Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001L1N8
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [09/2019 - 04/2020]
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): PROBLEM SYMPTOMS TABLE; 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]

PROBLEM SYMPTOMS TABLE

NOTICE:

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

    Click here 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

  • 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.
    • *: 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"

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): LO-beam Headlight does not Illuminate

Right low beam headlight does not illuminate

Refer to "LO-beam Headlight does not Illuminate"

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): LO-beam Headlight does not Illuminate

Both left and right low beam headlights do not illuminate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Left high beam headlight does not illuminate

Headlight unit assembly LH*1

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly LH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Right high beam headlight does not illuminate

Headlight unit assembly RH*1

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly RH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Both left and right high beam headlights do not illuminate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

High beam headlight circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): High Beam Headlight Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

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

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • *1: for TMC Made
  • *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

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly LH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Right parking light does not illuminate

Headlight unit assembly RH*1

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly RH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Both left and right parking lights do not illuminate

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Harness or connector

-

  • *1: for TMC Made
  • *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

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): FRONT TURN SIGNAL LIGHT BULB: REPLACEMENT

Harness or connector

-

Right parking light does not illuminate

Front turn signal light bulb

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): FRONT TURN SIGNAL LIGHT BULB: REPLACEMENT

Harness or connector

-

Both left and right parking lights do not illuminate

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Harness or connector

-

Front Side Marker Light

Symptom

Suspected Area

Link

Left front side marker light does not illuminate

Front side marker light bulb

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): FRONT SIDE MARKER LIGHT BULB: REPLACEMENT

Harness or connector

-

Right front side marker light does not illuminate

Front side marker light bulb

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): FRONT SIDE MARKER LIGHT BULB: REPLACEMENT

Harness or connector

-

Both left and right front side marker lights do not illuminate

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Harness or connector

-

Accessory Light (w/ Accessory Light)

Symptom

Suspected Area

Link

Left or right accessory light does not illuminate

LED illumination light

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): ILLUMINATION LIGHT ASSEMBLY: INSPECTION

Harness or connector

-

Both left and right accessory lights do not illuminate

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

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

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): INSPECTION

Rear combination light cord

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): REMOVAL

Harness or connector

-

Left or right taillight (rear light assembly) does not illuminate

Rear light lens and body

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY: INSPECTION

Rear light socket and wire

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY: DISASSEMBLY

Harness or connector

-

All of the taillights, license plate lights and rear side marker lights do not illuminate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Taillight (for Sedan)

Symptom

Suspected Area

Link

Left or right taillight (rear combination light assembly) does not illuminate

Rear combination light LED

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): INSPECTION

Rear combination light cord

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): REMOVAL

Harness or connector

-

Left or right taillight (rear light assembly) does not illuminate*

Rear light lens and body

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY (for Sedan): INSPECTION

Rear light socket and wire

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY (for Sedan): DISASSEMBLY

Harness or connector

-

All of the taillights, license plate lights and rear side marker lights do not illuminate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • *: 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

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): INSPECTION

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

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): INSPECTION

Rear side marker light bulb*2

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR SIDE MARKER LIGHT BULB: REPLACEMENT

Harness or connector*2

-

  • *1: for LED Type Side Marker Light
  • *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

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): LICENSE PLATE LIGHT BULB: REPLACEMENT

Harness or connector

-

License plate light assembly

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): LICENSE PLATE LIGHT ASSEMBLY (for Hatchback): REMOVAL

Both left and right license plate lights do not illuminate

Taillight relay circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Taillight Relay Circuit

Harness or connector

-

License Plate Light (for Sedan)

Symptom

Suspected Area

Link

License plate light does not illuminate

License plate light assembly

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): LICENSE PLATE LIGHT ASSEMBLY (for Sedan): INSPECTION

Harness or connector

-

Stop Light (for Hatchback)

Symptom

Suspected Area

Link

Left or right stop light does not illuminate

Rear combination light LED

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): INSPECTION

Rear combination light cord

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): REMOVAL

Harness or connector

-

All of the stop lights do not illuminate

STOP fuse

-

Stop light switch assembly

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): STOP LIGHT SWITCH: ON-VEHICLE INSPECTION

Harness or connector

-

Stop Light (for Sedan)

Symptom

Suspected Area

Link

Left or right stop light does not illuminate

Stop light LED*

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): INSPECTION

Rear combination light cord

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): REMOVAL

Harness or connector

-

All of the stop lights do not illuminate

STOP fuse

-

Stop light switch assembly

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): STOP LIGHT SWITCH: ON-VEHICLE INSPECTION

Harness or connector

-

  • *: 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

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): HIGH MOUNTED STOP LIGHT ASSEMBLY: INSPECTION

Center stop light set*2

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): HIGH MOUNTED STOP LIGHT ASSEMBLY (for Sedan): INSPECTION

Harness or connector

-

  • *1: for Hatchback
  • *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

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): FOG LIGHT ASSEMBLY: INSPECTION

Harness or connector

-

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

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Front fog light circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Front Fog Light Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Back-up Light (for Hatchback)

Symptom

Suspected Area

Link

Left or right back-up light does not illuminate

Rear light LED

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY: INSPECTION

Rear light socket and wire

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY: DISASSEMBLY

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

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; K120 / K121 (CVT): K120 PARK / NEUTRAL POSITION SWITCH: INSPECTION

Back-up light switch assembly*2

2019 - 2023 MY Corolla Corolla Hatchback [06/2018 - 11/2022]; EG60 (MANUAL TRANSMISSION / TRANSAXLE): BACK-UP LIGHT SWITCH: INSPECTION

Instrument panel junction block assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Harness or connector

-

  • *1: for CVT
  • *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

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): BACK-UP LIGHT BULB: REPLACEMENT

Rear light socket and wire

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR LIGHT ASSEMBLY (for Sedan): DISASSEMBLY

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

2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; K313 (CVT): PARK / NEUTRAL POSITION SWITCH: INSPECTION

Park/neutral position switch assembly*2

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; K120 / K121 (CVT): K120 PARK / NEUTRAL POSITION SWITCH: INSPECTION

Back-up light switch assembly*3

2019 - 2023 MY Corolla Corolla Hatchback [06/2018 - 11/2022]; EG60 (MANUAL TRANSMISSION / TRANSAXLE): BACK-UP LIGHT SWITCH: INSPECTION

Back-up light switch assembly*4

2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; EC65 (MANUAL TRANSMISSION / TRANSAXLE): BACK-UP LIGHT SWITCH: INSPECTION

Instrument panel junction block assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Harness or connector

-

  • *1: for CVT (K313)
  • *2: for CVT (K120)
  • *3: for Manual Transaxle (EG60)
  • *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

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly*5

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Left or right rear turn signal light does not operate*1

Rear combination light LED

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): INSPECTION

Rear combination light cord

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): REMOVAL

Harness or connector

-

Left or right rear turn signal light does not operate*2

Rear turn signal light bulb

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR TURN SIGNAL LIGHT BULB: REPLACEMENT

Rear combination light cord

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): REMOVAL

Harness or connector

-

Left or right side turn signal light does not operate*3

Side turn signal light assembly

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): SIDE TURN SIGNAL LIGHT ASSEMBLY: INSPECTION

Outer rear view mirror assembly

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL

Harness or connector

-

Turn signal lights do not operate in one direction

Turn signal switch circuit

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Turn Signal Switch Circuit

Meter/gauge system

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

All turn signal lights do not operate

Turn signal switch circuit

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Turn Signal Switch Circuit

Combination meter assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

All turn signal lights do not flash at the correct speed

Combination meter assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

  • *1: for Hatchback
  • *2: for Sedan
  • *3: w/ Side Turn Signal Light
  • *4: for TMC Made
  • *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

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): FRONT TURN SIGNAL LIGHT BULB: REPLACEMENT

Harness or connector

-

Left or right rear turn signal light does not operate*1

Rear combination light LED

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): DISASSEMBLY

Rear combination light cord

2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Hatchback): REMOVAL

Harness or connector

-

Left or right rear turn signal light does not operate*2

Rear turn signal light bulb

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): REAR TURN SIGNAL LIGHT BULB: REPLACEMENT

Rear combination light cord

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 -        ]; LIGHTING (EXT): REAR COMBINATION LIGHT ASSEMBLY (for Sedan): REMOVAL

Harness or connector

-

Left or right side turn signal light does not operate*3

Side turn signal light assembly

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): SIDE TURN SIGNAL LIGHT ASSEMBLY: INSPECTION

Outer rear view mirror assembly

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; MIRROR (EXT): OUTER REAR VIEW MIRROR: REMOVAL

Harness or connector

-

Turn signal lights do not operate in one direction

Turn signal switch circuit

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Turn Signal Switch Circuit

Meter/gauge system

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

All turn signal lights do not operate

Turn signal switch circuit

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Turn Signal Switch Circuit

Combination meter assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

All turn signal lights do not flash at the correct speed

Combination meter assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

  • *1: for Hatchback
  • *2: for Sedan
  • *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

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Hazard Warning Switch Circuit

Combination meter assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

Automatic Light Control System (w/ Automatic Light Control)

Symptom

Suspected Area

Link

Automatic light control system does not operate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Light Auto Turn-off System

Symptom

Suspected Area

Link

Light auto turn-off system does not operate

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

IG signal circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): IG Signal Circuit

Front door courtesy switch circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): Front Door Courtesy Switch Circuit

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Daytime Running Light System

Symptom

Suspected Area

Link

Left daytime running light does not illuminate

Headlight unit assembly LH*1

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly LH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Right daytime running light does not illuminate

Headlight unit assembly RH*1

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: DISASSEMBLY

Headlight assembly RH*2

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): HEADLIGHT ASSEMBLY: REMOVAL

Harness or connector

-

Both left and right daytime running lights do not illuminate

Check customize settings

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): CUSTOMIZE PARAMETERS

Daytime running light circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Daytime Running Light Circuit

Headlight dimmer switch circuit

2020 - 2021 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Headlight Dimmer Switch Circuit

IG signal circuit

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): IG Signal Circuit

Parking brake switch circuit*3

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Parking Brake Switch Circuit

CAN communication system

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • *1: for TMC Made
  • *2: for TMMMS Made
  • *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

2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2019 - 04/2020]; TELEMATICS: TELEMATICS SYSTEM (for Hatchback): HOW TO PROCEED WITH TROUBLESHOOTING

Telematics system*2

2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2019 - 04/2020]; TELEMATICS: TELEMATICS SYSTEM (for Hatchback): HOW TO PROCEED WITH TROUBLESHOOTING

  • *1: for Hatchback
  • *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

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): CUSTOMIZE PARAMETERS

Main body ECU (Multiplex network body ECU)

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

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

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Automatic High Beam System does not Operate or Operation Indicator does not Illuminate

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"

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): Automatic High Beam Switch Indicator does not Come ON

  • *1: for Multi-information Display (4.2 Inch Display)
  • *2: for Multi-information Display (7 Inch Display)