Pressure Circuit Low Input

DTC

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 it as 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 is 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

Comes on

DTC stored

P0108

Manifold Absolute Pressure / Barometric Pressure Circuit High Input

The output voltage from the manifold absolute pressure sensor is 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

HINT:

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 / MAP.

MAP

Malfunction

Approximately 0 kPa (0 psi)
  • Short to ground in PIM circuit to ground
  • Short in PIM circuit to EPIM circuit
  • Open in VCPM circuit

130 kPa (18.85 psi) or higher
  • Short in VCPM circuit to PIM circuit
  • Open in PIM circuit
  • Open in EPIM circuit

MONITOR DESCRIPTION

The ECM monitors the manifold absolute pressure sensor voltage and uses this value to calculate the intake manifold pressure. When the manifold absolute pressure sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the manifold absolute pressure sensor circuit, illuminates the MIL and stores a DTC.

Example:

When the manifold absolute pressure sensor output voltage remains below 0.5 V, or higher than 4.5 V for 0.5 seconds or more, 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

All of the following conditions are met

-

Time after starter on to off

2 seconds or more

Battery voltage

8 V or higher

Ignition switch

ON

Time after ignition switch off to ON

0.5 seconds or more

Starter

Off

TYPICAL MALFUNCTION THRESHOLDS

P0107

Manifold absolute pressure sensor voltage (Manifold absolute pressure)

Less than 0.5 V (Less than 0 kPa(abs) [0 psi(abs)])

P0108

Manifold absolute pressure sensor voltage (Manifold absolute pressure)

Higher than 4.5 V (Higher than 130 kPa(abs) [18.9 psi(abs)])

COMPONENT OPERATING RANGE

Manifold absolute pressure sensor voltage (Manifold absolute pressure)

0.5 to 4.5 V (0 to 130 kPa(abs) [0 to 18.9 psi(abs)])

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Turn the ignition switch to ON.
  7. Turn the Techstream on.
  8. Start the engine and wait 5 seconds or more.
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  10. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P0107 or P0108.
  13. 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

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
  14. If the judgment result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs.

    Click here 2020 MY Corolla [01/2019 - 03/2019]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

    HINT:

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

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

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 TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)

*a

Front view of wire harness connector

(to Manifold Absolute Pressure Sensor)

HINT:

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

(a) Disconnect the manifold absolute pressure sensor connector.

(b) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

C115-3 (VC) - C115-1 (E2)

Ignition switch ON

4.75 to 5.25 V

C115-2 (PIM) - C115-1 (E2)

Ignition switch ON

3.0 to 5.25 V

(d) Turn the ignition switch off and wait for at least 30 seconds.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C115-3 (VC) - C115-2 (PIM)

Ignition switch off

171 to 189 kΩ

C115-1 (E2) - Body ground

Always

Below 1 Ω
OK

REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

NG

2.

CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)

(a) Disconnect the manifold absolute pressure sensor connector.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C115-3 (VC) - C77-77 (VCPM)

Always

Below 1 Ω

C115-1 (E2) - C77-76 (EPIM)

Always

Below 1 Ω

C115-2 (PIM) - C77-78 (PIM)

Always

Below 1 Ω

C115-2 (PIM) or C77-78 (PIM) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR