Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000001DLWN
Model Year Start: 2019 Model: Sienna Prod Date Range: [08/2018 -           ]
Title: 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: P223711,...,P225412; A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground; 2019 - 2020 MY Sienna [08/2018 -        ]

DTC

P223711

A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground

DTC

P223712

A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery

DTC

P223713

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

DTC

P223716

A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold

DTC

P223717

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

DTC

P22371B

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

DTC

P224011

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground

DTC

P224012

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery

DTC

P224013

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open

DTC

P224016

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold

DTC

P224017

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold

DTC

P22401B

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Resistance Above Threshold

DTC

P225111

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

DTC

P225112

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

DTC

P225411

O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground

DTC

P225412

O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery

DESCRIPTION

Refer to DTC P219519.

Click here 2019 - 2020 MY Sienna [08/2018 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: P219519,P219524,P219618,P219623,P219719,P219724,P219818,P219823; A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold

HINT:

Although the DTC titles say O2 sensor, these DTCs relate to the air fuel ratio sensor.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P223711

A/F (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).

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

Comes on

DTC stored

  • SAE Code: P2238
  • DTC for Mexico Models: Applies

P223712

A/F (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).

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

Comes on

DTC stored

  • SAE Code: P2239
  • DTC for Mexico Models: Applies

P223713

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

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

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

Comes on

DTC stored

  • SAE Code: P2237
  • DTC for Mexico Models: Applies

P223716

A/F (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 (bank 1 sensor 1) circuit
  • Air fuel ratio sensor (bank 1 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2238
  • DTC for Mexico Models: Applies

P223717

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

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

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

Comes on

DTC stored

  • SAE Code: P2239
  • DTC for Mexico Models: Applies

P22371B

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

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

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

Comes on

DTC stored

  • SAE Code: P2238
  • DTC for Mexico Models: Does not apply

P224011

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground

The A2A+ voltage is 0.5 V or less for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2241
  • DTC for Mexico Models: Applies

P224012

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery

The A2A+ voltage is higher than 4.5 V for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2242
  • DTC for Mexico Models: Applies

P224013

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open

An open or ground short in the circuit between terminals A2A+ and A2A- of the air fuel ratio sensor while the engine is running (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2240
  • DTC for Mexico Models: Applies

P224016

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold

Difference between terminals A2A+ and A2A- is 0.1 V or less for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2241
  • DTC for Mexico Models: Applies

P224017

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold

Difference between terminals A2A+ and A2A- is higher than 0.8 V for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2242
  • DTC for Mexico Models: Applies

P22401B

A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Resistance Above Threshold

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

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2241
  • DTC for Mexico Models: Does not apply

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).

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

Comes on

DTC stored

  • SAE Code: P2252
  • DTC for Mexico Models: Applies

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).

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

Comes on

DTC stored

  • SAE Code: P2253
  • DTC for Mexico Models: Applies

P225411

O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground

The A2A- voltage is 0.5 V or less for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2255
  • DTC for Mexico Models: Applies

P225412

O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery

The A2A- voltage is higher than 4.5 V for 5 seconds or more (2 trip detection logic).

  • Open or short in air fuel ratio sensor (bank 2 sensor 1) circuit
  • Air fuel ratio sensor (bank 2 sensor 1)
  • ECM

Comes on

DTC stored

  • SAE Code: P2256
  • DTC for Mexico Models: Applies

MONITOR DESCRIPTION

These DTCs are output when there is an open or short in the air fuel ratio sensor circuit, or if the air fuel ratio sensor output drops. To detect these problems, the voltage of the air fuel ratio sensor is monitored when turning the ignition switch 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 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. If the same malfunction is detected in the next driving cycle, the ECM will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P2237: Air fuel ratio sensor (bank 1) open circuit between A1A+ and A1A-

P2238: Air fuel ratio sensor (bank 1) low admittance

P2238: Air fuel ratio sensor (bank 1) short circuit between A1A+ and GND

P2238: Air fuel ratio sensor (bank 1) short circuit between A1A+ and A1A-

P2239: Air fuel ratio sensor (bank 1) short circuit between A1A+ and +B

P2239: Air fuel ratio sensor (bank 1) short circuit between A1A+ and A1A-

P2240: Air fuel ratio sensor (bank 2) open circuit between A2A+ and A2A-

P2241: Air fuel ratio sensor (bank 2) low admittance

P2241: Air fuel ratio sensor (bank 2) short circuit between A2A+ and GND

P2241: Air fuel ratio sensor (bank 2) short circuit between A2A+ and A2A-

P2242: Air fuel ratio sensor (bank 2) short circuit between A2A+ and +B

P2242: Air fuel ratio sensor (bank 2) short circuit between A2A+ and A2A-

P2252: Air fuel ratio sensor (bank 1) short circuit between A1A- and GND

P2253: Air fuel ratio sensor (bank 1) short circuit between A1A- and +B

P2255: Air fuel ratio sensor (bank 2) short circuit between A2A- and GND

P2256: Air fuel ratio sensor (bank 2) short circuit between A2A- and +B

Required Sensors/Components (Main)

Air fuel ratio sensor

Required Sensors/Components (Related)

Engine coolant temperature sensor

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

10 seconds: P2237 and P2240

10 seconds: P2238 and P2241 (air fuel ratio sensor low admittance)

5 seconds: Others

MIL Operation

2 driving cycles

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

P2237, P2238, P2240 and P2241

Monitor runs whenever the following DTCs are not stored

P0010, P0020 (VVT oil control solenoid bank 1, 2)

P0011, P0021 (VVT system bank 1, 2 - advance)

P0012, P0022 (VVT system bank 1, 2 - retard)

P0013, P0023 (Exhaust VVT oil control solenoid bank 1, 2)

P0014, P0024 (Exhaust VVT system bank 1, 2 - advance)

P0015, P0025 (Exhaust VVT system bank 1, 2 - retard)

P0016, P0018 (VVT system bank 1, 2 - misalignment)

P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment)

P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater)

P0037, P0038, P0057, P0058, P0141, P0161, P102D, P105D (Heated oxygen sensor heater)

P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side))

P0101, P0102, P0103 (Mass air flow meter)

P0111, P0112, P0113 (Intake air temperature sensor)

P0116, P0117, P0118 (Engine coolant temperature sensor)

P011B (Engine coolant temperature/intake air temperature sensor correlation)

P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor)

P0125 (Insufficient coolant temperature for closed loop fuel control)

P0128 (Thermostat)

P0136, P0137, P0138, P0139, P013A, P013C, P0156, P0157, P0158, P0159, P0607 (Heated oxygen sensor)

P0171, P0172, P0174, P0175 (Fuel system)

P0201, P0202, P0203, P0204, P0205, P0206, P062D, P21CF, P21D0, P21D1, P21D2, P21D3, P21D4 (Fuel injector)

P0300 - P0306 (Misfire)

P0327, P0328, P0332, P0333 (Knock sensor)

P0335, P0337, P0338 (Crankshaft position sensor)

P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)

P0351 - P0356 (Igniter)

P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)

P0441, P0443 (EVAP system)

P0500 (Vehicle speed sensor)

P0657, P2102, P2103, P2111, P2112, P2119 (Throttle actuator)

P107B, P107C, P107D (Fuel pressure sensor (for low pressure side))

P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1 (Air-fuel ratio imbalance)

P1235 (High pressure fuel pump circuit)

P2239, P2242, P2252, P2253, P2255 and P2256

Monitor runs whenever the following DTCs are not stored

None

P2237 and P2240: Open Circuit Between A1A+ and A1A- / A2A+ and A2A-

Estimated sensor temperature

450 to 550°C (842 to 1022°F)

Engine

Running

Battery voltage

11 V or higher

Ignition switch

ON

Time after ignition switch is off to ON

5 seconds or more

P2238 and P2241: Low Admittance

Estimated sensor temperature

700 to 800°C (1292 to 1472°F)

Engine coolant temperature

30°C (86°F) or higher (varies with engine speed)

Fuel cut

Not executed

Others

Battery voltage

10.5 V or higher

Ignition switch

ON

Time after ignition switch is off to ON

5 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

P2237 and P2240: Open Circuit Between A1A+ and A1A- / A2A+ and A2A-

Air fuel ratio sensor admittance

Less than 0.0018 1/Ω

P2238 and P2241: Low Admittance

Air fuel ratio sensor admittance

Less than 0.0054 1/Ω

P2238 and P2241: Short Circuit Between A1A+ and GND / A2A+ and GND

A1A+ / A2A+ terminal voltage

0.5 V or less

P2238 and P2241: Short Circuit Between A1A+ and A1A- / A2A+ and A2A-

Difference between A1A+ and A1A- / A2A+ and A2A- terminal voltage

0.1 V or less

P2239 and P2242: Short Circuit Between A1A+ and +B / A2A+ and +B

A1A+ / A2A+ terminal voltage

Higher than 4.5 V

P2239 and P2242: Short Circuit Between A1A+ and A1A- / A2A+ and A2A-

Difference between A1A+ and A1A- / A2A+ and A2A- terminal voltage

Higher than 0.8 V

P2252 and P2255: Short Circuit Between A1A- and GND / A2A- and GND

A1A- / A2A- terminal voltage

0.5 V or less

P2253 and P2256: Short Circuit Between A1A- and +B / A2A- and +B

A1A- / A2A- terminal voltage

Higher than 4.5 V

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the Techstream on.
  6. Start the engine and wait 5 minutes or more [A].
  7. Enter the following menus: Powertrain / Engine / Trouble Codes [B].
  8. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  10. Input the DTC: P223711, P223712, P223713, P223716, P223717, P22371B, P224011, P224012, P224013, P224016, P224017, P22401B, P225111, P225112, P225411 or P225412.
  11. Check the DTC judgment result.

    Techstream 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

    HINT:

    • 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, idle the engine for 5 minutes and check the DTC judgment result again.
    • [A] to [B]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P219519.

Click here 2019 - 2020 MY Sienna [08/2018 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: P219519,P219524,P219618,P219623,P219719,P219724,P219818,P219823; A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold

CAUTION / NOTICE / HINT

NOTICE:

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

HINT:

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transaxle.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.
  • Sensor 1 refers to the sensor closest to the engine assembly.
  • Sensor 2 refers to the sensor farthest away from the engine assembly.
  • Refer to "Data List / Active Test" [A/F (O2) Sensor Voltage B1S1].

    Click here 2019 - 2020 MY Sienna [08/2018 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: DATA LIST / ACTIVE TEST

  • Read freeze frame data using the Techstream. 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 - ECM)

(a) Disconnect the B13 and B14 air fuel ratio sensor connectors.

(b) Disconnect the B67 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

B14-1 (HA1A) - B67-52 (HA1A)

Always

Below 1 Ω

B14-3 (A1A+) - B67-125 (A1A+)

Always

Below 1 Ω

B14-4 (A1A-) - B67-126 (A1A-)

Always

Below 1 Ω

B13-1 (HA2A) - B67-17 (HA2A)

Always

Below 1 Ω

B13-3 (A2A+) - B67-123 (A2A+)

Always

Below 1 Ω

B13-4 (A2A-) - B67-124 (A2A-)

Always

Below 1 Ω

B14-1 (HA1A) or B67-52 (HA1A) - Body ground and other terminals

Always

10 kΩ or higher

B14-3 (A1A+) or B67-125 (A1A+) - Body ground and other terminals

Always

10 kΩ or higher

B14-4 (A1A-) or B67-126 (A1A-) - Body ground and other terminals

Always

10 kΩ or higher

B13-1 (HA2A) or B67-17 (HA2A) - Body ground and other terminals

Always

10 kΩ or higher

B13-3 (A2A+) or B67-123 (A2A+) - Body ground and other terminals

Always

10 kΩ or higher

B13-4 (A2A-) or B67-124 (A2A-) - Body ground and other terminals

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

REPLACE AIR FUEL RATIO SENSOR

(a) Replace the air fuel ratio sensor.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR: REMOVAL

HINT:

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

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

NEXT

3.

CHECK WHETHER DTC OUTPUT RECURS

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear the DTCs.

(e) Turn the ignition switch off and wait for at least 30 seconds.

(f) Turn the ignition switch to ON.

(g) Turn the Techstream on.

(h) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(i) Enter the following menus: Powertrain / Engine / Utility / All Readiness.

(j) Input the DTC: P223711, P223712, P223713, P223716, P223717, P22371B, P224011, P224012, P224013, P224016, P224017, P22401B, P225111, P225112, P225411 or P225412.

(k) Check the DTC judgment result.

Result

Proceed to

NORMAL

(DTCs are not output)

A

ABNORMAL

(DTC P223711, P223712, P223713, P223716, P223717, P22371B, P224011, P224012, P224013, P224016, P224017, P22401B, P225111, P225112, P225411 or P225412 is output)

B

A

END

B

REPLACE ECM