SFI SYSTEM, Diagnostic DTC:P0122, P0123, P0222, P0223

DTC Code DTC Name
P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
P0222 Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
P0223 Throttle / Pedal Position Sensor / Switch "B" Circuit High Input

DESCRIPTION

Refer to DTC P0121 Click here.

DTC No. DTC Detection Condition Trouble Area
P0122

Output voltage of VTA1 0.2 V or less for 0.14 seconds or more

(1 trip detection logic)

  • Throttle position sensor (built into throttle with motor body assembly)


  • Open or short in VTA1 circuit


  • Open in VC circuit


  • ECM
P0123

Output voltage of VTA1 4.6 V or more

(1 trip detection logic)

  • Throttle position sensor (built into throttle with motor body assembly)


  • Open in VTA1 circuit


  • Open in E2 circuit


  • Short between VC and VTA1 circuits


  • ECM
P0222

Output voltage of VTA2 0.156 V or less when engine speed is 1200 rpm or more for 0.14 seconds or more

(1 trip detection logic)

  • Throttle position sensor (built into throttle with motor body assembly)


  • Open or short in VTA2 circuit


  • Open in VC circuit


  • ECM
P0223

Output voltage of VTA2 4.883 V or more

(1 trip detection logic)

  • Throttle position sensor (built into throttle with motor body assembly)


  • Open in VTA2 circuit


  • Open in E2 circuit


  • Short between VC and VTA2 circuits


  • ECM

Tech Tips


  • Detection is always being performed for P0122, P0123 and P0223 when the ignition switch is ON or the engine is running.

  • Detection for P0222 is performed when the engine speed is 1200 rpm or higher.

WIRING DIAGRAM

Refer to DTC P0121 Click here.

CAUTION / NOTICE / HINT

Note

Perform electronic throttle learning after replacing the ECM or throttle with motor body assembly Click here.

Tech Tips

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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM)


    1. Disconnect the throttle with motor body assembly 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
      B89-3 (VC) - B87-55 (VCTA) Always Below 1 Ω
      B89-6 (VTA) - B87-14 (VTA1) Always Below 1 Ω
      B89-5 (VTA2) - B87-15 (VTA2) Always Below 1 Ω
      B89-2 (E2) - B87-35 (ETA) Always Below 1 Ω
      B89-3 (VC) or B87-55 (VCTA) - Body ground Always 10 kΩ or higher
      B89-6 (VTA) or B87-14 (VTA1) - Body ground Always 10 kΩ or higher
      B89-5 (VTA2) or B87-15 (VTA2) - Body ground Always 10 kΩ or higher
      B89-2 (E2) or B87-35 (ETA) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK TERMINAL VOLTAGE (THROTTLE WITH MOTOR BODY ASSEMBLY)

    A01VFDGE02
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Throttle with Motor Body Assembly)

    1. Disconnect the throttle with motor body assembly connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B89-3 (VC) - B89-2 (E2) Ignition switch ON 4.5 to 5.5 V

    NG

    REPLACE ECM Click here

    OK

  3. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY


    1. Replace the throttle with motor body assembly Click here.

    2. Perform electronic throttle learning Click here.


    NEXT

  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P0122, P0123, P0222 OR P0223)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear DTCs Click here.

    5. Turn the ignition switch off and wait for 30 seconds.

    6. Turn the tester on.

    7. Start the engine.

    8. Run the engine at an engine speed of 1200 rpm or higher.

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

    10. Read the DTCs.

      OK
      DTC is not output.

    OK

    END

    NG

    REPLACE ECM Click here