SFI SYSTEM, Diagnostic DTC:P21CF13, P21D013, P21D113, P21D213, P21D313, P21D413

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
P21D313 Cylinder 5 Injector "B" Circuit Open
P21D413 Cylinder 6 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. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P21CF13 Cylinder 1 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21CF
P21D013 Cylinder 2 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21D0
P21D113 Cylinder 3 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21D1
P21D213 Cylinder 4 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21D2
P21D313 Cylinder 5 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21D3
P21D413 Cylinder 6 Injector "B" Circuit Open Current is not applied to the injector 10 times or more with the engine running (1 trip detection logic).

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

  • Fuel injector assembly (for port injection)

  • IG2 relay

  • ECM

 Comes on DTC stored SAE Code: P21D4

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 Port injector (cylinder 1 to 6)
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 [A].

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

  9. Read the 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 / Utility / All Readiness.

  11. Input the DTC: P21CF13, P21D013, P21D113, P21D213, P21D313 or P21D413.

  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

    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, perform steps [A] and [B] again.

WIRING DIAGRAM

B006AYEE01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following 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 DTCS OUTPUT (IN ADDITION TO DTC P21CF13, P21D013, P21D113, P21D213, P21D313 OR P21D413)


    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.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      P21CF13, P21D013, P21D113, P21D213, P21D313 or P21D413 is output A
      P21CF13, P21D013, P21D113, P22D213, P21D313 and P21D413 are output B

    B

    CHECK HARNESS AND CONNECTOR (IG2 RELAY - FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)) Click here

    A

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


    1. 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
      E17-1 - Body ground Engine switch on (IG) 11 to 14 V
      E26-1 - Body ground Engine switch on (IG) 11 to 14 V
      E18-1 - Body ground Engine switch on (IG) 11 to 14 V
      E27-1 - Body ground Engine switch on (IG) 11 to 14 V
      E19-1 - Body ground Engine switch on (IG) 11 to 14 V
      E28-1 - Body ground Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 5 Click here

    OK

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


    1. Disconnect the ECM 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
      E17-2 - D65-45 (#10) Always Below 1 Ω
      E26-2 - D65-43 (#20) Always Below 1 Ω
      E18-2 - D65-41 (#30) Always Below 1 Ω
      E27-2 - D65-44 (#40) Always Below 1 Ω
      E19-2 - D65-42 (#50) Always Below 1 Ω
      E28-2 - D65-40 (#60) Always Below 1 Ω
      E17-2 or D65-45 (#10) - Body ground and other terminals Always 10 kΩ or higher
      E26-2 or D65-43 (#20) - Body ground and other terminals Always 10 kΩ or higher
      E18-2 or D65-41 (#30) - Body ground and other terminals Always 10 kΩ or higher
      E27-2 or D65-44 (#40) - Body ground and other terminals Always 10 kΩ or higher
      E19-2 or D65-42 (#50) - Body ground and other terminals Always 10 kΩ or higher
      E28-2 or D65-40 (#60) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION) Click here

  5. CHECK HARNESS AND CONNECTOR (IG2 RELAY - FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION))


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

    2. Disconnect the IG2 relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5 (IG2 relay) - E17-1 Always Below 1 Ω
      5 (IG2 relay) - E26-1 Always Below 1 Ω
      5 (IG2 relay) - E18-1 Always Below 1 Ω
      5 (IG2 relay) - E27-1 Always Below 1 Ω
      5 (IG2 relay) - E19-1 Always Below 1 Ω
      5 (IG2 relay) - E28-1 Always Below 1 Ω
      5 (IG2 relay) or E17-1 - Body ground and other terminals Always 10 kΩ or higher
      5 (IG2 relay) or E26-1 - Body ground and other terminals Always 10 kΩ or higher
      5 (IG2 relay) or E18-1 - Body ground and other terminals Always 10 kΩ or higher
      5 (IG2 relay) or E27-1 - Body ground and other terminals Always 10 kΩ or higher
      5 (IG2 relay) or E19-1 - Body ground and other terminals Always 10 kΩ or higher
      5 (IG2 relay) or E28-1 - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT IG2 RELAY


    1. Inspect the IG2 relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE IG2 RELAY

    OK

  7. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IG2 RELAY)


    1. Remove the IG2 relay from the No. 1 engine room relay block and junction block assembly.

      B006GZWC01
      *A for LHD *B for RHD
      *1 No. 1 Engine Room Relay Block Assembly *2 IG2 Relay

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      3 (IG2 relay) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BATTERY)

    OK

  8. CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND)


    1. Remove the IG2 relay from the No. 1 engine room relay block and junction block assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (IG2 relay) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR