Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000002BDY0
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [03/2023 -           ]
Title: LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2023 -        ]

PROBLEM SYMPTOMS TABLE

NOTICE:

Before replacing the main body ECU (multiplex network body ECU) or certification ECU (smart key ECU assembly), refer to Registration.*

for Gasoline Model: Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

for HV Model: Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

  • *: 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.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Map Light

Symptom

Suspected Area

Link

Map light LH or map light RH does not illuminate (Other interior lights are normal)

Map light assembly

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): PERSONAL LIGHT: INSPECTION

Harness or connector

-

Map light LH and map light RH do not illuminate (Other interior lights are normal)

Interior light circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Interior Light Circuit

Harness or connector

-

Rear Room Light

Symptom

Suspected Area

Link

No. 1 room light assembly does not illuminate (Other interior lights are normal)

Interior light circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Interior Light Circuit

Harness or connector

-

Vanity Light*

Symptom

Suspected Area

Link

Vanity light assembly LH does not illuminate (Other interior lights are normal)

Visor assembly LH

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (INT): VANITY LIGHT SWITCH: INSPECTION

Harness or connector

-

Vanity light assembly RH does not illuminate (Other interior lights are normal)

Visor assembly RH

2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (INT): VANITY LIGHT SWITCH: INSPECTION

Harness or connector

-

  • *: w/ Vanity Light

Luggage Compartment Light

Symptom

Suspected Area

Link

Luggage compartment light does not illuminate (Other interior lights are normal)

Bulb*3

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (INT): LUGGAGE COMPARTMENT ROOM LIGHT BULB: REPLACEMENT

No. 1 luggage compartment light assembly*1

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; LIGHTING (INT): LUGGAGE COMPARTMENT ROOM LIGHT (for Hatchback): INSPECTION

No. 1 luggage compartment light assembly*2

2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (INT): LUGGAGE COMPARTMENT ROOM LIGHT (for Sedan): INSPECTION

Back door courtesy switch circuit*1

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Back Door Courtesy Switch Circuit

Luggage compartment door courtesy switch circuit*2

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Luggage Compartment Door Courtesy Switch Circuit

Harness or connector

-

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • *1: for Hatchback
  • *2: for Sedan
  • *3: for Bulb Type

Interior Light Power Source Control

Symptom

Suspected Area

Link

All the interior lights that receive power via the DOME CUT relay do not illuminate (Other interior lights are normal)

Interior light auto cut circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Interior Light Auto Cut Circuit

Illuminated Entry System

Symptom

Suspected Area

Link

All illuminated entry system control functions do not operate under any condition

Interior light auto cut circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Interior Light Auto Cut Circuit

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Actuation area-linked control function does not operate when registered key is brought into any exterior detection area*1

CAN communication system*4

2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 08/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

CAN communication system*5

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Smart key system (for Entry Function)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Door lock/unlock-linked control function does not operate when doors are locked/unlocked

Check customize settings (I/L ON W/Door Key Unlock)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: CUSTOMIZE PARAMETERS

Door unlock detection switch circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Door Unlock Detection Switch Circuit

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Door open/close-linked control function does not operate when doors are opened/closed

Front door courtesy switch circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Front Door Courtesy Switch Circuit

Rear door courtesy switch circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Rear Door Courtesy Switch Circuit

Back door courtesy switch circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Back Door Courtesy Switch Circuit

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Push start switch-linked control function does not operate when engine switch is operated*1

Check customize settings (I/L when ACC OFF)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: CUSTOMIZE PARAMETERS

IG signal circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: IG Signal Circuit

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Push start switch illumination does not illuminate*1

CAN communication system*4

2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 08/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

CAN communication system*5

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Engine switch illumination circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: Push Start Switch Illumination Circuit

Ignition switch-linked control function does not operate when ignition switch is operated*2

Check customize settings (I/L when ACC OFF)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: CUSTOMIZE PARAMETERS

IG signal circuit

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: IG Signal Circuit

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Shift position-linked control does not operate when shift lever is operated*3

Check customize settings (Light Control)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: CUSTOMIZE PARAMETERS

CAN communication system*4

2023 MY Corolla Corolla Hatchback GR Corolla [11/2022 - 08/2023]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

CAN communication system*5

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Continuously variable transaxle system (K120)

2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Continuously variable transaxle system (K121)

2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

  • *1: w/ Smart Key System
  • *2: w/o Smart Key System
  • *3: for CVT
  • *4: for Gasoline Model
  • *4: for HV Model

Battery Saving Control System

Symptom

Suspected Area

Link

Battery saving function does not operate

Check illuminated entry system

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; LIGHTING (INT): LIGHTING SYSTEM: OPERATION CHECK

Main body ECU (Multiplex network body ECU)

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL