DTC P026A-00: Charge Air Cooler Efficiency Below Threshold [11/2021 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P023A-12.

See step 1

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P026A-00	Charge Air Cooler Efficiency Below Threshold	Boost temperature is 85°C (176°F) or higher when intake air flow rate is 30 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	SAE Code: P026A