Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Diagnosis System

DIAGNOSIS SYSTEM

DIAGNOSIS FUNCTION

(a) The road sign assist system displays a warning message on the multi-information display to inform the driver that the system is unavailable when it is malfunctioning.

Warning Message

Details

DTC/RoB

RSA Malfunction Visit Your Dealer

Road sign assist system is malfunctioning

Stored

    Terminals Of Ecu
    TERMINALS OF ECU CHECK FORWARD RECOGNITION CAMERA NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK FOR DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Road Sign Assis ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vehicle Stability Control System: Brake Switch "A" Circuit Open (P057113)
    DESCRIPTION The skid control ECU (brake actuator assembly) detects the brake operating conditions through a signal transmitted by the stop light switch. The skid control ECU incorporates a circuit to detect an open circuit. This DTC is output when an open circuit is detected in the stop light signal ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Headlight LH Circuit (B2439,B243A)
    DESCRIPTION The No. 1 headlight ECU sub-assembly LH and No. 1 headlight ECU sub-assembly RH internally boost the power supply voltage to ensure a constant supplied current for the lo/hi beam LED of their respective headlight. By monitoring the LED power supply voltage, abnormal current and malfuncti ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0124