SFI SYSTEM, Diagnostic DTC:P223711,P223712,P223713,P223716,P223717,P22371B,P225111 and P225112

DTC Code DTC Name
P223711 O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground
P223712 O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery
P223713 A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Open
P223716 O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold
P223717 O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold
P22371B A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Resistance Above Threshold
P225111 O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground
P225112 O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery

DESCRIPTION

Refer to DTC P003012.

Click here

Tip:

Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor (sensor 1).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P223711

O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground

The A1A+ voltage is 0.5 V or less for 5 seconds or more (2 trip detection logic).

  • Short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2238

P223712

O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery

The A1A+ voltage is higher than 4.5 V for 5 seconds or more (2 trip detection logic).

  • Short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2239

P223713

A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Open

An open or short to ground in the circuit between terminals A1A+ and A1A- of the air fuel ratio sensor (sensor 1) while the engine is running (2 trip detection logic).

  • Open or short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2237

P223716

O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold

Difference between terminals A1A+ and A1A- is 0.1 V or less for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2238

P223717

O2 Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold

Difference between terminals A1A+ and A1A- is 0.8 V or higher for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2239

P22371B

A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Resistance Above Threshold

The air fuel ratio sensor (sensor 1) admittance is less than 0.0054 1/Ω (2 trip detection logic).

  • Open or short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2238

P225111

O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground

The A1A- voltage is 0.5 V or less for 5 seconds or more (2 trip detection logic).

  • Short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2252

P225112

O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery

The A1A- voltage is higher than 4.5 V for 5 seconds or more (2 trip detection logic).

  • Short in air fuel ratio sensor (sensor 1) circuit

  • Air fuel ratio sensor (sensor 1)

  • ECM

Comes on

DTC stored

SAE Code:

P2253

MONITOR DESCRIPTION

These DTCs are output when there is an open or short in the air fuel ratio sensor (sensor 1) circuit, or if the air fuel ratio sensor (sensor 1) output drops. To detect these problems, the voltage of the air fuel ratio sensor (sensor 1) is monitored when turning the ignition switch to ON, and the admittance (admittance is an electrical term that indicates the ease of flow of current) is checked while driving. If the voltage of the air fuel ratio sensor (sensor 1) is between 0.5 V and 4.5 V, it is considered normal. If the voltage is out of the specified range, or the admittance is less than the standard value, the ECM determines that there is a malfunction in the air fuel ratio sensor (sensor 1). If the same malfunction is detected in the next driving cycle, the ECM will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Required Sensors/Components

Air fuel ratio sensor (sensor 1)

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the GTS on.

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

  5. Turn the ignition switch off and wait for at least 30 seconds.

  6. Turn the ignition switch to ON.

  7. Turn the GTS on.

  8. Start the engine and wait 5 minutes.

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

  10. Read the pending DTCs.

    Tip:

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

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

  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  12. Input the DTC: P223711, P223712, P223713, P223716, P223717, P22371B, P225111 or P225112.

  13. 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
    Tip:

    • 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, idle the engine for 5 minutes and check the DTC judgment result again.

WIRING DIAGRAM

Refer to DTC P003012.

Click here

CAUTION / NOTICE / HINT

Note:

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

Tip:

  • Refer to "Data List / Active Test" [A/F (O2) Sensor Voltage B1S1].

    Click here

  • Sensor 1 refers to the sensor closest to the engine assembly.

  • Sensor 2 refers to the sensor farthest away from the engine assembly.

  • 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 HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR (SENSOR 1) - ECM)

    1. Disconnect the air fuel ratio sensor (sensor 1) 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

      B89-1 (HA1A) - B208-19 (HA1A)

      Always

      Below 1 Ω

      B89-3 (A1A+) - B208-131 (A1A+)

      Always

      Below 1 Ω

      B89-4 (A1A-) - B208-132 (A1A-)

      Always

      Below 1 Ω

      B89-1 (HA1A) or B208-19 (HA1A) - Body ground and other terminals

      Always

      10 kΩ or higher

      B89-3 (A1A+) or B208-131 (A1A+) - Body ground and other terminals

      Always

      10 kΩ or higher

      B89-4 (A1A-) or B208-132 (A1A-) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

    1. Replace the air fuel ratio sensor (sensor 1).

      Click here

      Tip:

      Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P223711, P223712, P223713, P223716, P223717, P22371B, P225111 OR P225112)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off and wait for at least 30 seconds.

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

    8. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

    9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

      Powertrain > Engine > Utility

      Tester Display

      All Readiness

    10. Input the DTC: P223711, P223712, P223713, P223716, P223717, P22371B, P225111 or P225112.

    11. Check the DTC judgment result.

      Result

      Result

      Proceed to

      NORMAL

      (DTCs are not output)

      A

      ABNORMAL

      (DTC P223711, P223712, P223713, P223716, P223717, P22371B, P225111 or P225112 is output)

      B
    A

    END

    B

    REPLACE ECM

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