SFI SYSTEM, Diagnostic DTC:P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P062D, P062E

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)
P0207 Injector Circuit / Open - (Cylinder 7)
P0208 Injector Circuit / Open - (Cylinder 8)
P062D Fuel Injector Driver Circuit Performance Bank1
P062E Fuel Injector Driver Circuit Performance Bank2

DESCRIPTION

The D-4S system has two fuel injection methods. One is the in-cylinder direct injection method that directly injects pressurized fuel into the combustion chamber. The other is the intake port injection method. The ECM determines which fuel injection method to use in accordance with the engine conditions. For the in-cylinder direction injection method, the 2 injector drivers (EDU) in the engine room operate the fuel injectors (for direction injection) at high speeds.

Each EDU receives fuel injection request signals from the ECM and converts the signals to high voltage / high current injector operation signals to operate the fuel injectors (for direction injection). The fuel injection sequence occurs in the following order: No.1, No. 8, No. 7, No. 3, No. 6, No. 5, No. 4, No. 2. The ECM monitors each EDU at all times. If drivers or injectors are malfunctioning, the EDU sends fuel injector operation condition fail signals (INJ1 to INJ4) 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 EDU relay, and illuminates the MIL.

A01GNMZE13
INJ1 to INJ4 signal group
INJ No. Injector Driver Group Fuel Injector Group
INJ1 Injector Driver (No. 1)

  • No. 1 fuel injector for direct injection (IJ1)

  • No. 6 fuel injector for direct injection (IJ6)
INJ2

  • No. 4 fuel injector for direct injection (IJ4)

  • No. 7 fuel injector for direct injection (IJ7)
INJ3 Injector Driver (No. 2)

  • No. 5 fuel injector for direct injection (IJ5)

  • No. 8 fuel injector for direct injection (IJ8)
INJ4

  • No. 2 fuel injector for direct injection (IJ2)

  • No. 3 fuel injector for direct injection (IJ3)
DTC No. DTC Detection Condition Trouble Area
P0201

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


  • INJ1 signal (IJ1) is not input for 20 consecutive revolutions

  • INJ1 signal (IJ6) is not input for 20 consecutive revolutions, and INJ1 signal (IJ1) is not input for 15 consecutive revolutions

  • Open or short in injector driver (No. 1, 2) circuit

  • Injector driver (No. 1, 2)

  • Fuel injector for direct injection assembly

  • Engine room No. 2 junction block

  • ECM
P0202

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


  • INJ4 signal (IJ2) is not input for 20 consecutive revolutions

  • INJ4 signal (IJ3) is not input for 20 consecutive revolutions, and INJ4 signal (IJ2) is not input for 15 consecutive revolutions
P0203

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


  • INJ4 signal (IJ3) is not input for 20 consecutive revolutions

  • INJ4 signal (IJ2) is not input for 20 consecutive revolutions, and INJ4 signal (IJ3) is not input for 15 consecutive revolutions
P0204

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


  • INJ2 signal (IJ4) is not input for 20 consecutive revolutions

  • INJ2 signal (IJ7) is not input for 20 consecutive revolutions, and INJ2 signal (IJ4) is not input for 15 consecutive revolutions
P0205

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


  • INJ3 signal (IJ5) is not input for 20 consecutive revolutions

  • INJ3 signal (IJ8) is not input for 20 consecutive revolutions, and INJ3 signal (IJ5) is not input for 15 consecutive revolutions
P0206

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


  • INJ1 signal (IJ6) is not input for 20 consecutive revolutions

  • INJ1 signal (IJ1) is not input for 20 consecutive revolutions, and INJ1 signal (IJ6) is not input for 15 consecutive revolutions
P0207

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


  • INJ2 signal (IJ7) is not input for 20 consecutive revolutions

  • INJ2 signal (IJ4) is not input for 20 consecutive revolutions, and INJ2 signal (IJ7) is not input for 15 consecutive revolutions
P0208

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


  • INJ3 signal (IJ8) is not input for 20 consecutive revolutions

  • INJ3 signal (IJ5) is not input for 20 consecutive revolutions, and INJ3 signal (IJ8) is not input for 15 consecutive revolutions
P062D

P062D

INJ1 and INJ2 signals are not input for 10 consecutive revolutions (1 trip detection logic)
P062E

P062E

INJ3 and INJ4 signals are not input for 10 consecutive revolutions (1 trip detection logic)

WIRING DIAGRAM

A01GKWME17
A01GK4BE12
A01GHK1E15

INSPECTION PROCEDURE

Tech Tips

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

PROCEDURE


  1. INSPECT INJECTOR DRIVER (POWER SOURCE OF ECU)


    1. A01GNT0E02

      Disconnect the E16 or E28 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 (No. 1)
      Tester Connection Switch Condition Specified Condition
      E16-3 (+B) - Engine ground Engine switch on (IG) 11 to 14 V
      E16-2 (+B2) - Engine ground Engine switch on (IG) 11 to 14 V
      Standard voltage (No. 2)
      Tester Connection Switch Condition Specified Condition
      E28-3 (+B) - Engine ground Engine switch on (IG) 11 to 14 V
      E28-2 (+B2) - Engine ground Engine switch on (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR Click here

    OK

  2. CHECK FOR DTC


    1. A01GL5JE01

      Interchange the injector drivers No. 1 and No. 2.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG) and turn the tester ON.

    4. Clear DTCs Click here.

      Note

      Before deleting the DTCs, write them down.

    5. Start the engine.

    6. Enter the following menus: Powertrain / Engine / DTC.

    7. Read DTC.

      Result
      Display (DTC Output) Proceed to
      DTCs do not change A
      DTCs change (change in malfunctioning cylinder or EDU code) B

    B

    REPLACE INJECTOR DRIVER Click here

    A

  3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR FOR DIRECT INJECTION)


    1. Disconnect the H1 or H2 injector driver (No. 1) connector.

    2. A01GJ7YE02

      Disconnect the H3 or H4 injector driver (No. 2) connector.

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

      Standard resistance (No. 1)
      Tester Connection Condition Specified Condition
      H1-1 (IJ1+) - H1-3 (IJ1-) 20°C (68°F) 2.01 to 2.43 Ω
      H1-2 (IJ7+) - H1-4 (IJ7-) 20°C (68°F) 2.01 to 2.43 Ω
      H2-1 (IJ4+) - H2-3 (IJ4-) 20°C (68°F) 2.01 to 2.43 Ω
      H2-2 (IJ6+) - H2-4 (IJ6-) 20°C (68°F) 2.01 to 2.43 Ω
      Standard resistance (No. 2)
      Tester Connection Condition Specified Condition
      H3-1 (IJ5+) - H3-3 (IJ5-) 20°C (68°F) 2.01 to 2.43 Ω
      H3-2 (IJ3+) - H3-4 (IJ3-) 20°C (68°F) 2.01 to 2.43 Ω
      H4-1 (IJ2+) - H4-3 (IJ2-) 20°C (68°F) 2.01 to 2.43 Ω
      H4-2 (IJ8+) - H4-4 (IJ8-) 20°C (68°F) 2.01 to 2.43 Ω

    NG

    INSPECT FUEL INJECTOR FOR DIRECT INJECTION Click here

    OK

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

    A01GKREE02

    1. Disconnect the E2 and E3 ECM connectors.

    2. Disconnect the E15 or E27 injector driver (EDU) connector.

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

      Standard resistance (Check for open)
      Tester Connection Condition Specified Condition
      E15-6 (IJF1) - E2-13 (INJ1) Always Below 1 Ω
      E15-5 (IJF2) - E2-12 (INJ2) Always Below 1 Ω
      E27-6 (IJF3) - E2-15 (INJ3) Always Below 1 Ω
      E27-5 (IJF4) - E2-14 (INJ4) Always Below 1 Ω
      E15-4 (IJT1) - E3-20 (#1) Always Below 1 Ω
      E27-2 (IJT2) - E3-10 (#2) Always Below 1 Ω
      E27-3 (IJT3) - E3-9 (#3) Always Below 1 Ω
      E15-2 (IJT4) - E3-19 (#4) Always Below 1 Ω
      E27-4 (IJT5) - E3-8 (#5) Always Below 1 Ω
      E15-1 (IJT6) - E3-18 (#6) Always Below 1 Ω
      E15-3 (IJT7) - E3-17 (#7) Always Below 1 Ω
      E27-1 (IJT8) - E3-7 (#8) Always Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Condition Specified Condition
      E15-6 (IJF1) or E2-13 (INJ1) - Body ground Always 1 MΩ or higher
      E15-5 (IJF2) or E2-12 (INJ2) - Body ground Always 1 MΩ or higher
      E27-6 (IJF3) or E2-15 (INJ3) - Body ground Always 1 MΩ or higher
      E27-5 (IJF4) or E2-14 (INJ4) - Body ground Always 1 MΩ or higher
      E15-4 (IJT1) or E3-20 (#1) - Body ground Always 1 MΩ or higher
      E27-2 (IJT2) or E3-10 (#2) - Body ground Always 1 MΩ or higher
      E27-3 (IJT3) or E3-9 (#3) - Body ground Always 1 MΩ or higher
      E15-2 (IJT4) or E3-19 (#4) - Body ground Always 1 MΩ or higher
      E27-4 (IJT5) or E3-8 (#5) - Body ground Always 1 MΩ or higher
      E15-1 (IJT6) or E3-18 (#6) - Body ground Always 1 MΩ or higher
      E15-3 (IJT7) or E3-17 (#7) - Body ground Always 1 MΩ or higher
      E27-1 (IJT8) or E3-7 (#8) - Body ground Always 1 MΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT ENGINE ROOM NO. 2 RELAY BLOCK (EDU1, EDU2 RELAY)

    A01GNSWE03

    Tech Tips

    The EDU1 and EDU2 relays cannot be removed and inspected, as they are part of the engine room No. 2 junction block internal circuit.


    1. Remove the terminal cover.

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

      Standard voltage
      Tester Connection Condition Specified Condition
      4 - Body ground Always 11 to 14 V
      5 - Body ground
      6 - Body ground
      2 - Body ground Engine switch on (IG)
      3 - Body ground
      7 - Body ground
      8 - Body ground

    NG

    REPLACE ENGINE ROOM NO. 2 RELAY BLOCK

    OK

  6. CHECK HARNESS AND CONNECTOR

    A01GI9YE02

    1. Remove the EDU1 and EDU2 fuses from the engine room No. 2 junction block.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      EDU1 fuse Always Below 1 Ω
      EDU2 fuse

    3. Disconnect the E16 or E28 injector driver (EDU) connector.

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

      Standard resistance (Check for open)
      Tester Connection Condition Specified Condition
      EDU1 (2) - E16-3 (+B) Always Below 22 mΩ
      EDU1 (2) - E16-2 (+B2) Always Below 22 mΩ
      EDU2 (2) - E28-3 (+B) Always Below 22 mΩ
      EDU2 (2) - E28-2 (+B2) Always Below 22 mΩ
      Standard resistance (Check for short)
      Tester Connection Condition Specified Condition
      EDU1 (2) or E16-3 (+B) - Body ground Always 10 kΩ or higher
      EDU1 (2) or E16-2 (+B2) - Body ground Always 10 kΩ or higher
      EDU2 (2) or E28-3 (+B) - Body ground Always 10 kΩ or higher
      EDU2 (2) or E28-2 (+B2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ENGINE ROOM NO. 2 JUNCTION BLOCK

  7. INSPECT FUEL INJECTOR FOR DIRECT INJECTION


    1. Check the resistance of the fuel injector for direct injection Click here.


    NG

    REPLACE FUEL INJECTOR FOR DIRECT INJECTION Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR