Dtc P0088 Fuel Rail / System Pressure - Too High. Corolla Auris

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

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0088 AND/OR P1229)

INSPECT SUPPLY PUMP ASSEMBLY (SUCTION CONTROL VALVE)

CHECK IF DTC OUTPUT RECURS

CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)

REPLACE COMMON RAIL ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS

DTC P0088 Fuel Rail / System Pressure - Too High

DTC P1229 Fuel Pump System


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
P0088
Internal fuel pressure of common rail is too high:
Fuel pressure exceeds 200 MPa (2039 kgf/cm2, 29007 psi)
(1-trip detection logic)
  1. Supply pump (suction control valve)
  2. Common rail assembly (pressure discharge valve)
  3. Short in supply pump (suction control valve) circuit
  4. ECM
P1229
Fuel over-feed:
Internal fuel pressure continues exceeding target fuel pressure despite ECM closing suction control valve
(1-trip detection logic)
  1. Short in supply pump (suction control valve) circuit
  2. Supply pump (suction control valve)
  3. ECM

УКАЗАНИЕ:
  1. DTC P0088 and P1229 can be detected if the vehicle is driven at 50 km/h (31 mph) for 5 minutes.
  2. For more information on the supply pump (suction control valve) and common rail system, refer to the system description (See page Нажмите здесь).
  3. When DTC P0088 and/or P1229 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

MONITOR DESCRIPTION

  1. P0088 (Internal fuel pressure too high):
    The ECM sets this DTC if the fuel pressure inside the common rail is more than 200 MPa (2039 kgf/cm2, 29007 psi). This DTC indicates that: 1) the suction control valve may be stuck open or 2) there may be a short in the suction control valve circuit.
    If this DTC is set, the ECM enters fail-safe mode and limits the engine power. The fail-safe mode continues until the ignition switch is turned off.
  1. P1229 (Fuel over-feed):
    The ECM sets this DTC if the actual fuel pressure inside the common rail remains higher than the target fuel pressure, despite the ECM closing the suction control valve. This DTC indicates that the suction control valve may be stuck open, or there may be a short in its circuit. Under this condition, the pressure discharge valve operates frequently.
    If this DTC is set, the ECM enters fail-safe mode and limits the engine power. The fail-safe mode continues until the ignition switch is turned off.

MONITOR STRATEGY


P0088:
Required sensor
Fuel pressure sensor
Frequency of operation
Continuous
Duration
1 second
MIL operation
1 driving cycle

P1229:
Required sensor
Fuel pressure sensor
Frequency of operation
Continuous
Duration
10 minutes
MIL operation
1 driving cycle

TYPICAL ENABLING CONDITIONS


P0088:
Specification
The monitor will not run if the fuel pressure sensor or suction control valve circuit is malfunctioning.

P1229:
Item
Specification
Target fuel pressure variation
Small
The monitor will not run if the fuel pressure sensor or suction control valve circuit is malfunctioning.

TYPICAL MALFUNCTION THRESHOLDS


P0088:
Detection Criteria
Threshold
Fuel pressure sensor
200 MPa (2039 kgf/cm2, 29007 psi) or more

P1229:
Detection Criteria
Threshold
The internal fuel pressure of the common rail when the suction control valve is closed.
Remains higher than target fuel pressure

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd. Dtc P0088 Fuel Rail / System Pressure - Too High


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.CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0088 AND/OR P1229)

  1. Connect the intelligent tester to the DLC3.

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

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

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC P0088 and/or P1229 are output
    		A
    DTC P0190, P0192 and/or P0193 are output
    		B


B
GO TO DTC CHART (Нажмите здесь)
A


2.INSPECT SUPPLY PUMP ASSEMBLY (SUCTION CONTROL VALVE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd. Dtc P0088 Fuel Rail / System Pressure - Too High

  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


3.CHECK IF 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. Disconnect the suction control valve connector and then start the engine. Wait for 1 minute.

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

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC is not output or engine does not start
    		A
    DTC P1229 is output
    		B

  1. Reconnect the suction control valve connector.



B
REPLACE SUPPLY PUMP ASSEMBLY (Нажмите здесь)
A


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd. Dtc P0088 Fuel Rail / System Pressure - Too High

  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


5.REPLACE COMMON RAIL ASSEMBLY

  1. Replace the common rail assembly (See page Нажмите здесь).


NEXT


6.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. Start the engine and drive the vehicle for approximately 15 minutes.

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

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC P0088 and/or P1229 are output
    		A
    DTC is not output
    		B


B
SYSTEM IS OK
A

REPLACE ECM (Нажмите здесь)