| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001GXJN |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 04/2020] |
| Title: LIGHTING (INT): LIGHTING SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE; 2020 MY Corolla Corolla HV [01/2019 - 04/2020] | ||
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU) or certification ECU (smart key ECU assembly), refer to Registration.
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![2020 MY Corolla Corolla HV [01/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
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 |
|
|
Map light assembly |
|
|
|
Map light LH and map light RH do not illuminate (Other interior lights are normal) |
Interior light circuit |
|
Rear Room Light
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Rear room light does not illuminate (Other interior lights are normal) |
Bulb |
|
|
Interior light circuit |
|
Vanity Light
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Vanity light LH does not illuminate (Other interior lights are normal) |
Bulb |
|
|
Visor assembly LH |
|
|
|
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 |
|
|
Visor assembly RH |
|
|
|
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 |
|
|
No. 1 luggage compartment light assembly |
|
|
|
Luggage compartment door courtesy switch circuit |
|
|
|
Harness or connector |
- |
|
|
Main body ECU (Multiplex network body ECU) |
|
Ambient Illumination Light*
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Ambient illumination light does not illuminate |
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 |
|
- *: w/ Ambient Illumination Light
Cup Holder Light*
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Cup holder light does not illuminate |
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 |
|
Illuminated Entry System
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
All illuminated entry system control functions do not operate under any condition |
Interior light auto cut circuit |
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|
Actuation area-linked control function does not operate when registered key is brought into any exterior detection area |
CAN communication system |
|
|
Smart key system (for Entry Function) |
|
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|
Door lock/unlock-linked control function does not operate when doors are locked/unlocked |
Check customize settings (I/L ON W/Door Key Unlock) |
|
|
Door unlock detection switch circuit |
|
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|
Door open/close-linked control function does not operate when doors are opened/closed |
Front door courtesy switch circuit |
|
|
Rear door courtesy switch circuit |
|
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|
Power switch-linked control function does not operate when power switch is operated |
Check customize settings (I/L when ACC OFF) |
|
|
IG signal circuit |
|
|
|
ACC signal circuit |
|
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|
Power switch illumination does not illuminate |
CAN communication system |
|
|
Power switch illumination circuit |
|
|
|
Shift position-linked control does not operate when shift lever is operated |
Check customize settings (Light Control) |
|
|
CAN communication system |
|
|
|
Hybrid control system |
|
|
|
Main body ECU (Multiplex network body ECU) |
|
Battery Saving Control System
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Battery saving function does not operate |
Check illuminated entry system |
|
|
Main body ECU (Multiplex network body ECU) |
|
|
|