Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 1Ad-Ftv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK EGR VALVE POSITION SENSOR POWER SOURCE

INSPECT EGR VALVE ASSEMBLY (EGR VALVE POSITION SENSOR)

CHECK HARNESS AND CONNECTOR (EGR VALVE POSITION SENSOR - ECM)

DTC P0405 Exhaust Gas Recirculation Sensor "A" Circuit Low

DTC P0406 Exhaust Gas Recirculation Sensor "A" Circuit High


DESCRIPTION

The EGR valve position sensor is mounted on the EGR valve and used for detecting the lift amount of the valve. The lift amount detected by the sensor is provided to the ECM as feedback. The ECM then regulates the lift amount of the valve in accordance with engine running conditions.

DTC No.
DTC Detection Condition
Trouble Area
P0405
EGR valve position sensor output voltage is less than 0.1 V for more than 5 seconds
(1-trip detection logic)
  1. Open or short in EGR valve position sensor circuit
  2. EGR valve position sensor
  3. ECM
P0406
EGR valve position sensor output voltage is more than 4.9 V for more than 5 seconds
(1-trip detection logic)
  1. Open or short in EGR valve position sensor circuit
  2. EGR valve position sensor
  3. ECM

УКАЗАНИЕ:
  1. After confirming DTCs P0405 and P0406, check the EGR valve opening angle condition by entering the following menus on the intelligent tester: Powertrain / Engine and ECT / Data List / EGR Position.
  2. The result values below are for when the ignition switch is on (IG) (engine is stopped), or when the engine is fully warmed-up and idling.

Result
Condition
Changes between 0.3 V and 4.2 V
Normal
Less than 0.1 V
P0405 (Low input voltage)
More than 4.9 V
P0406 (High input voltage)

MONITOR DESCRIPTION

When output voltage of the EGR valve position sensor deviates from the normal operating range of 0.1 to 4.9 V for more than 0.5 seconds, the ECM interprets this as a malfunction of the sensor circuit, and illuminates the MIL.
COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low


INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
After replacing the ECM, the new ECM needs registration (See page Нажмите здесь) and initialization (See page Нажмите здесь).
УКАЗАНИЕ:
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 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.CHECK EGR VALVE POSITION SENSOR POWER SOURCE


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low

  1. Disconnect the EGR valve position sensor connector.

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B51-3 (VC) - B51-2 (E2)
    		Ignition switch on (IG)
    		4.5 to 5.5 V

  1. Reconnect the EGR valve position sensor connector.



NG
Перейдите к шагу 3
OK


2.INSPECT EGR VALVE ASSEMBLY (EGR VALVE POSITION SENSOR)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low

  1. Disconnect the EGR valve position sensor connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 (VC) - 2 (E2)
    		20°C (68°F)
    		3.5 to 6.5 kΩ
    4 (EGLS) - 2 (E2)
    		20°C (68°F), EGR valve: Fully open
    		3.9 kΩ
    4 (EGLS) - 2 (E2)
    		20°C (68°F), EGR valve: Fully closed
    		1.0 kΩ

  1. Reconnect the EGR valve position sensor connector.



NG
REPLACE EGR VALVE ASSEMBLY (Нажмите здесь)
OK


3.CHECK HARNESS AND CONNECTOR (EGR VALVE POSITION SENSOR - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 1Ad-Ftv.Система Ecd. Dtc P0405 Exhaust Gas Recirculation Sensor A Circuit Low

  1. Disconnect the EGR valve position 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
    B51-3 (VC) - B31-72 (VCEG)
    		Always
    		Below 1 Ω
    B51-4 (EGLS) - B31-118 (EGLS)
    		Always
    		Below 1 Ω
    B51-2 (E2) - B31-95 (EEGL)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B51-3 (VC) or B31-72 (VCEG) - Body ground
    		Always
    		10 kΩ or higher
    B51-4 (EGLS) or B31-118 (EGLS) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the EGR valve position sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (EGR VALVE POSITION SENSOR - ECM)
OK

REPLACE ECM (Нажмите здесь)