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Home >> Toyota >> 2019 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (SFI System [1AR-FE] - Diagnostic Codes - (Except Hybrid) (2 Of 8)) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) [11/2016 - ] >> Wiring Diagram

DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) [11/2016 - ]: Wiring Diagram

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

Refer to DTC P0102 for the mass air flow meter sub-assembly circuit.

Refer to DTC P0102: Mass Air Flow Circuit Low; DTC P0103: Mass Air Flow Circuit High [11/2016 - ]

Refer to DTC P2195 for the air fuel ratio sensor circuit.

Refer to DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) [11/2016 - ]

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