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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2GR-FKS) - Diagnostic Codes (6 Of 6) & Circuit Tests (1 Of 2) >> SFI System >> DTC P2237-11: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2237-12: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2237-13: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Open; DTC P2237-16: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold; DTC P2237-17: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold; DTC P2237-1B: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Resistance Above Threshold; DTC P2240-11: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2240-12: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery; DTC P2240-13: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open; DTC P2240-16: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold; DTC P2240-17: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold; DTC P2240-1B: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Resistance Above Threshold; DTC P2251-11: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2251-12: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2254-11: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2254-12: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery [12/2019 - 10/2022] >> Wiring Diagram

DTC P2237-11: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2237-12: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2237-13: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Open; DTC P2237-16: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold; DTC P2237-17: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold; DTC P2237-1B: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Resistance Above Threshold; DTC P2240-11: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2240-12: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery; DTC P2240-13: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open; DTC P2240-16: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold; DTC P2240-17: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold; DTC P2240-1B: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Resistance Above Threshold; DTC P2251-11: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2251-12: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2254-11: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2254-12: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery [12/2019 - 10/2022]: Wiring Diagram

Refer to DTC P0030-12.

Refer to WIRING DIAGRAM