Dtc P0627 Fuel Pump Control Circuit / Open. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 2Ad-Fhv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT SUPPLY PUMP ASSEMBLY

CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)

CHECK WHETHER DTC OUTPUT RECURS

DTC P0627 Fuel Pump Control Circuit / Open


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
P0627
Open or short in suction control valve circuit for more than 0.5 seconds
(1-trip detection logic)
  1. Open or short in suction control valve circuit
  2. Suction control valve
  3. ECM

УКАЗАНИЕ:
  1. For more information on the supply pump (suction control valve) and the common rail system, refer to the system description (See page Нажмите здесь).
  2. When DTC P0627 is set, check the internal fuel pressure of the common rail by entering the following menus on the intelligent tester: Powertrain / Engine and ECT / Data List / Fuel Press.

Reference:
Engine Speed
Fuel Pressure
Idling
Approximately 37 to 43 MPa
3000 rpm (No engine load)
Approximately 60 to 66 MPa

WIRING DIAGRAM

Refer to DTC P0088 (See page Нажмите здесь).

INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
  1. After replacing the ECM, the new ECM needs registration (See page Нажмите здесь) and initialization (See page Нажмите здесь).
  2. After replacing a supply pump, the ECM needs 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.INSPECT SUPPLY PUMP ASSEMBLY


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd. Dtc P0627 Fuel Pump Control Circuit / Open

  1. Disconnect the suction control valve connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		20°C (68°F)
    		1.9 to 2.3 Ω

  1. Reconnect the suction control valve connector.



NG
REPLACE SUPPLY PUMP ASSEMBLY (Нажмите здесь)
OK


2.CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd. Dtc P0627 Fuel Pump Control Circuit / Open

  1. Disconnect the suction control valve 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
    B39-1 - B31-42 (PCV+)
    		Always
    		Below 1 Ω
    B39-2 - B31-41 (PCV-)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B39-1 or B31-42 (PCV+) - Body ground
    		Always
    		10 kΩ or higher
    B39-2 or B31-41 (PCV-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the suction control valve connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (SUCTION CONTROL VALVE - ECM)
OK


3.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and turn the tester on.

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

  1. Turn the ignition switch on (IG) and leave it for approximately 1 minute.

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

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC P0627 is output
    		A
    DTC is not output
    		B


B
CHECK FOR INTERMITTENT PROBLEMS (Нажмите здесь)
A

REPLACE ECM (Нажмите здесь)