Dtc P0122 Throttle / Pedal Position Sensor / Switch A Circuit Low Input. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 1Nd-Tv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)

INSPECT ECM (VC VOLTAGE)

REPLACE DIESEL THROTTLE BODY ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS (DTC P0122 AND/OR P0123)

DTC P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input

DTC P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input

УКАЗАНИЕ:
  1. These DTCs are related to the intake shutter (throttle valve) position sensor.
  2. This electronic throttle system does not use a throttle cable.
  3. This intake shutter position sensor is a non-contact type.

DESCRIPTION

The intake shutter (throttle valve) position sensor is mounted on the intake shutter body and it detects the opening angle of the intake shutter. This sensor is electronically controlled and uses Hall-effect elements.

COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0122 Throttle / Pedal Position Sensor / Switch A Circuit Low Input


DTC No.
DTC Detection Condition
Trouble Area
P0122
Intake shutter position sensor output (VLU) is less than 0.2 V
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
  1. Diesel throttle body (intake shutter position sensor)
  2. Open or short in VLU circuit
  3. Open in VC circuit
  4. ECM
P0123
Intake shutter position sensor output (VLU) is more than 4.8 V
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
  1. Diesel throttle body (intake shutter position sensor)
  2. Open in E2 circuit
  3. VC and VLU circuits are short-circuited
  4. ECM
УКАЗАНИЕ:
These DTCs are set when the ignition switch is in the ON position.

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0122 Throttle / Pedal Position Sensor / Switch A Circuit Low Input


INSPECTION PROCEDURE

УКАЗАНИЕ:
Read freeze frame data using an 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.
1.CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0122 Throttle / Pedal Position Sensor / Switch A Circuit Low Input

  1. Disconnect the diesel throttle body assembly 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
    B77-28 (VVLU) - B40-1 (VC)
    		Always
    		Below 1 Ω
    B77-35 (VLU) - B40-3 (VTA)
    		Always
    		Below 1 Ω
    B77-14 (EVLU) - B40-2 (E2)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B77-28 (VVLU) or B40-1 (VC) - Body ground
    		Always
    		10 kΩ or higher
    B77-35 (VLU) or B40-3 (VTA) - Body ground
    		Always
    		10 kΩ or higher
    B77-14 (EVLU) or B40-2 (E2) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the diesel throttle body assembly connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)
OK


2.INSPECT ECM (VC VOLTAGE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0122 Throttle / Pedal Position Sensor / Switch A Circuit Low Input

  1. Disconnect the diesel throttle body assembly connector.

  1. Turn the ignition switch to the ON position.

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B40-1 (VC) - B40-2 (E2)
    		Ignition switch ON
    		4.5 to 5.5 V

  1. Reconnect the diesel throttle body assembly connector.



NG
REPLACE ECM (Нажмите здесь)
OK


3.REPLACE DIESEL THROTTLE BODY ASSEMBLY

  1. Replace diesel throttle body assembly (See page Нажмите здесь).


NEXT


4.CHECK WHETHER DTC OUTPUT RECURS (DTC P0122 AND/OR P0123)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Turn the tester on.

  1. Enter the following menu items: Powertrain / Engine and ECT / DTC / Clear.

  1. Clear the DTCs (See page Нажмите здесь).

  1. Let the engine idle for 60 seconds, and repeat quick engine RPM accelerations (to 2500 rpm) for 30 seconds.

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

  1. Read the DTCs.

    Result:
    Result
    		Proceed to
    DTC P0122 and/or P0123 are output
    		A
    DTC is not output
    		B


B
SYSTEM OK
A

REPLACE ECM (Нажмите здесь)