ECD SYSTEM, Diagnostic DTC:P0262,P0265,P0268 and P0271

DTC Code DTC Name
P0262 Cylinder 1 Injector "A" Circuit High
P0265 Cylinder 2 Injector "A" Circuit High
P0268 Cylinder 3 Injector "A" Circuit High
P0271 Cylinder 4 Injector "A" Circuit High

DESCRIPTION

The injector assemblies are installed in the cylinder head and inject fuel into the cylinders based on the signals from the ECM.

Tip:

  • Injector driver is built into the ECM.

  • For more information on the injector assembly and fuel injection control, refer to System Description.

    Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0262

Cylinder 1 Injector "A" Circuit High

Short circuit of the power stage low-side (cylinder No. 1).

(3 trip detection logic)

  • Open or short in No. 1 injector assembly circuit

  • No. 1 injector assembly

  • ECM

Comes on

DTC stored

P0265

Cylinder 2 Injector "A" Circuit High

Short circuit of the power stage low-side (cylinder No. 2).

(3 trip detection logic)

  • Open or short in No. 2 injector assembly circuit

  • No. 2 injector assembly

  • ECM

Comes on

DTC stored

P0268

Cylinder 3 Injector "A" Circuit High

Short circuit of the power stage low-side (cylinder No. 3).

(3 trip detection logic)

  • Open or short in No. 3 injector assembly circuit

  • No. 3 injector assembly

  • ECM

Comes on

DTC stored

P0271

Cylinder 4 Injector "A" Circuit High

Short circuit of the power stage low-side (cylinder No. 4).

(3 trip detection logic)

  • Open or short in No. 4 injector assembly circuit

  • No. 4 injector assembly

  • ECM

Comes on

DTC stored
Tip:

  • If DTC P0262, P0265, P0268 and/or P0271 is stored, the following symptoms may appear:

    • Engine stall

WIRING DIAGRAM

Refer to DTC P0201.

Click here

CAUTION / NOTICE / HINT

Note:

When replacing the ECM and/or injector assembly, the ECM needs registration and initialization.

Click here

Tip:

  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. 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.

PROCEDURE

  1. INSPECT INJECTOR ASSEMBLY

    1. Inspect the injector assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDERClick here

    OK

  2. CHECK HARNESS AND CONNECTOR (INJECTOR ASSEMBLY - ECM)

    1. Disconnect the injector assembly connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      I1-2 (#10) - B112-29 (IJ1+)

      Always

      Below 1 Ω

      I1-1 (#1) - B112-59 (IJ1-)

      Always

      Below 1 Ω

      I2-2 (#20) - B112-28 (IJ2+)

      Always

      Below 1 Ω

      I2-1 (#2) - B112-58 (IJ2-)

      Always

      Below 1 Ω

      I3-2 (#30) - B112-27 (IJ3+)

      Always

      Below 1 Ω

      I3-1 (#3) - B112-57 (IJ3-)

      Always

      Below 1 Ω

      I4-2 (#40) - B112-26 (IJ4+)

      Always

      Below 1 Ω

      I4-1 (#4) - B112-56 (IJ4-)

      Always

      Below 1 Ω

      I1-2 (#10) or B112-29 (IJ1+) - Body ground

      Always

      10 kΩ or higher

      I1-1 (#1) or B112-59 (IJ1-) - Body ground

      Always

      10 kΩ or higher

      I2-2 (#20) or B112-28 (IJ2+) - Body ground

      Always

      10 kΩ or higher

      I2-1 (#2) or B112-58 (IJ2-) - Body ground

      Always

      10 kΩ or higher

      I3-2 (#30) or B112-27 (IJ3+) - Body ground

      Always

      10 kΩ or higher

      I3-1 (#3) or B112-57 (IJ3-) - Body ground

      Always

      10 kΩ or higher

      I4-2 (#40) or B112-26 (IJ4+) - Body ground

      Always

      10 kΩ or higher

      I4-1 (#4) or B112-56 (IJ4-) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTORClick here

    OK

  3. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  4. REPAIR OR REPLACE HARNESS OR CONNECTOR

    1. Repair or replace the harness or connector.

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  5. REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER

    1. Replace the injector assembly of malfunctioning cylinder.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  6. PERFORM REGISTRATION

    1. Register the injector assembly compensation code.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes

    8. Confirm that the DTC is not output again.

    Result

    Proceed to

    NEXT
    NEXT

    END