Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001O76W
Model Year Start: 2021 Model: Corolla Prod Date Range: [04/2020 - 09/2022]
Title: LIGHTING (INT): LIGHTING SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

PROBLEM SYMPTOMS TABLE

NOTICE:

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

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

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)

Bulb

2019 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 11/2022]; LIGHTING (INT): MAP LIGHT BULB: REPLACEMENT

Map light assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): PERSONAL LIGHT: INSPECTION

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

Interior light circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Interior Light Circuit

Rear Room Light

Symptom

Suspected Area

Link

Rear room light does not illuminate (Other interior lights are normal)

Bulb

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

Interior light circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Interior Light Circuit

Vanity Light

Symptom

Suspected Area

Link

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

Bulb

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): VANITY LIGHT BULB: REPLACEMENT

Visor assembly LH

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

Harness or connector (Including bulb holder of the vanity light assembly that are part of the wire harness)

-

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

Bulb

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): VANITY LIGHT BULB: REPLACEMENT

Visor assembly RH

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

Harness or connector (Including bulb holder of the vanity light assembly that are part of the wire harness)

-

Luggage Compartment Light

Symptom

Suspected Area

Link

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

Bulb

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

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

Luggage compartment door courtesy switch circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Luggage Compartment Door Courtesy Switch Circuit

Harness or connector

-

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

Ambient Illumination Light*

Symptom

Suspected Area

Link

Ambient illumination light does not illuminate

Door illumination circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Door Illumination Circuit

  • *: w/ Ambient Illumination Light

Center Tray Illumination Light*

Symptom

Suspected Area

Link

Center tray illumination light does not illuminate

Ambient illumination light circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Ambient Illumination Light Circuit

  • *: w/ Ambient Illumination Light

Cup Holder Light*

Symptom

Suspected Area

Link

Cup holder light does not illuminate

Ambient illumination light circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Ambient Illumination Light Circuit

  • *: w/ Ambient Illumination Light

Interior Light Power Source Control

Symptom

Suspected Area

Link

All the interior lights that receive power via the DOME CUT relay do not illuminate

Interior light auto cut circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Interior Light Auto Cut 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

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

CAN communication system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Smart key system (for Entry Function)

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV 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

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

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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): CUSTOMIZE PARAMETERS

Door unlock detection switch circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Door Unlock Detection 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

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

Front door courtesy switch circuit

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

Rear door courtesy switch circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Rear 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

Power switch-linked control function does not operate when power switch is operated

Check customize settings (I/L when ACC OFF)

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): CUSTOMIZE PARAMETERS

IG signal circuit

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

ACC signal circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): ACC Signal 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

Power switch illumination does not illuminate

CAN communication system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Power switch illumination circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Power Switch Illumination Circuit

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

Check customize settings (Light Control)

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): CUSTOMIZE PARAMETERS

CAN communication system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

Hybrid control system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): HOW TO PROCEED WITH TROUBLESHOOTING *1

2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): HOW TO PROCEED WITH TROUBLESHOOTING *2

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 NICKEL METAL HYDRIDE BATTERY
  • *2: for LITHIUM-ION BATTERY

Battery Saving Control System

Symptom

Suspected Area

Link

Battery saving function does not operate

Check illuminated entry system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for HV Model): OPERATION CHECK

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