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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FKS) - Diagnostic Codes (6 Of 6) & Circuit Tests (1 Of 2) >> SFI System >> DTC P2195-19: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold; DTC P2195-24: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Signal Stuck High; DTC P2196-18: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Circuit Current Below Threshold; DTC P2196-23: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Signal Stuck Low; DTC P2197-19: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Circuit Current Above Threshold; DTC P2197-24: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Signal Stuck High; DTC P2198-18: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Circuit Current Below Threshold; DTC P2198-23: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Signal Stuck Low [12/2019 - 10/2022] >> Monitor Strategy

Monitor Strategy

Related DTCs P2195: Air fuel ratio sensor (bank 1) signal stuck lean
P2196: Air fuel ratio sensor (bank 1) signal stuck rich
P2197: Air fuel ratio sensor (bank 2) signal stuck lean
P2198: Air fuel ratio sensor (bank 2) signal stuck rich
Required Sensors/Components (Main) Air fuel ratio sensor
Required Sensors/Components (Related) Heated oxygen sensor
Frequency of Operation Continuous: Sensor voltage detection monitor
Once per driving cycle: Sensor current detection monitor
Duration 3 seconds: Sensor current detection monitor
5 seconds: Sensor voltage detection monitor
MIL Operation 2 driving cycles
Sequence of Operation None
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