DTC P2A00-26: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold [12/2021 - ]: Description

WARNING: This page is about a different car, the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0030-12.

Refer to DTC P0030-12: HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P0030-13: HO2S Heater Control Bank 1 Sensor 1 Circuit Open; DTC P101A-9E: A/F Sensor Heater Performance Bank 1 Sensor 1 Stuck On [08/2020 - ]

This DTC P2A00-26 is applicable to Mexico models only.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P2A00-26	O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold	The calculated value for the air fuel ratio sensor (sensor 1) response rate deterioration level is less than the threshold (2 trip detection logic).	Air fuel ratio sensor (sensor 1) Intake system Port fuel injector assembly Direct fuel injector assembly Fuel pressure (for low pressure) Fuel pressure (for high pressure) Fuel system EGR valve assembly ECM	Comes on	DTC stored	SAE Code: P2A00 DTC for Mexico Models: Applies (Mexico models only)