DTC P026A-00: Charge Air Cooler Efficiency Below Threshold [10/2022 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P023A-12.

Refer to DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	DTC Output from	Priority	Note
P026A-00	Charge Air Cooler Efficiency Below Threshold	Boost temperature is 90°C (194°F) or higher when intake air flow rate is 15 gm/sec or more (2 trip detection logic).	Lack of engine coolant Engine coolant leak Electric water pump assembly Intake air temperature sensor (No. 1 turbo pressure sensor) Intercooler cooling radiator assembly ECM	Does not come on	Engine	B	SAE Code: P026A DTC for Mexico Models: Applies