Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem. 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0121, P0487 AND/OR P0488)

CHECK DIESEL THROTTLE BODY ASSEMBLY (POWER SOURCE)

INSPECT DIESEL THROTTLE BODY ASSEMBLY

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

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

CHECK FUSE (EFI NO. 2 FUSE)

DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem

DTC P0487 Exhaust Gas Recirculation Throttle Position Control Circuit

DTC P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance


DESCRIPTION

The ECM opens and closes the intake shutter valve (throttle valve) using the rotary solenoid type actuator. Upon opening and closing the valve, the exhaust gas recirculation volume is properly controlled. Also, engine vibration and noise are reduced by closing the valve when the engine is stopped.

DTC No.
DTC Detection Condition
Trouble Area
P0121
Learning value of intake shutter is abnormal
(Determination of a malfunction is conducted within a given time after the ignition switch is turned from the ON position to off. If a malfunction is detected within this time, the MIL is illuminated and a DTC is set when the ignition switch is next turned to the ON position)
  1. Intake shutter stuck
  2. Intake shutter does not move smoothly
  3. Open or short in intake shutter circuit
  4. Open or short in intake shutter position sensor circuit
  5. Intake shutter position sensor (built into intake shutter valve)
  6. ECM
P0487
Open or short in intake shutter circuit
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
  1. Open or short in intake shutter circuit
  2. ECM
P0488
Target and actual positions of intake shutter are different
(The MIL is illuminated and a DTC is immediately set when a malfunction is detected)
  1. Intake shutter stuck
  2. Intake shutter does not move smoothly
  3. Open or short in intake shutter circuit
  4. Open or short in intake shutter position sensor circuit
  5. Intake shutter position sensor (built into intake shutter valve)
  6. ECM
УКАЗАНИЕ:
  1. DTC P0121 is set when the ignition switch is turned from the ON position to off.
  2. DTC P0487 is set when idling for more than 30 seconds after engine start.
  3. DTC P0488 is set when engine idling.

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem


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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0121, P0487 AND/OR P0488)

  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.

  1. Read the DTCs.

    Result:
    Result
    		Proceed to
    DTC P0121, P0487 and/or P0488 are output
    		A
    DTC P0121, P0487 and/or P0488, and P0122 and/or P0123 are output
    		B


B
GO TO DTC CHART (Нажмите здесь)
A


2.CHECK DIESEL THROTTLE BODY ASSEMBLY (POWER SOURCE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem

  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
    B67-2 (+B1) - Body ground
    		Ignition switch ON
    		9 to 14 V

  1. Reconnect the diesel throttle body assembly connector.



NG
Перейдите к шагу 6
OK


3.INSPECT DIESEL THROTTLE BODY ASSEMBLY


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem

  1. Disconnect the diesel throttle body assembly connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B67-1 (CL+) - B67-3 (CL-)
    		20°C (68°F)
    		0.3 to 100 Ω

  1. Reconnect the diesel throttle body assembly connector.



NG
REPLACE DIESEL THROTTLE BODY ASSEMBLY (Нажмите здесь)
OK


4.CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - BODY GROUND)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem

  1. Disconnect the diesel throttle body assembly connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    B67-3 (CL-) - Body ground
    		Always
    		Below 1 Ω

  1. Reconnect the diesel throttle body assembly connector.



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


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem

  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
    B67-1 (CL+) - B77-13 (LUSL)
    		Always
    		Below 1 Ω
    Standard resistance (check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B67-1 (CL+) or B77-13 (LUSL) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reconnect the diesel throttle body assembly connector.



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

REPLACE ECM (Нажмите здесь)

6.CHECK FUSE (EFI NO. 2 FUSE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Nd-Tv.Система Ecd. Dtc P0121 Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Problem

  1. Remove the EFI No. 2 fuse from the engine room relay block.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    EFI No. 2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE (EFI NO. 2 FUSE)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - EFI MAIN RELAY)