Dtc P0191 Fuel Rail Pressure Sensor Circuit Range / Performance. 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 P0191)


DTC P0191 Fuel Rail Pressure Sensor Circuit Range / Performance


DESCRIPTION

The ECM controls the internal fuel pressure of the common rail by using the supply pump and pressure control valve.

DTC No.
DTC Detection Condition
Trouble Area
P0191
After certain period of time has elapsed after engine stop (pressure control valve releases common rail internal pressure during this period), common rail internal pressure deviates from normal range.
(Determination of a malfunction is conducted within a given time after the ignition switch is turned from the ON position (IG) 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. Open or short in fuel pressure sensor circuit
  2. Fuel pressure sensor
  3. Open or short in pressure control valve circuit
  4. Pressure control valve
  5. ECM
УКАЗАНИЕ:
DTC P0191 is set when the engine idles for 30 seconds after the ignition switch was turned off.

WIRING DIAGRAM

Refer to DTC P0089 (See page Нажмите здесь) and DTC P0190 (See page Нажмите здесь).

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 P0191)
  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 P0191 is output
    A
    DTC P0191 and other DTCs are output
    B
    УКАЗАНИЕ:
    If any DTCs other than P0191 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (Нажмите здесь)
A

REPLACE COMMON RAIL ASSEMBLY (PRESSURE CONTROL VALVE AND FUEL PRESSURE SENSOR) (Нажмите здесь)