- DTC judgment completed
- System normal
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001GJ7D |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 04/2020] |
| Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P223711,P223712,P223713,P223716,P223717,P22371B,P225111,P225112; A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground; 2020 MY Corolla Corolla HV [01/2019 - 04/2020] | ||
|
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 |
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 |
DESCRIPTION
Refer to DTC P219519.
Click here
![2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P219519,P219524,P219618,P219623; A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold+](/t3Portal/stylegraphics/info.gif)
HINT:
Although the DTC titles say oxygen 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 |
Voltage at terminal A1A+ of the ECM is 0.5 V or less for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P223712 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery |
Voltage at terminal A1A+ of the ECM is higher than 4.5 V for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
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). |
|
Comes on |
DTC stored |
|
|
P223716 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold |
Difference in voltage between at terminals A1A+ and A1A- is 0.1 V or less for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P223717 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold |
Difference in voltage between at terminals A1A+ and A1A- is higher than 0.8 V for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
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). |
|
Comes on |
DTC stored |
|
|
P225111 |
O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground |
Voltage at terminal A1A- of the ECM is 0.5 V or less for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P225112 |
O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery |
Voltage at terminal A1A- of the ECM is higher than 4.5 V for 5 seconds or more (2 trip detection logic). |
|
Comes on |
DTC stored |
|
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 the power switch is turned on (IG), 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 open circuit between A1A+ and A1A- P2238: Air fuel ratio sensor low admittance P2238: Air fuel ratio sensor short circuit between A1A+ and GND P2238: Air fuel ratio sensor short circuit between A1A+ and A1A- P2239: Air fuel ratio sensor short circuit between A1A+ and +B P2239: Air fuel ratio sensor short circuit between A1A+ and A1A- P2252: Air fuel ratio sensor short circuit between A1A- and GND P2253: Air fuel ratio sensor short circuit between A1A- 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, P2238 (air fuel ratio sensor low admittance) 5 seconds: Others |
|
MIL Operation |
2 driving cycles |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
P2237 and P2238
|
Monitor runs whenever the following DTCs are not stored |
P0010 (Camshaft timing oil control valve) P0011 (VVT system - advance) P0012 (VVT system - retard) P0016 (VVT system - misalignment) P0031, P0032, P101D (Air fuel ratio sensor heater) P0037, P0038, P0141, P102D (Heated oxygen sensor heater) P0101, P0102, P0103 (Mass air flow meter) P0106, P0107, P0108 (Manifold absolute pressure) 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, P0607 (Heated oxygen sensor) P0171, P0172 (Fuel system) P0300 - P0304 (Misfire) P0327, P0328 (Knock control sensor) P0335 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0351 - P0354 (Igniter) P0400 (EGR system) P0401 (EGR system (closed)) P0403 (EGR control circuit) P0441 (EVAP system) P0657, P0658, P2102, P2103, P2111, P2112, P2119 (Throttle actuator) P219A, P219C, P219D, P219E, P219F (Air-fuel ratio imbalance) P2228, P2229 (Atmospheric pressure sensor) |
P2237: Open Circuit Between A1A+ and A1A-
|
Estimated sensor temperature |
450 to 550°C (842 to 1022°F) |
|
Engine |
Running |
|
Auxiliary battery voltage |
11 V or higher |
|
Power switch |
On (IG) |
|
Time after power switch is off to on (IG) |
5 seconds or more |
|
Air fuel ratio imbalance of clogged EGR runner fail (P10AA) |
Not set |
P2238: Low Admittance
|
Estimated sensor temperature |
700 to 800°C (1292 to 1472°F) |
|
Engine coolant temperature |
5°C (41°F) or higher (varies with engine coolant temperature at engine start) |
|
Fuel cut |
Not executed |
|
Air fuel ratio imbalance of clogged EGR runner fail (P10AA) |
Not set |
Others
|
All of the following conditions are met |
- |
|
Auxiliary battery voltage |
10.5 V or higher |
|
Power switch |
On (IG) |
|
Time after power switch is off to on (IG) |
5 seconds or more |
|
Air fuel ratio imbalance of clogged EGR runner fail (P10AA) |
Not set |
TYPICAL MALFUNCTION THRESHOLDS
P2237: Open Circuit Between A1A+ and A1A-
|
Air fuel ratio sensor admittance |
Less than 0.0018 1/Ω |
P2238: Low Admittance
|
Air fuel ratio sensor admittance |
Less than 0.0054 1/Ω |
P2238: Short Circuit Between A1A+ and GND
|
A1A+ terminal voltage |
0.5 V or less |
P2238: Short Circuit Between A1A+ and A1A-
|
Difference between A1A+ terminal and A1A- terminal voltage |
0.1 V or less |
P2239: Short Circuit Between A1A+ and +B
|
A1A+ terminal voltage |
Higher than 4.5 V |
P2239: Short Circuit Between A1A+ and A1A-
|
Difference between A1A+ terminal and A1A- terminal voltage |
Higher than 0.8 V |
P2252: Short Circuit Between A1A- and GND
|
A1A- terminal voltage |
0.5 V or less |
P2253: Short Circuit Between A1A- and +B
|
A1A- 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
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG).
- Turn the Techstream on.
-
Put the engine in Inspection Mode (Maintenance Mode).
Click here
- Start the engine and wait 5 minutes or more [A].
- Enter the following menus: Powertrain / Engine / Trouble Codes [B].
-
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, P225111 or P225112.
-
Check the DTC judgment result.
Techstream Display
Description
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.
-
[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 auxiliary 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
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
HINT:
- 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
- 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 TERMINAL VOLTAGE (AIR FUEL RATIO SENSOR VOLTAGE) |
|
*a |
Front view of wire harness connector (to Air Fuel Ratio Sensor) |
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
(a) Disconnect the air fuel ratio sensor connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C55-3 (A1A+) - Body ground |
Power switch on (IG) |
3.2 to 3.4 V |
|
C55-4 (A1A-) - Body ground |
Power switch on (IG) |
2.8 to 3.0 V |
|
C55-3 (A1A+) - C55-4 (A1A-) |
Power switch on (IG) |
0.2 to 0.6 V |
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor.
Click here
| OK |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) |
(a) Disconnect the air fuel ratio sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C55-1 (HA1A) - C77-27 (HA1A) |
Always |
Below 1 Ω |
|
C55-3 (A1A+) - C77-100 (A1A+) |
Always |
Below 1 Ω |
|
C55-4 (A1A-) - C77-132 (A1A-) |
Always |
Below 1 Ω |
|
C55-1 (HA1A) or C77-27 (HA1A) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
C55-3 (A1A+) or C77-100 (A1A+) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
C55-4 (A1A-) or C77-132 (A1A-) - Body ground and other terminals |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|