Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Problem Symptoms Table

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Meter / Gauge / Display / Headup Display System(for Hv Model) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

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

Wire harness or connector

-

Read the Data List (Display Change Switch)

Meter mirror sub-assembly

Combination meter assembly

Brightness of the headup display does not change

Check customize parameters (HUD Brightness/Position)

Perform Active Test (Display Brightness)

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

Meter mirror sub-assembly

Combination meter assembly

Headup display is not displayed in the correct position

Headup display position initialization

Check customize parameters (HUD Brightness/Position)

Perform Active Test (Display Position)

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

Meter mirror sub-assembly

Combination meter assembly

Other headup display malfunction (Other systems are normal)

Meter mirror sub-assembly

    Precaution

    System Description

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    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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