SFI SYSTEM, Diagnostic DTC:P21CF13, P21D013, P21D113, P21D213

DTC Code DTC Name
P21CF13 Cylinder 1 Injector "B" Circuit Open
P21D013 Cylinder 2 Injector "B" Circuit Open
P21D113 Cylinder 3 Injector "B" Circuit Open
P21D213 Cylinder 4 Injector "B" Circuit Open

DESCRIPTION

The D-4S system has two injection systems. One is an in-cylinder direct injection system that directly injects pressurized fuel into the combustion chamber. The other is an intake port injection system. The ECM determines the percentage of direct injection and port injection necessary in accordance with the engine speed and load.

DTC No. DTC Detection Condition Trouble Area
P21CF13 Current is not applied to the injector 10 times or more (1 trip detection logic).

  • Open or short in fuel injector assembly (for port injection) circuit

  • Fuel injector assembly (for port injection)

  • No. 1 integration relay

  • ECM
P21D013 Current is not applied to the injector 10 times or more (1 trip detection logic).

  • Open or short in fuel injector assembly (for port injection) circuit

  • Fuel injector assembly (for port injection)

  • No. 1 integration relay

  • ECM
P21D113 Current is not applied to the injector 10 times or more (1 trip detection logic).

  • Open or short in fuel injector assembly (for port injection) circuit

  • Fuel injector assembly (for port injection)

  • No. 1 integration relay

  • ECM
P21D213 Current is not applied to the injector 10 times or more (1 trip detection logic).

  • Open or short in fuel injector assembly (for port injection) circuit

  • Fuel injector assembly (for port injection)

  • No. 1 integration relay

  • ECM

MONITOR DESCRIPTION

The ECM monitors the injection control of the fuel injector assemblies (for port injection). If a malfunction is detected in a fuel injector assembly (for port injection) circuit, the ECM cancels the injection control for the corresponding cylinder, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components Fuel injector assembly (for port injection) (cylinder 1 to 4)
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).

  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 3 minutes or more.

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

  9. Read the DTCs.

    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 / Utility / All Readiness.

  11. Input the DTC: P21CF13, P21D013, P21D113 or P21D213.

  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 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 the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

A01W2Z4E01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

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 (DTC P21CF13, P21D013, P21D113 OR P21D213)


    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 / Trouble Codes.

    5. Read the DTCs.

      Result
      Result Proceed to
      P21CF13, P21D013, P21D113 or P21D213 is output A
      P21CF13, P21D013, P21D113 and P21D213 are output B

    B

    CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)) Click here

    A

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION))


    1. A01W05WE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Fuel Injector Assembly (for Port Injection))

      Disconnect the fuel injector assembly (for port injection) 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 Condition Specified Condition
      E1-1 - Body ground Engine switch on (IG) 11 to 14 V
      E3-1 - Body ground Engine switch on (IG) 11 to 14 V
      E2-1 - Body ground Engine switch on (IG) 11 to 14 V
      E4-1 - Body ground Engine switch on (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) - ECM)


    1. Disconnect the fuel injector assembly (for port injection) 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
      E1-2 - D87-57 (#10) Always Below 1 Ω
      E3-2 - D87-54 (#20) Always Below 1 Ω
      E2-2 - D87-55 (#30) Always Below 1 Ω
      E4-2 - D87-56 (#40) Always Below 1 Ω
      E1-2 or D87-57 (#10) - Body ground and other terminals Always 10 kΩ or higher
      E3-2 or D87-54 (#20) - Body ground and other terminals Always 10 kΩ or higher
      E2-2 or D87-55 (#30) - Body ground and other terminals Always 10 kΩ or higher
      E4-2 or D87-56 (#40) - Body ground and other terminals Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION (RESISTANCE))


    1. Inspect the fuel injector assembly (for port injection) Click here.

      Tech Tips

      Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection) Click here.


    OK

    REPLACE ECM Click here

    NG

    REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) Click here

  5. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION))


    1. Disconnect the No. 1 integration relay connector.

    2. Disconnect the fuel injector assembly (for port injection) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1A-3 - E1-1 Always Below 1 Ω
      1A-3 - E3-1 Always Below 1 Ω
      1A-3 - E2-1 Always Below 1 Ω
      1A-3 - E4-1 Always Below 1 Ω
      1A-3 or E1-1 - Body ground and other terminals Always 10 kΩ or higher
      1A-3 or E3-1 - Body ground and other terminals Always 10 kΩ or higher
      1A-3 or E2-1 - Body ground and other terminals Always 10 kΩ or higher
      1A-3 or E4-1 - Body ground and other terminals Always 10 kΩ or higher

    OK

    REPLACE NO. 1 INTEGRATION RELAY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR