DESCRIPTION
Refer to DTC P003612.
Click here
HINT:
Although the DTC title say O2 sensor, these DTCs relate to the air fuel ratio sensor (sensor 2).
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Note |
---|---|---|---|---|---|
P22AB11 | A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Short to Ground |
The A1B+ voltage is 1.43 V or less for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
P22AB12 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Short to Battery |
The A1B+ voltage is higher than 6.135 V for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
P22AB13 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Open |
100 seconds or more elapse after the air fuel ratio sensor (sensor 2) heater turns on and the air fuel ratio sensor (sensor 2) impedance is higher than 510 Ω (2 trip detection logic). |
| Comes on |
|
P22AB16 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Below Threshold |
When A1B- voltage is higher than 2.54 V, the difference between terminals A1B+ and A1B- is 0.2 V or less for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
P22AB17 |
A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Above Threshold |
Difference between terminals A1B+ and A1B- is higher than 1.71 V for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
P22B211 |
A/F (O2) Sensor Negative Current Control Bank 1 Sensor 2 Circuit Short to Ground |
The A1B- voltage is 1.07 V or less for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
P22B212 |
A/F (O2) Sensor Negative Current Control Bank 1 Sensor 2 Circuit Short to Battery |
The A1B- voltage is higher than 4.59 V for 5 seconds or more (2 trip detection logic). |
| Comes on |
|
MONITOR DESCRIPTION
These DTCs are stored when there is an open or short in the air fuel ratio sensor (sensor 2) circuit, or the air fuel ratio sensor (sensor 2) output value is abnormal. The voltage of the air fuel ratio sensor (sensor 2) is monitored while the ignition switch is ON, and the impedance (impedance is an electrical term that indicates the difficulty of flow of current) is checked while engine running. If the voltage of the air fuel ratio sensor (sensor 2) is outside the normal range, or the impedance is outside the normal range, the ECM illuminates the MIL and stores a DTC.
MONITOR STRATEGY
Related DTCs | P22AB: Air fuel ratio sensor (sensor 2) circuit open P22AC: Air fuel ratio sensor (sensor 2) range check (A1B+ low voltage) P22AC: Air fuel ratio sensor (sensor 2) correlation (A1B+ and A1B-) P22AD: Air fuel ratio sensor (sensor 2) range check (A1B+ high voltage) P22AD: Air fuel ratio sensor (sensor 2) correlation (A1B+ and A1B-) P22B3: Air fuel ratio sensor (sensor 2) range check (A1B- low voltage) P22B4: Air fuel ratio sensor (sensor 2) range check (A1B- high voltage) |
Required Sensors/Components (Main) | Air fuel ratio sensor (sensor 2) |
Required Sensors/Components (Related) |
- |
Frequency of Operation |
Continuous |
Duration |
5 seconds |
MIL Operation |
2 driving cycles |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
P22AB: Air Fuel Ratio Sensor (Sensor 2) Circuit Open
Auxiliary battery voltage | 10.5 V or higher |
Time after heater on | 100 seconds or more |
Ignition switch | ON |
Air fuel ratio sensor (sensor 2) heater circuit fail (P0037, P0038, P0057, P0058, P102D, P105D) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive current control circuit range check fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive/negative current control circuit correlation fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) negative current control circuit range check fail (P22B3, P22B4, P22C0, P22C1) (Pending / MIL) |
Not detected |
Auxiliary battery voltage | 10.5 V or higher |
Ignition switch ON | 5 seconds or more |
Air fuel ratio sensor (sensor 2) positive current control circuit open fail (P22AB, P22B8) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive/negative current control circuit correlation fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) negative current control circuit range check fail (P22B3, P22B4, P22C0, P22C1) (Pending / MIL) |
Not detected |
Auxiliary battery voltage | 10.5 V or higher |
Ignition switch ON | 5 seconds or more |
A1B- terminal voltage | Higher than 2.54 V |
Air fuel ratio sensor (sensor 2) positive current control circuit open fail (P22AB, P22B8) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive current control circuit range check fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) negative current control circuit range check fail (P22B3, P22B4, P22C0, P22C1) (Pending / MIL) |
Not detected |
Auxiliary battery voltage | 10.5 V or higher |
Ignition switch ON | 5 seconds or more |
Air fuel ratio sensor (sensor 2) positive current control circuit open fail (P22AB, P22B8) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive current control circuit range check fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) negative current control circuit range check fail (P22B3, P22B4, P22C0, P22C1) (Pending / MIL) |
Not detected |
Auxiliary battery voltage | 10.5 V or higher |
Ignition switch ON | 5 seconds or more |
Air fuel ratio sensor (sensor 2) positive current control circuit open fail (P22AB, P22B8) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive/negative current control circuit correlation fail (P22AC,P22AD,P22B9,P22BA) (Pending / MIL) |
Not detected |
Air fuel ratio sensor (sensor 2) positive current control circuit range check fail (P22AC, P22AD, P22B9, P22BA) (Pending / MIL) |
Not detected |
TYPICAL MALFUNCTION THRESHOLDS
P22AB: Air Fuel Ratio Sensor (Sensor 2) Circuit Open
Air fuel ratio sensor (sensor 2) impedance | Higher than 510 Ω |
A1B+ terminal voltage | 1.43 V or less |
Difference between A1B+ and A1B- terminal voltage |
0.2 V or less |
A1B+ terminal voltage | Higher than 6.135 V |
Difference between A1B+ and A1B- terminal voltage |
Higher than 1.71 V |
A1B- terminal voltage | 1.07 V or less |
A1B- terminal voltage | Higher than 4.59 V |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
GTS Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
WIRING DIAGRAM
Refer to DTC P003612.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
HINT:
Click here
PROCEDURE
1. | CHECK TERMINAL VOLTAGE (AIR FUEL RATIO SENSOR (SENSOR 2) VOLTAGE) |
*a | Front view of wire harness connector (to Air Fuel Ratio Sensor (Sensor 2)) |
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 (sensor 2) connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition |
Specified Condition |
---|---|---|
C58-3 (A1B+) - Body ground |
Ignition switch ON | 2.8 to 3.2 V |
C58-4 (A1B-) - Body ground |
Ignition switch ON | 2.3 to 2.7 V |
C58-3 (A1B+) - C58-4 (A1B-) |
Ignition switch ON | 0.1 to 0.9 V |
HINT:
Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).
Click here
OK | ![]() | REPLACE AIR FUEL RATIO SENSOR (SENSOR 2) |
|
2. |
CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR (SENSOR 2) - ECM) |
(a) Disconnect the air fuel ratio sensor (sensor 2) 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 |
---|---|---|
C58-1 (HA1B) - C76-8 (HA1B) |
Always | Below 1 Ω |
C58-3 (A1B+) - C76-118 (A1B+) |
Always | Below 1 Ω |
C58-4 (A1B-) - C76-117 (A1B-) |
Always | Below 1 Ω |
C58-1 (HA1B) or C76-8 (HA1B) - Body ground and other terminals |
Always | 10 kΩ or higher |
C58-3 (A1B+) or C76-118 (A1B+) - Body ground and other terminals |
Always | 10 kΩ or higher |
C58-4 (A1B-) or C76-117 (A1B-) - Body ground and other terminals |
Always | 10 kΩ or higher |
OK | ![]() | REPLACE ECM
|
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |