SFI SYSTEM, Diagnostic DTC:P0201, P0202, P0203, P0204, P0205, P0206, P062D

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)
P0205 Injector Circuit / Open - (Cylinder 5)
P0206 Injector Circuit / Open - (Cylinder 6)
P062D No. 1 Fuel Injector Driver Circuit Performance

DESCRIPTION

The high speed activation of the high pressure fuel injector is possible through the high-voltage, rapidrecharge DC/DC converter. Using high pressure fuel, the atomized fuel's injection timing can be accurately controlled, which decreases emissions and fuel consumption. The steady ECM checks the injector driver movement. When the injector driver or injector has a malfunction, the injection control of the relevant cylinder is stopped or power to the injector relay is cut. Then the ECM illuminates the MIL and sets a DTC.

DTC No. DTC Detection Condition Trouble Area
P0201

Either of following is detected (1 trip detection logic):


  • INJ1 signal (#1) is not input for 20 consecutive revolutions

  • INJ1 signal (#4) is not input 20 times or more, and INJ1 signal (#1) is not input 15 times or more

  • Open or short in injector driver (EDU) circuit

  • Injector driver (EDU)

  • Fuel injector assembly

  • ECM
P0202

Either of following is detected (1 trip detection logic):


  • INJ2 signal (#2) is not input for 20 consecutive revolutions

  • INJ2 signal (#5) is not input 20 times or more, and INJ2 signal (#2) is not input 15 times or more
P0203

Either of following is detected (1 trip detection logic):


  • INJ3 signal (#3) is not input for 20 consecutive revolutions

  • INJ3 signal (#6) is not input 20 times or more, and INJ3 signal (#3) is not input 15 times or more
P0204

Either of following is detected (1 trip detection logic):


  • INJ1 signal (#4) is not input for 20 consecutive revolutions

  • INJ1 signal (#1) is not input 20 times or more, and INJ1 signal (#4) is not input 15 times or more
P0205

Either of following is detected (1 trip detection logic):


  • INJ2 signal (#5) is not input for 20 consecutive revolutions

  • INJ2 signal (#2) is not input 20 times or more, and INJ2 signal (#5) is not input 15 times or more
P0206

Either of following is detected (1 trip detection logic):


  • INJ3 signal (#6) is not input for 20 consecutive revolutions

  • INJ3 signal (#3) is not input 20 times or more, and INJ3 signal (#6) is not input 15 times or more
P062D

INJ1, INJ2 or INJ3 signal is not input 60 times or more

(1 trip detection logic)

MONITOR DESCRIPTION

The ECM monitors the EDU at all times. If drivers or fuel injectors are malfunctioning, the EDU sends fuel injector operation condition signals (fail signals INJ1 to INJ3) to the ECM. When the ECM receives the signals, the ECM stops the fuel injection control of the appropriate cylinders, cuts voltage to the appropriate injector relay, and illuminates the MIL.

Definition of the Injector Driver Signal -
Injector Driver Signal (INJ1)

#1 (No. 1 Fuel injector)

#4 (No. 4 Fuel injector)
Injector Driver Signal (INJ2)

#2 (No. 2 Fuel injector)

#5 (No. 5 Fuel injector)
Injector Driver Signal (INJ3)

#3 (No. 3 Fuel injector)

#6 (No. 6 Fuel injector)

MONITOR STRATEGY

Required Sensors/Components Injector for direct injection, injector driver (EDU)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) Click here.

  4. Turn the engine switch off and wait for at least 30 seconds.

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Start the engine.

  7. Idle the engine for 15 seconds or more [A].

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

  9. Read Pending DTCs [B].

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  11. Input the DTC: P0201, P0202, P0203, P0204, P0205, P0206 or P062D.

  12. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform steps [A] and [B] again.

WIRING DIAGRAM

A01FIWOE01
A01FEUQE01

INSPECTION PROCEDURE

Tech Tips


  • If the current from the INJ relay is cut because DTC P062D is stored, DTC P1235 will be stored even if the fuel pump for high pressure is normal.

  • Read freeze frame data using the GTS. 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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC P0201, P0202, P0203, P0204, P0205 or P0206 is output A
      One of the following pairs of DTCs is output: P0201 and P0204, P0202 and P0205, or P0203 and P0206 B
      DTC P062D is output B

    B

    CHECK HARNESS OR CONNECTOR (ECM - INJECTOR DRIVER) Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the injector driver (EDU) connectors.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      K1-2 (IJ1+) - K1-5- (IJ1-) 20°C (68°F) 2.01 to 2.31 Ω
      L1-3 (IJ2+) - L1-6 (IJ2-) 20°C (68°F) 2.01 to 2.31 Ω
      K1-3 (IJ3+) - K1-6 (IJ3-) 20°C (68°F) 2.01 to 2.31 Ω
      L1-1 (IJ4+) - L1-4 (IJ4-) 20°C (68°F) 2.01 to 2.31 Ω
      K1-1 (IJ5+) - K1-4 (IJ5-) 20°C (68°F) 2.01 to 2.31 Ω
      L1-2 (IJ6+) - L1-5 (IJ6-) 20°C (68°F) 2.01 to 2.31 Ω

      Tech Tips

      The standard values shown are fuel injector assembly resistance values.

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      K1-2 (IJ1+) - Body ground 20°C (68°F) 10 kΩ or higher
      L1-3 (IJ2+) - Body ground 20°C (68°F) 10 kΩ or higher
      K1-3 (IJ3+) - Body ground 20°C (68°F) 10 kΩ or higher
      L1-1 (IJ4+) - Body ground 20°C (68°F) 10 kΩ or higher
      K1-1 (IJ5+) - Body ground 20°C (68°F) 10 kΩ or higher
      L1-2 (IJ6+) - Body ground 20°C (68°F) 10 kΩ or higher

    3. Reconnect the injector driver (EDU) connectors.


    NG

    INSPECT FUEL INJECTOR ASSEMBLY (RESISTANCE) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ECM - INJECTOR DRIVER)


    1. Disconnect the ECM connectors.

    2. Disconnect the injector driver (EDU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F4-20 (#1) - F36-3 (IJT1) Always Below 1 Ω
      F4-10 (#2) - F36-2 (IJT2) Always Below 1 Ω
      F4-9 (#3) - F36-1 (IJT3) Always Below 1 Ω
      F4-19 (#4) - F36-12 (IJT4) Always Below 1 Ω
      F4-8 (#5) - F36-11 (IJT5) Always Below 1 Ω
      F4-18 (#6) - F36-10 (IJT6) Always Below 1 Ω
      F4-20 (#1) or F36-3 (IJT1) - Body ground Always 10 kΩ or higher
      F4-10 (#2) or F36-2 (IJT2) - Body ground Always 10 kΩ or higher
      F4-9 (#3) or F36-1 (IJT3) - Body ground Always 10 kΩ or higher
      F4-19 (#4) or F36-12 (IJT4) - Body ground Always 10 kΩ or higher
      F4-8 (#5) or F36-11 (IJT5) - Body ground Always 10 kΩ or higher
      F4-18 (#6) or F36-10 (IJT6) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connectors.

    5. Reconnect the injector driver (EDU) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK ECM (#1, #2, #3, #4 #5 AND #6 VOLTAGE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

      Tech Tips

      If DTC P062D is stored, the current from the INJ relay is cut.

    5. Disconnect the F36 injector driver (EDU) connector.

    6. A01FGPEE06
      Text in Illustration
      *a

      Component with harness connected

      (ECM)

      Inspect the ECM using an oscilloscope.


      1. While cranking the engine, check waveform the terminals of the ECM connector.

        Standard
        Signal waveform appears as shown in the illustration.
        ECM Terminal Name

        F4-20 (#1) - F4-1 (E1)

        F4-10 (#2) - F4-1 (E1)

        F4-9 (#3) - F4-1 (E1)

        F4-19 (#4) - F4-1 (E1)

        F4-8 (#5) - F4-1 (E1)

        F4-18 (#6) - F4-1 (E1)
        Tester Range 2 V/DIV., 20 ms./DIV.
        Condition Cranking

    NG

    REPLACE ECM Click here

    OK

    REPLACE INJECTOR DRIVER Click here

  5. CHECK HARNESS OR CONNECTOR (ECM - INJECTOR DRIVER)


    1. Disconnect the ECM connector.

    2. Disconnect the injector driver (EDU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F2-13 (INJ1) - F36-6 (INJ1) Always Below 1 Ω
      F2-12 (INJ2) - F36-5 (INJ2) Always Below 1 Ω
      F2-15 (INJ3) - F36-4 (INJ3) Always Below 1 Ω
      F2-13 (INJ1) or F36-6 (INJ1) - Body ground Always 10 kΩ or higher
      F2-12 (INJ2) or F36-5 (INJ2) - Body ground Always 10 kΩ or higher
      F2-15 (INJ3) or F36-4 (INJ3) - Body ground Always 10 kΩ or higher

    4. Reconnect the injector driver (EDU) connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK TERMINAL VOLTAGE (ECM OUTPUT VOLTAGE)


    1. A01FGOUE06
      Text in Illustration
      *a

      Component with harness connected

      (ECM)

      Disconnect the F36 injector driver (EDU) connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F2-13 (INJ1) - F4-1 (E1) Engine switch on (IG) 4.5 to 5.5 V
      F2-12 (INJ2) - F4-1 (E1) Engine switch on (IG) 4.5 to 5.5 V
      F2-15 (INJ3) - F4-1 (E1) Engine switch on (IG) 4.5 to 5.5 V

    4. Reconnect the injector driver (EDU) connector.


    NG

    REPLACE ECM Click here

    OK

    REPLACE INJECTOR DRIVER Click here

  7. INSPECT FUEL INJECTOR ASSEMBLY (RESISTANCE)


    1. Check the resistance of the fuel injector assembly Click here.


    NG

    REPLACE FUEL INJECTOR ASSEMBLY Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (INJECTOR DRIVER - FUEL INJECTOR ASSEMBLY)