Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table

HINT:

• Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
• Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Utility

UTILITY NOTICE: When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used ...

Terminals Of Ecu

TERMINALS OF ECU CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstrea ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Check Mode Procedure
CHECK MODE PROCEDURE DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all of the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic. CHECK MOD ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning System: Compressor Lock Sensor Circuit (B1422/22)
DESCRIPTION The ECM sends the engine speed signal to the air conditioning amplifier assembly via CAN communication. The air conditioning amplifier assembly reads the difference between compressor speed and engine speed. When the difference becomes too large, the air conditioning amplifier assembly d ...