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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 [11/2023 - ] >> Description

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 [11/2023 - ]: Description

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

Refer to DTC P0036-12.

Refer to DESCRIPTION

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 Memory Note
P22AB-11 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).
  • Short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22AC
  • DTC for Mexico Models: Applies
P22AB-12 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).
  • Open or short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22AD
  • DTC for Mexico Models: Applies
P22AB-13 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).
  • Open or short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22AB
  • DTC for Mexico Models: Applies
P22AB-16 A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Below Threshold When A1B- voltage is higher than 2.77 V, the difference between terminals A1B+ and A1B- is 0.2 V or less for 5 seconds or more (2 trip detection logic).
  • Open or short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22AC
  • DTC for Mexico Models: Applies
P22AB-17 A/F (O2) Sensor Positive Current Control Bank 1 Sensor 2 Circuit Voltage Above Threshold Difference between terminals A1B+ and A1B- is higher than 1.72 V for 5 seconds or more (2 trip detection logic).
  • Open or short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22AD
  • DTC for Mexico Models: Applies
P22B2-11 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).
  • Short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22B3
  • DTC for Mexico Models: Applies
P22B2-12 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).
  • Open or short in air fuel ratio sensor (sensor 2) circuit
  • Air fuel ratio sensor (sensor 2)
  • ECM
Comes on DTC stored
  • SAE Code: P22B4
  • DTC for Mexico Models: Applies