Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Problem Symptoms Table

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 symptom 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.
Headup Display System

Symptom

Suspected Area

Link

Headup display is not displayed.

Fuse (ECU-DCC NO. 2, ECU-IG1 NO. 8)

-

Wire harness or connector

-

Headup display switch assembly circuit

Headup display (Meter mirror sub-assembly)

Brightness of the headup display does not change.

Perform Active Test (Display Brightness)

Read the Data List (Brightness Up Switch (Meter)), Brightness Down Switch (Meter))

Headup display (Meter mirror sub-assembly)

Combination meter assembly

Headup display is not displayed in the correct position.

Perform Active Test (Display Position)

Read the Data List (Projection Position Up Switch (Meter), Projection Position Down Switch (Meter))

Headup display (Meter mirror sub-assembly)

Combination meter assembly

Other headup display malfunction (Other systems are normal)

Headup display (Meter mirror sub-assembly)

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE HEADUP DISPLAY SYSTEM (a) Customizing with the Techstream (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Ent ...

    Terminals Of Ecu
    TERMINALS OF ECU HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Des ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Can Communication System: Check Bus 4 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the network gateway ECU and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the network gateway ECU and terminal 16 (BAT) of the DLC3. Symptom Troubl ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Airbag System: P Seat Airbag Active Mode Indicator (B1660)
    DESCRIPTION The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and passenger airbag ON/OFF indicator (radio receiver assembly). The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger airbag assembly and front seat c ...

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

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

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