Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Check Mode Procedure

HINT:

• DTCs can be detected more sensitively in check mode than in normal diagnosis mode.
• Perform check mode inspection when a malfunction in a squib circuit is suspected even after the normal system code is output through normal diagnosis mode inspection.

Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG), and wait for at least 60 seconds. (d) Turn the Techstream on. (e ...

Data List / Active Test

DATA LIST / ACTIVE TEST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-int ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Navigation System: Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the navigation system vehicle customization screen. HINT: The air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the ...

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Navigation System: Operation Check
OPERATION CHECK CHECK NAVIGATION SYSTEM NORMAL CONDITION (a) If the cause of a symptom is any of the following, the corresponding symptom is normal; it is not due to a malfunction. Symptom Answer A longer route than expected is chosen. Depending on the road conditions, the navigation ECU ...