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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 55 (Engine Control System (A25A-FXS) - Diagnostic Codes (P2270-P2610)) >> SFI System >> DTC P22AB-11: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Short to Ground; DTC P22AB-12: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Short to Battery; DTC P22AB-13: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Open; DTC P22AB-16: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Below Threshold; DTC P22AB-17: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Above Threshold; DTC P22B2-11: A/F (O2) Sensor Negative Current Control Bank 1 Sensor 2 Circuit Short to Ground; DTC P22B2-12: A/F (O2) Sensor Negative Current Control Bank 1 Sensor 2 Circuit Short to Battery [10/2022 - 11/2023] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
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
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