SFI SYSTEM, Diagnostic DTC:P0261, P0262, P0264, P0265, P0267, P0268

DTC Code DTC Name
P0261 Cylinder 1 Injector Circuit Low
P0262 Cylinder 1 Injector Circuit High
P0264 Cylinder 2 Injector Circuit Low
P0265 Cylinder 2 Injector Circuit High
P0267 Cylinder 3 Injector Circuit Low
P0268 Cylinder 3 Injector Circuit High

DESCRIPTION

The injectors are installed in the intake port, and inject fuel into the cylinders based on the signals from the ECM.

DTC No. DTC Detection Condition Trouble Area

P0261

P0264

P0267

 Open or short to GND in injector circuit (3 trip detection logic)

  • Open or short to GND in injector circuit

  • Fuel injector assembly

  • ECM

P0262

P0265

P0268

 Short in power source circuit (3 trip detection logic)

  • Short in injector power source circuit

  • Fuel injector assembly

  • ECM

Tech Tips


  • These DTCs are detected when the engine idles for approximately 15 seconds.

  • If DTC P0261 or P0262 is displayed, check No. 1 fuel injector circuit.

  • If DTC P0264 or P0265 is displayed, check No. 2 fuel injector circuit.

  • If DTC P0267 or P0268 is displayed, check No. 3 fuel injector circuit.

WIRING DIAGRAM

A01VKKXE01

CAUTION / NOTICE / HINT

Note


  • Perform electronic throttle learning after replacing the ECM Click here.

  • Inspect the fuses for circuits related to this system before performing the following 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. CHECK HARNESS AND CONNECTOR (ECM - FUEL INJECTOR ASSEMBLY)


    1. Disconnect the ECM connector.

    2. Disconnect the fuel injector assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B87-45 (#10) - B5-1 Always Below 1 Ω
      B87-46 (#20) - B7-1 Always Below 1 Ω
      B87-67 (#30) - B9-1 Always Below 1 Ω
      B87-45 (#10) or B5-1 - Body ground Always 10 kΩ or higher
      B87-46 (#20) or B7-1 - Body ground Always 10 kΩ or higher
      B87-67 (#30) or B9-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FUEL INJECTOR ASSEMBLY (RESISTANCE)


    1. Inspect the fuel injector assembly Click here.


    OK

    REPLACE ECM Click here

    NG

    REPLACE FUEL INJECTOR ASSEMBLY Click here