Toyota Yaris: Lighting System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

    Click here

  • 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.
  • If the windshield glass is dirty, fogged up or has an oily film, the forward recognition camera may not operate properly, affecting the operation of systems that use the forward recognition camera.*1
    • *1: w/ Toyota Safety Sense
  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera*1 will not match the information from the vehicle. As a result, a DTC may be stored.
    • *1: w/ Toyota Safety Sense
  • If the forward recognition camera*1 has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.

    for one time recognition: Click here

    for sequential recognition: Click here

    for driving adjustment: Click here

    • *1: w/ Toyota Safety Sense

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.

Headlight

Symptom

Suspected Area

Link

Left low beam headlight does not illuminate

Refer to "LO-beam Headlight does not Illuminate"

Right low beam headlight does not illuminate

Refer to "LO-beam Headlight does not Illuminate"

Both left and right low beam headlights do not illuminate

Headlight dimmer switch circuit

CAN communication system

Main body ECU (Multiplex network body ECU)

CXPI communication system

Semiconductor power integration ECU

Left high beam headlight does not illuminate

High Beam Headlight Circuit

Harness or connector

-

Right high beam headlight does not illuminate

High Beam Headlight Circuit

Harness or connector

-

Both left and right high beam headlights do not illuminate

Headlight dimmer switch circuit

CAN communication system

Main body ECU (Multiplex network body ECU)

CXPI communication system

Semiconductor power integration ECU

High Flash (passing function) does not operate (high beam headlights are normal)

Headlight dimmer switch circuit

CAN communication system

Main body ECU (Multiplex network body ECU)

CXPI communication system

Semiconductor power integration ECU

Clearance Light

Symptom

Suspected Area

Link

Clearance light does not illuminate

Clearance Light/Daytime Running Light Circuit

Harness or connector

-

Taillight

Symptom

Suspected Area

Link

Left or right taillight does not illuminate

Tail light LED

Harness or connector

-

All of the taillights, clearance lights and license plate lights do not illuminate

Headlight dimmer switch circuit

Taillight Relay Circuit

Harness or connector

-

License Plate Light

Symptom

Suspected Area

Link

Left or right license plate light does not illuminate

License plate light bulb

Harness or connector

-

Both left and right license plate lights do not illuminate

Taillight Relay Circuit

Harness or connector

-

Stop Light

Symptom

Suspected Area

Link

Left or right stop light does not illuminate

Stop light LED

Harness or connector

-

All of the stop lights do not illuminate

STOP fuse

-

Stop light switch assembly

Harness or connector

-

High Mounted Stop Light

Symptom

Suspected Area

Link

High mounted stop light does not illuminate

Center stop light assembly

Harness or connector

-

Front Fog Light

Symptom

Suspected Area

Link

Left or right front fog light does not illuminate

Fog light assembly

-

Harness or connector

-

Both left and right front fog lights do not illuminate (taillights are normal)

Headlight dimmer switch circuit

Front fog light circuit

Harness or connector

-

Rear Fog Light

Symptom

Suspected Area

Link

Rear fog light does not illuminate

Rear fog light LED

Headlight dimmer switch circuit

Rear fog light circuit

Harness or connector

-

Back-up Light

Symptom

Suspected Area

Link

Back-up light does not illuminate

Back-up light LED

Back-up light switch assembly

Harness or connector

-

Turn Signal Light

Symptom

Suspected Area

Link

Left or right front turn signal light does not operate

Headlight lens sub-assembly

Wire harness

Harness or connector

-

Left or right side turn signal light does not operate

Side turn signal light assembly

Outer rear view mirror assembly

Harness or connector

-

Left or right rear turn signal light does not operate

Rear turn signal light LED

Harness or connector

-

Turn signal lights do not operate in one direction

Turn signal switch circuit

Meter/gauge system

All turn signal lights do not operate

Turn signal switch circuit

Meter/gauge system

All turn signal lights do not flash at the correct speed

Combination meter assembly

Hazard Warning Signal Light

Symptom

Suspected Area

Link

Hazard warning signal lights do not operate

Hazard warning switch circuit

Combination meter assembly

Automatic Light Control System

Symptom

Suspected Area

Link

Automatic light control system does not operate

Headlight dimmer switch circuit

Main body ECU (Multiplex network body ECU)

Light Auto Turn-off System

Symptom

Suspected Area

Link

Light auto turn-off system does not operate

Headlight dimmer switch circuit

IG signal circuit

Front door courtesy switch circuit

Main body ECU (Multiplex network body ECU)

Daytime Running Light System

Symptom

Suspected Area

Link

Left or right daytime running light does not illuminate

Clearance Light/Daytime Running Light Circuit

Harness or connector

-

Both left and right daytime running lights do not illuminate

Headlight dimmer switch circuit

IG signal circuit

CAN communication system

Main body ECU (Multiplex network body ECU)

CXPI communication system

Semiconductor power integration ECU

Manual Headlight Beam Level Control System

Symptom

Suspected Area

Link

Headlight beam level control does not operate

Headlight leveling switch

Harness or connector

-

Headlight leveling motor

Automatic High Beam System (w/ Toyota Safety Sense)

Symptom

Suspected Area

Link

Automatic high beam system does not operate or automatic high beam indicator does not illuminate (low beam headlights and high beam headlights are normal)

Check Data List (Front Recognition Camera High Temperature 2)

Check automatic high beam indicator light

Check Data List (Auto High Beam Main Switch)

Check Data List (Auto H Beam STS0)

Perform Active Test (Automatic High Beam Indicator (Green))

Auto high beam switch

Harness or connector

Combination meter assembly

Forward recognition camera

Main body ECU (Multiplex network body ECU)

Auto high beam switch indicator does not come ON

Refer to "Automatic High Beam Switch Indicator does not Come ON"

Extended Headlight Lighting

Symptom

Suspected Area

Link

Follow me home system does not operate

Check customize parameters (Follow Me Home Lighting Time)

Main body ECU (Multiplex network body ECU)

    Customize Parameters

    CUSTOMIZE PARAMETERS CUSTOMIZE LIGHTING SYSTEM (EXT) NOTICE: When the customer requests a change in a function, first make sure that the function can be customized...

    Terminals Of Ecu

    TERMINALS OF ECU *1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU) CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...

    Other information:

    Toyota Yaris XP210 (2020-2022) Owner's Manual: Fuel Requirements


    Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL, which will reduce exhaust emissions and keep spark plug fouling to a minimum. To achieve maximum engine performance, use the specified fuel. * 1: U.S. federal law requires that octane ratings be posted on gas station pumps...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Components


    C..

    Categories

    Break-In Period

    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

    read more

     
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