ECD SYSTEM(w/ DPF), Diagnostic DTC:P0201, P0202, P0203, P0204, P2148

DTC Code DTC Name
P0201 Injector Circuit / Open - (Cylinder 1)
P0202 Injector Circuit / Open - (Cylinder 2)
P0203 Injector Circuit / Open - (Cylinder 3)
P0204 Injector Circuit / Open - (Cylinder 4)
P2148 Exhaust Aftertreatment Fuel Injector Group "A" Supply Voltage 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.

Tech Tips

Injector driver is built into the ECM.

P0201
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idles for approximately 15 seconds

Open or short in injector circuit (cylinder No. 1) for 0.5 seconds or more

(1 trip detection logic)

  • Open or short in injector assembly circuit

  • Injector assembly

  • ECM
P0202
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idles for approximately 15 seconds

Open or short in injector circuit (cylinder No. 2) for 0.5 seconds or more

(1 trip detection logic)

  • Open or short in injector assembly circuit

  • Injector assembly

  • ECM
P0203
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idles for approximately 15 seconds

Open or short in injector circuit (cylinder No. 3) for 0.5 seconds or more

(1 trip detection logic)

  • Open or short in injector assembly circuit

  • Injector assembly

  • ECM
P0204
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idles for approximately 15 seconds

Open or short in injector circuit (cylinder No. 4) for 0.5 seconds or more

(1 trip detection logic)

  • Open or short in injector assembly circuit

  • Injector assembly

  • ECM
P2148
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idles for approximately 15 seconds

Short circuit in an injection bank is detected after all injector assemblies on the affected bank are actuated more than 12.

(1 trip detection logic)

  • Open or short in injector assembly circuit

  • ECM

Tech Tips


  • If DTC P0201, P0202, P0203, P0204 and/or P2148 is stored, the following symptoms may appear:


    • Engine stall

WIRING DIAGRAM

A01VJIEE01

CAUTION / NOTICE / HINT

Note

When replacing the ECM and/or injector assembly, the ECM needs Registration and Initialization Click here.

Tech Tips


  • 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.


    NG

    REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER Click here

    OK

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


    1. Disconnect the B6, B8, B10 and B12 injector assembly connectors.

    2. Disconnect the B104 ECM connector (for LHD).

    3. Disconnect the B103 ECM connector (for RHD).

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      B6-1 - B104-27 (IJ1+) Always Below 1 Ω
      B6 -2 - B104-57 (IJ1-) Always Below 1 Ω
      B8-1 - B14-26 (IJ2+) Always Below 1 Ω
      B8-2 - B104-56 (IJ2-) Always Below 1 Ω
      B10-1 - B104-25 (IJ3+) Always Below 1 Ω
      B10-2 - B104-55 (IJ3-) Always Below 1 Ω
      B12-1 - B104-24 (IJ4+) Always Below 1 Ω
      B12-2 - B104-54 (IJ4-) Always Below 1 Ω
      B6-1 or B104-27 (IJ1+) - Body ground Always 10 kΩ or higher
      B6-2 or B104-57 (IJ1-) - Body ground Always 10 kΩ or higher
      B8-1 or B104-26 (IJ2+) - Body ground Always 10 kΩ or higher
      B8-2 or B104-56 (IJ2-) - Body ground Always 10 kΩ or higher
      B10-1 or B104-25 (IJ3+) - Body ground Always 10 kΩ or higher
      B10-2 or B104-55 (IJ3-) - Body ground Always 10 kΩ or higher
      B12-1 or B104-24 (IJ4+) - Body ground Always 10 kΩ or higher
      B12-2 or B104-54 (IJ4-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      B6-1 - B103-27 (IJ1+) Always Below 1 Ω
      B6 -2 - B103-57 (IJ1-) Always Below 1 Ω
      B8-1 - B103-26 (IJ2+) Always Below 1 Ω
      B8-2 - B103-56 (IJ2-) Always Below 1 Ω
      B10-1 - B103-25 (IJ3+) Always Below 1 Ω
      B10-2 - B103-55 (IJ3-) Always Below 1 Ω
      B12-1 - B103-24 (IJ4+) Always Below 1 Ω
      B12-2 - B103-54 (IJ4-) Always Below 1 Ω
      B6-1 or B103-27 (IJ1+) - Body ground Always 10 kΩ or higher
      B6-2 or B103-57 (IJ1-) - Body ground Always 10 kΩ or higher
      B8-1 or B103-26 (IJ2+) - Body ground Always 10 kΩ or higher
      B8-2 or B103-56 (IJ2-) - Body ground Always 10 kΩ or higher
      B10-1 or B103-25 (IJ3+) - Body ground Always 10 kΩ or higher
      B10-2 or B103-55 (IJ3-) - Body ground Always 10 kΩ or higher
      B12-1 or B103-24 (IJ4+) - Body ground Always 10 kΩ or higher
      B12-2 or B103-54 (IJ4-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  4. REPAIR OR REPLACE HARNESS OR CONNECTOR


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER


    1. Replace the injector assembly of malfunctioning cylinder Click here.


    NEXT

  6. PERFORM REGISTRATION AND INITIALIZATION


    1. Register the injector assembly compensation code Click here.

    2. Perform Pilot Quantity Learning Values Reset Click here.


    NEXT

  7. BLEED AIR FROM FUEL SYSTEM


    1. Bleed air from fuel system Click here.


    NEXT

  8. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

    5. Start the engine.

    6. Allow the engine to idle for 15 seconds or more.

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

    8. Confirm that the DTC is not output again.


    NEXT

    END