Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
3Zr-Fae Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

CHECK VACUUM SENSOR (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (VACUUM SENSOR - ECM)

REPLACE VACUUM SENSOR

CHECK WHETHER DTC OUTPUT RECURS

CHECK HARNESS AND CONNECTOR (VACUUM SENSOR - ECM)

DTC P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

DTC P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input

DTC P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input


DESCRIPTION

The vacuum sensor uses a built-in sensor to detect pressure inside the intake manifold as an absolute pressure and outputs a voltage. Based on the voltage from the vacuum sensor, the ECM controls the purge VSV and corrects any errors in the air fuel ratio due to changes in pressure.
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

DTC No.
DTC Detection Condition
Trouble Area
P0105
Either condition is met (1 trip detection logic):
(a) The output voltage from the vacuum sensor remains below 0.5 V for 0.5 seconds.
(b) The output voltage from the vacuum sensor remains higher than 4.5 V for 0.5 seconds.
  1. Open or short in vacuum sensor circuit
  2. Vacuum sensor
  3. ECM
P0107
The vacuum sensor voltage is below 0.5 V for 0.5 seconds (1 trip detection logic).
  1. Open or short in vacuum sensor circuit
  2. Vacuum sensor
  3. ECM
P0108
The vacuum sensor voltage is higher than 4.5 V for 0.5 seconds (1 trip detection logic).
  1. Open or short in vacuum sensor circuit
  2. Vacuum sensor
  3. ECM
HINT:
When any of these DTCs are output, check the manifold absolute pressure using the intelligent tester. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAP.

MAP
Malfunction
Approximately 0 kPa
  1. Short in PIM circuit to ground
  2. Short in PIM circuit to E2 circuit
130 kPa or higher
  1. Open in VC circuit or short in VC circuit to PIM circuit
  2. Open in PIM circuit
  3. Open in E2 circuit

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit


INSPECTION PROCEDURE

HINT:
  1. If DTCs relating to different systems are stored, and they share terminal E2 as their ground, check this ground circuit first.
  2. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
1.READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Read the MAP value.

    Result
    Result
    		Proceed to
    0 kPa
    		A
    130 kPa or higher
    		B
    Approximately same as atmospheric pressure
    		C


B
Go to step 3

C
CHECK FOR INTERMITTENT PROBLEMS (RAV4_ACA30 RM000000PDQ0JYX.html)
A


2.READ VALUE USING INTELLIGENT TESTER (MANIFOLD ABSOLUTE PRESSURE)

  1. Connect the intelligent tester to the DLC3.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

  1. Disconnect the vacuum sensor connector.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Check how the "MAP" displayed on the intelligent tester changes compared to the value measured before disconnecting the connector of the vacuum sensor.

    Result
    Result
    		Proceed to
    Changes (From approximately 0 kPa (0 mmHg, 0 in.Hg) to a value of 130 kPa (975 mmHg, 38.4 in.Hg) or higher)
    		A
    Does not change (Approximately 0 kPa (0 mmHg, 0 in.Hg))
    		B
    Text in Illustration
    *1
    		Front view of wire harness connector
    (to Vacuum Sensor)

  1. Reconnect the vacuum sensor connector.



B
Go to step 7
A

REPLACE VACUUM SENSOR (RAV4_ACA30 RM0000037KH005X.html)

3.CHECK VACUUM SENSOR (POWER SOURCE)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

  1. Disconnect the vacuum sensor connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B126-3 (VC) - B126-1 (E2)
    		Ignition switch ON
    		4.5 to 5.5 V
    Text in Illustration
    *1
    		Front view of wire harness connector
    (to Vacuum Sensor)

  1. Reconnect the vacuum sensor connector.



NG
Go to step 7
OK


4.CHECK HARNESS AND CONNECTOR (VACUUM SENSOR - ECM)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

  1. Disconnect the vacuum sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    B126-2 (PIM) - B32-114 (PIM)
    		Always
    		Below 1 Ω
    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    B126-2 (PIM) or B32-114 (PIM) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *1
    		Front view of wire harness connector
    (to Vacuum Sensor)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the ECM connector.

  1. Reconnect the vacuum sensor connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (VACUUM SENSOR - ECM)
OK


5.REPLACE VACUUM SENSOR

  1. Replace the vacuum sensor (RAV4_ACA30 RM0000037KH005X.html).


NEXT


6.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (RAV4_ACA30 RM000000PDK0M7X.html).

  1. Turn the ignition switch off.

  1. Turn the ignition switch to ON and turn the tester on.

  1. After the engine is started, race the engine for 1 second.

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

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    No DTC is output
    		A
    DTCs P0105, P0107 and/or P0108 are output
    		B


B
REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)
A

END

7.CHECK HARNESS AND CONNECTOR (VACUUM SENSOR - ECM)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System. Dtc P0105 Manifold Absolute Pressure / Barometric Pressure Circuit

  1. Disconnect the vacuum sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    B126-2 (PIM) - B32-114 (PIM)
    		Always
    		Below 1 Ω
    B126-3 (VC) - B32-67 (VCPM)
    		Always
    		Below 1 Ω
    B126-1 (E2) - B32-91 (EPIM)
    		Always
    		Below 1 Ω
    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    B126-2 (PIM) or B32-114 (PIM) - Body ground
    		Always
    		10 kΩ or higher
    B126-3 (VC) or B32-67 (VCPM) - Body ground
    		Always
    		10 kΩ or higher
    B126-1 (E2) or B32-91 (EPIM) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *1
    		Front view of wire harness connector
    (to Vacuum Sensor)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the ECM connector.

  1. Reconnect the vacuum sensor connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (VACUUM SENSOR - ECM)
OK

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)