7GR-FKS ENGINE CONTROL SFI SYSTEM P223711 A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground P223712 A/F (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 A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold P223717 A/F (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 P224011 A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground P224012 A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery P224013 A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open P224016 A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold P224017 A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold P22401B A/F (O2) Sensor Positive Current Control Bank 2 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 P225411 O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground P225412 O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery
DESCRIPTION
Refer to DTC P219519.
- 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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 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 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
| Required Sensors/Components (Main) | Air fuel ratio sensor |
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine and wait 5 minutes or more.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
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.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P223711, P223712, P223713, P223716, P223717, P22371B, P224011, P224012, P224013, P224016, P224017, P22401B, P225111, P225112, P225411 or P225412.
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 |
- HINT:
- ·
If the judgment result is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system has a malfunction.
·If the judgment result is INCOMPLETE, idle the engine for 5 minutes and check the DTC judgment result again.
WIRING DIAGRAM
Refer to DTC P219519.
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 transmission.
·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].
·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
| *a | Front view of wire harness connector
(to Air Fuel Ratio Sensor) |
| *b | Bank 1 |
| *c | Bank 2 |
- HINT:
-
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
Disconnect the air fuel ratio sensor connector.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition E11-3 (A1A+) - Body ground Ignition switch ON 3.2 to 3.4 V E11-4 (A1A-) - Body ground Ignition switch ON 2.8 to 3.0 V E11-3 (A1A+) - E11-4 (A1A-) Ignition switch ON 0.2 to 0.6 V E12-3 (A2A+) - Body ground Ignition switch ON 3.2 to 3.4 V E12-4 (A2A-) - Body ground Ignition switch ON 2.8 to 3.0 V E12-3 (A2A+) - E12-4 (A2A-) Ignition switch ON 0.2 to 0.6 V
- HINT:
-
Perform "Inspection After Repair" after replacing the air fuel ratio sensor.
- Result:
Proceed to OK NG
OK
NG
Disconnect the air fuel ratio sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E11-1 (HA1A) - E4-2 (HA1A) Always Below 1 Ω E11-3 (A1A+) - E3-31 (A1A+) Always Below 1 Ω E11-4 (A1A-) - E3-32 (A1A-) Always Below 1 Ω E12-1 (HA2A) - E4-1 (HA2A) Always Below 1 Ω E12-3 (A2A+) - E3-23 (A2A+) Always Below 1 Ω E12-4 (A2A-) - E3-30 (A2A-) Always Below 1 Ω E11-1 (HA1A) or E4-2 (HA1A) - Body ground and other terminals Always 10 kΩ or higher E11-3 (A1A+) or E3-31 (A1A+) - Body ground and other terminals Always 10 kΩ or higher E11-4 (A1A-) or E3-32 (A1A-) - Body ground and other terminals Always 10 kΩ or higher E12-1 (HA2A) or E4-1 (HA2A) - Body ground and other terminals Always 10 kΩ or higher E12-3 (A2A+) or E3-23 (A2A+) - Body ground and other terminals Always 10 kΩ or higher E12-4 (A2A-) or E3-30 (A2A-) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG