Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

When using intelligent tester:

READ VALUE USING INTELLIGENT TESTER (INTAKE MANIFOLD PRESSURE)

CHECK CONNECTION OF VACUUM HOSE

INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR

CHECK ECM (VC VOLTAGE)

CHECK ECM (PIM VOLTAGE)

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

When not using intelligent tester:

INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR

CHECK ECM (VC VOLTAGE)

CHECK ECM (PIM VOLTAGE)

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

DTC 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction


DESCRIPTION

The manifold absolute pressure sensor generates voltage by the vacuum value as shown in the illustration. The voltage of the manifold absolute pressure sensor is one of the factors used to determine the injection volume and injection timing.
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

DTC No.
DTC Detection Condition
Trouble Area
35
Open or short in manifold absolute pressure sensor circuit for 2 sec. or more
  1. Open or short in manifold absolute pressure sensor circuit
  2. Manifold absolute pressure sensor
  3. ECM

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction


INSPECTION PROCEDURE

HINT:
  1. If DTCs that are related to different systems are output simultaneously while terminal E2 is used as a ground terminal, terminal E2 may be open.
  2. Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

When using intelligent tester:

1.READ VALUE USING INTELLIGENT TESTER (INTAKE MANIFOLD PRESSURE)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON.

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

    OK:
    The same as atmospheric pressure.
    HINT:
    When DTC 35 is present, the type of malfunction can be determined based on the manifold absolute pressure (see below).
    Intake Manifold Pressure (kPa)
    		Malfunction
    Approx. 0
    1. Short in PIM circuit
    192 or more
    1. Open or short in VC circuit
    2. Open in PIM circuit
    3. Open in E2 circuit


NG
Go to step 3
OK


2.CHECK CONNECTION OF VACUUM HOSE

  1. Check that the vacuum hose is securely connected and that there are no leaks from the connection.

    OK:
    The vacuum hose is securely connected and there are no leaks from the connection.


NG
REPAIR OR REPLACE VACUUM HOSE
OK

CHECK FOR INTERMITTENT PROBLEMS

3.INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR

  1. Inspect the manifold absolute pressure sensor (Toyota Fortuner RM0000012W9002X_01_0001.html).



NG
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
OK


4.CHECK ECM (VC VOLTAGE)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Turn the ignition switch ON.

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E21-1 (VC) - E21-9 (E2)
    		4.5 to 5.5 V


NG
REPLACE ECM
OK


5.CHECK ECM (PIM VOLTAGE)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Turn the ignition switch ON.

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E21-2 (PIM) - E21-9 (E2)
    		1.0 to 2.2 V


OK
REPLACE ECM
NG


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


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Disconnect the M3 manifold absolute pressure sensor connector.

  1. Disconnect the E21 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    M3-3 (VC) - E21-1 (VC)
    		Below 1 Ω
    M3-2 (PIM) - E21-2 (PIM)
    		Below 1 Ω
    M3-1 (E2) - E21-9 (E2)
    		Below 1 Ω
    E21-1 (VC) - E21-2 (PIM)
    		10 kΩ or higher
    E21-1 (VC) - E21-9 (E2)
    		10 kΩ or higher
    E21-2 (PIM) - E21-9 (E2)
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

CHECK FOR INTERMITTENT PROBLEMS


When not using intelligent tester:

1.INSPECT MANIFOLD ABSOLUTE PRESSURE SENSOR

  1. Inspect the manifold absolute pressure sensor (Toyota Fortuner RM0000012W9002X_01_0001.html).



NG
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
OK


2.CHECK ECM (VC VOLTAGE)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Turn the ignition switch ON.

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E21-1 (VC) - E21-9 (E2)
    		4.5 to 5.5 V


NG
REPLACE ECM
OK


3.CHECK ECM (PIM VOLTAGE)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Turn the ignition switch ON.

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E21-2 (PIM) - E21-9 (E2)
    		1.0 to 2.2 V


OK
REPLACE ECM
NG


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


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.5L-E Engine Control System.Ecd System. Dtc 35 Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction

  1. Disconnect the M3 manifold absolute pressure sensor connector.

  1. Disconnect the E21 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    M3-3 (VC) - E21-1 (VC)
    		Below 1 Ω
    M3-2 (PIM) - E21-2 (PIM)
    		Below 1 Ω
    M3-1 (E2) - E21-9 (E2)
    		Below 1 Ω
    E21-1 (VC) - E21-2 (PIM)
    		10 kΩ or higher
    E21-1 (VC) - E21-9 (E2)
    		10 kΩ or higher
    E21-2 (PIM) - E21-9 (E2)
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

CHECK FOR INTERMITTENT PROBLEMS