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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Lighting System (Except HEV) (W/O AFS) - Diagnostics - Introduction (2 Of 2)) >> LIGHTING SYSTEM (for Gasoline Model without AFS) >> Problem Symptoms Table [09/2019 - 04/2020] >> Problem Symptoms Table [09/2019 - 04/2020]

Problem Symptoms Table [09/2019 - 04/2020]

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*

    Refer to REGISTRATION [09/2019 - 04/2020]

  • 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.
    1. *: w/ Smart Key System

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" Refer to LO-beam Headlight does not Illuminate [03/2019 - 09/2022]
Right low beam headlight does not illuminate Refer to "LO-beam Headlight does not Illuminate" Refer to LO-beam Headlight does not Illuminate [03/2019 - 09/2022]
Both left and right low beam headlights do not illuminate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
Left high beam headlight does not illuminate Headlight unit assembly LH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly LH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Right high beam headlight does not illuminate Headlight unit assembly RH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly RH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Both left and right high beam headlights do not illuminate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
High beam headlight circuit Refer to High Beam Headlight Circuit [01/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
High Flash (passing function) does not operate (high beam headlights are normal) Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
  1. *1: for TMC Made
  2. *2: for TMMMS Made
PARKING LIGHT (FOR LED TYPE PARKING LIGHT)

Symptom Suspected Area Link
Left parking light does not illuminate Headlight unit assembly LH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly LH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Right parking light does not illuminate Headlight unit assembly RH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly RH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Both left and right parking lights do not illuminate Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Harness or connector -
  1. *1: for TMC Made
  2. *2: for TMMMS Made
PARKING LIGHT (FOR BULB TYPE PARKING LIGHT)

Symptom Suspected Area Link
Left parking light does not illuminate Front turn signal light bulb Refer to REPLACEMENT [01/2019 - ]
Harness or connector -
Right parking light does not illuminate Front turn signal light bulb Refer to REPLACEMENT [01/2019 - ]
Harness or connector -
Both left and right parking lights do not illuminate Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Harness or connector -
FRONT SIDE MARKER LIGHT

Symptom Suspected Area Link
Left front side marker light does not illuminate Front side marker light bulb Refer to REPLACEMENT [06/2018 - ]
Harness or connector -
Right front side marker light does not illuminate Front side marker light bulb Refer to REPLACEMENT [06/2018 - ]
Harness or connector -
Both left and right front side marker lights do not illuminate Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Harness or connector -
ACCESSORY LIGHT (W/ ACCESSORY LIGHT)

Symptom Suspected Area Link
Left or right accessory light does not illuminate LED illumination light Refer to INSPECTION [01/2019 - ]
Harness or connector -
Both left and right accessory lights do not illuminate Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Harness or connector -
TAILLIGHT (FOR HATCHBACK)

Symptom Suspected Area Link
Left or right taillight (rear combination light assembly) does not illuminate Rear combination light lens and body Refer to INSPECTION [06/2018 - 09/2022]
Rear combination light cord Refer to REMOVAL [06/2018 - 09/2022]
Harness or connector -
Left or right taillight (rear light assembly) does not illuminate Rear light lens and body Refer to INSPECTION [06/2018 - ]
Rear light socket and wire Refer to DISASSEMBLY [06/2018 - ]
Harness or connector -
All of the taillights, license plate lights and rear side marker lights do not illuminate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
TAILLIGHT (FOR SEDAN)

Symptom Suspected Area Link
Left or right taillight (rear combination light assembly) does not illuminate Rear combination light LED Refer to INSPECTION [01/2019 - ]
Rear combination light cord Refer to REMOVAL [03/2019 - ]
Harness or connector -
Left or right taillight (rear light assembly) does not illuminate* Rear light lens and body Refer to INSPECTION [01/2019 - ]
Rear light socket and wire Refer to DISASSEMBLY [01/2019 - ]
Harness or connector -
All of the taillights, license plate lights and rear side marker lights do not illuminate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
  1. *: for LED Type Side Marker Light
REAR SIDE MARKER LIGHT (FOR HATCHBACK)

Symptom Suspected Area Link
Left or right rear side marker light does not illuminate Rear combination light lens and body Refer to INSPECTION [06/2018 - 09/2022]
REAR SIDE MARKER LIGHT (FOR SEDAN)

Symptom Suspected Area Link
Left or right rear side marker light does not illuminate Rear combination light lens and body*1 Refer to INSPECTION [01/2019 - ]
Rear side marker light bulb*2 Refer to REPLACEMENT [01/2019 - ]
Harness or connector*2 -
  1. *1: for LED Type Side Marker Light
  2. *2: for Bulb Type Side Marker Light
LICENSE PLATE LIGHT (FOR HATCHBACK)

Symptom Suspected Area Link
Left or right license plate light does not illuminate License plate light bulb Refer to REPLACEMENT [06/2018 - ]
Harness or connector -
License plate light assembly Refer to REMOVAL [06/2018 - ]
Both left and right license plate lights do not illuminate Taillight relay circuit Refer to Taillight Relay Circuit [01/2019 - 09/2022]
Harness or connector -
LICENSE PLATE LIGHT (FOR SEDAN)

Symptom Suspected Area Link
License plate light does not illuminate License plate light assembly Refer to INSPECTION [01/2019 - ]
Harness or connector -
STOP LIGHT (FOR HATCHBACK)

Symptom Suspected Area Link
Left or right stop light does not illuminate Rear combination light LED Refer to INSPECTION [06/2018 - 09/2022]
Rear combination light cord Refer to REMOVAL [06/2018 - 09/2022]
Harness or connector -
All of the stop lights do not illuminate STOP fuse -
Stop light switch assembly Refer to ON-VEHICLE INSPECTION [01/2019 - ]
Harness or connector -
STOP LIGHT (FOR SEDAN)

Symptom Suspected Area Link
Left or right stop light does not illuminate Stop light LED* Refer to INSPECTION [01/2019 - ]
Rear combination light cord Refer to REMOVAL [03/2019 - ]
Harness or connector -
All of the stop lights do not illuminate STOP fuse -
Stop light switch assembly Refer to ON-VEHICLE INSPECTION [01/2019 - ]
Harness or connector -
  1. *: for LED Type Side Marker Light
HIGH MOUNTED STOP LIGHT

Symptom Suspected Area Link
High mounted stop light does not illuminate Center stop light assembly*1 Refer to INSPECTION [06/2018 - ]
Center stop light set*2 Refer to INSPECTION [01/2019 - ]
Harness or connector -
  1. *1: for Hatchback
  2. *2: for Sedan
FRONT FOG LIGHT (W/ FRONT FOG LIGHT)

Symptom Suspected Area Link
Left or right front fog light does not illuminate Fog light assembly Refer to INSPECTION [06/2018 - 09/2022]
Harness or connector -
Both left and right front fog lights do not illuminate (taillights are normal) Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Front fog light circuit Refer to Front Fog Light Circuit [01/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
BACK-UP LIGHT (FOR HATCHBACK)

Symptom Suspected Area Link
Left or right back-up light does not illuminate Rear light LED Refer to INSPECTION [06/2018 - ]
Rear light socket and wire Refer to DISASSEMBLY [06/2018 - ]
Harness or connector -
Both left and right back-up lights do not illuminate BKUP LP fuse -
ECU-ACC fuse*1 -
Park/neutral position switch assembly*1 Refer to INSPECTION [06/2018 - 09/2024]
Back-up light switch assembly*2 Refer to INSPECTION [06/2018 - 11/2022]
Instrument panel junction block assembly Refer to REMOVAL [03/2019 - 09/2022]
Harness or connector -
  1. *1: for CVT
  2. *2: for Manual Transaxle
BACK-UP LIGHT (FOR SEDAN)

Symptom Suspected Area Link
Left or right back-up light does not illuminate Back-up light bulb Refer to REPLACEMENT [01/2019 - ]
Rear light socket and wire Refer to DISASSEMBLY [01/2019 - ]
Harness or connector -
Both left and right back-up lights do not illuminate BKUP LP fuse -
ECU-ACC fuse*1, *2 -
Park/neutral position switch assembly*1 Refer to INSPECTION [01/2019 - 11/2022]
Park/neutral position switch assembly*2 Refer to INSPECTION [06/2018 - 09/2024]
Back-up light switch assembly*3 Refer to INSPECTION [06/2018 - 11/2022]
Back-up light switch assembly*4 Refer to INSPECTION [01/2019 - 11/2022]
Instrument panel junction block assembly Refer to REMOVAL [03/2019 - 09/2022]
Harness or connector -
  1. *1: for CVT (K313)
  2. *2: for CVT (K120)
  3. *3: for Manual Transaxle (EG60)
  4. *4: for Manual Transaxle (EC65)
TURN SIGNAL LIGHT (FOR LED TYPE TURN SIGNAL LIGHT)

Symptom Suspected Area Link
Left or right front turn signal light does not operate Headlight unit assembly*4 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly*5 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Left or right rear turn signal light does not operate*1 Rear combination light LED Refer to INSPECTION [06/2018 - 09/2022]
Rear combination light cord Refer to REMOVAL [06/2018 - 09/2022]
Harness or connector -
Left or right rear turn signal light does not operate*2 Rear turn signal light bulb Refer to REPLACEMENT [01/2019 - ]
Rear combination light cord Refer to REMOVAL [03/2019 - ]
Harness or connector -
Left or right side turn signal light does not operate*3 Side turn signal light assembly Refer to INSPECTION [06/2018 - ]
Outer rear view mirror assembly Refer to REMOVAL [06/2018 - ]
Harness or connector -
Turn signal lights do not operate in one direction Turn signal switch circuit Refer to Turn Signal Switch Circuit [06/2018 - 09/2022]
Meter/gauge system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - 09/2022]
All turn signal lights do not operate Turn signal switch circuit Refer to Turn Signal Switch Circuit [06/2018 - 09/2022]
Combination meter assembly Refer to REMOVAL [03/2019 - 09/2022]
All turn signal lights do not flash at the correct speed Combination meter assembly Refer to REMOVAL [03/2019 - 09/2022]
  1. *1: for Hatchback
  2. *2: for Sedan
  3. *3: w/ Side Turn Signal Light
  4. *4: for TMC Made
  5. *5: for TMMMS Made
TURN SIGNAL LIGHT (FOR BULB TYPE TURN SIGNAL LIGHT)

Symptom Suspected Area Link
Left or right front turn signal light does not operate Front turn signal light bulb Refer to REPLACEMENT [01/2019 - ]
Harness or connector -
Left or right rear turn signal light does not operate*1 Rear combination light LED Refer to DISASSEMBLY [06/2018 - ]
Rear combination light cord Refer to REMOVAL [06/2018 - 09/2022]
Harness or connector -
Left or right rear turn signal light does not operate*2 Rear turn signal light bulb Refer to REPLACEMENT [01/2019 - ]
Rear combination light cord Refer to REMOVAL [03/2019 - ]
Harness or connector -
Left or right side turn signal light does not operate*3 Side turn signal light assembly Refer to INSPECTION [06/2018 - ]
Outer rear view mirror assembly Refer to REMOVAL [06/2018 - ]
Harness or connector -
Turn signal lights do not operate in one direction Turn signal switch circuit Refer to Turn Signal Switch Circuit [06/2018 - 09/2022]
Meter/gauge system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - 09/2022]
All turn signal lights do not operate Turn signal switch circuit Refer to Turn Signal Switch Circuit [06/2018 - 09/2022]
Combination meter assembly Refer to REMOVAL [03/2019 - 09/2022]
All turn signal lights do not flash at the correct speed Combination meter assembly Refer to REMOVAL [03/2019 - 09/2022]
  1. *1: for Hatchback
  2. *2: for Sedan
  3. *3: w/ Side Turn Signal Light
HAZARD WARNING SIGNAL LIGHT

Symptom Suspected Area Link
Hazard warning signal lights do not operate Hazard warning switch circuit Refer to Hazard Warning Switch Circuit [06/2018 - 09/2022]
Combination meter assembly Refer to REMOVAL [03/2019 - 09/2022]
AUTOMATIC LIGHT CONTROL SYSTEM (W/ AUTOMATIC LIGHT CONTROL)

Symptom Suspected Area Link
Automatic light control system does not operate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
LIGHT AUTO TURN-OFF SYSTEM

Symptom Suspected Area Link
Light auto turn-off system does not operate Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
IG signal circuit Refer to IG Signal Circuit [01/2019 - 09/2022]
Front door courtesy switch circuit Refer to Front Door Courtesy Switch Circuit [01/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
DAYTIME RUNNING LIGHT SYSTEM

Symptom Suspected Area Link
Left daytime running light does not illuminate Headlight unit assembly LH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly LH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Right daytime running light does not illuminate Headlight unit assembly RH*1 Refer to DISASSEMBLY [03/2019 - 09/2022]
Headlight assembly RH*2 Refer to REMOVAL [01/2019 - 09/2022]
Harness or connector -
Both left and right daytime running lights do not illuminate Check customize settings Refer to CUSTOMIZE PARAMETERS [03/2019 - 09/2022]
Daytime running light circuit Refer to Daytime Running Light Circuit [01/2019 - 09/2022]
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit [03/2019 - 06/2021]
IG signal circuit Refer to IG Signal Circuit [01/2019 - 09/2022]
Parking brake switch circuit*3 Refer to Parking Brake Switch Circuit [01/2019 - 09/2022]
CAN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
  1. *1: for TMC Made
  2. *2: for TMMMS Made
  3. *3: w/o Electric Parking Brake System
REMOTE OPERATION FUNCTION (W/ TELEMATICS SYSTEM)

Symptom Suspected Area Link
Lights do not operate using remote operation function (Lighting system is normal) Telematics system*1 Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 04/2020]
Telematics system*2 Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 04/2020]
  1. *1: for Hatchback
  2. *2: for Sedan
WIPER-LINKED LOW BEAM HEADLIGHT CONTROL SYSTEM

Symptom Suspected Area Link
Wiper-linked low beam headlight control system does not operate Check customize settings Refer to CUSTOMIZE PARAMETERS [03/2019 - 09/2022]
Main body ECU (Multiplex network body ECU) Refer to REMOVAL [03/2019 - 09/2022]
AUTOMATIC HIGH BEAM SYSTEM (W/ AUTOMATIC HIGH BEAM SYSTEM)

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) Front radar sensor system Refer to Automatic High Beam System does not Operate or Operation Indicator does not Illuminate [01/2019 - 09/2022]
Check Data List (Front Recognition Camera High Temperature 2)
Check automatic high beam indicator light
Check Data List (Auto H Beam STS0)
Perform Active Test (Automatic High Beam Indicator (Green))*1
Perform Active Test (Multi Display All (White))*2
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" Refer to Automatic High Beam Switch Indicator does not Come ON [01/2019 - 09/2022]
  1. *1: for Multi-information Display (4.2 Inch Display)
  2. *2: for Multi-information Display (7 Inch Display)
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