Problem Symptoms Table [03/2018 - 08/2019]
NOTE:
- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Refer to REGISTRATION [10/2015 - 08/2019]
- If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.
Refer to INITIALIZATION [10/2015 - 08/2019]
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 | Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] |
| Headlight assembly LH (for Triple Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Headlight assembly LH (for Single Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right low beam headlight does not illuminate | Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] |
| Headlight assembly RH (for Triple Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Headlight assembly RH (for Single Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Both left and right low beam headlights do not illuminate | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] | |
| Left high beam headlight does not illuminate | Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] |
| Headlight assembly LH (for Triple Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Headlight assembly LH (for Single Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right high beam headlight does not illuminate | Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] |
| Headlight assembly RH (for Triple Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Headlight assembly RH (for Single Beam Headlight) | Refer to REMOVAL [08/2016 - 08/2019] | |
| Both left and right high beam headlights do not illuminate | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] | |
| High Flash (passing function) does not operate (high beam headlights are normal) | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] | |
| Left low beam headlight, high beam headlight, front side marker light, daytime running light and parking light do not illuminate | Power source circuit | Refer to Power Source Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right low beam headlight, high beam headlight, front side marker light, daytime running light and parking light do not illuminate | Power source circuit | Refer to Power Source Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] |
PARKING LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left parking light does not illuminate | Parking light/daytime running light circuit | Refer to Parking Light/Daytime Running Light Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right parking light does not illuminate | Parking light/daytime running light circuit | Refer to Parking Light/Daytime Running Light Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Both left and right parking lights do not illuminate | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
DAYTIME RUNNING LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left daytime running light does not illuminate | Parking light/daytime running light circuit | Refer to Parking Light/Daytime Running Light Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right daytime running light does not illuminate | Parking light/daytime running light circuit | Refer to Parking Light/Daytime Running Light Circuit [10/2015 - 08/2019] |
| Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Both left and right daytime running lights do not illuminate | Check customize settings | Refer to CUSTOMIZE PARAMETERS [12/2017 - 08/2019] |
| Electric parking brake system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] | |
| Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
TAILLIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right taillight and rear side marker light (rear combination light assembly) do not illuminate | Rear combination light assembly (w/ Rear No. 2 Seat) | Refer to INSPECTION [03/2018 - ] |
| Rear combination light assembly (w/o Rear No. 2 Seat) | Refer to INSPECTION [10/2015 - ] | |
| Harness or connector | - | |
| Left or right taillight (rear light assembly) does not illuminate | Rear light assembly | Refer to INSPECTION [10/2015 - ] |
| 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 [10/2015 - 08/2019] |
| Taillight relay circuit | Refer to Taillight Relay Circuit [10/2015 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
LICENSE PLATE LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right license plate light does not illuminate | License plate light assembly | Refer to INSPECTION [10/2015 - ] |
| Harness or connector | - |
STOP LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right stop light (rear combination light assembly) does not illuminate | Rear combination light assembly (w/ Rear No. 2 Seat) | Refer to INSPECTION [03/2018 - ] |
| Rear combination light assembly (w/o Rear No. 2 Seat) | Refer to INSPECTION [10/2015 - ] | |
| Harness or connector | - | |
| Left or right stop light (rear light assembly) does not illuminate | Rear light assembly | Refer to INSPECTION [10/2015 - ] |
| Harness or connector | - | |
| Center stop light does not illuminate | Center stop light assembly | Refer to INSPECTION [10/2015 - ] |
| Harness or connector | - | |
| All of the stop lights do not illuminate | STOP fuse | - |
| Stop light switch assembly | Refer to ON-VEHICLE INSPECTION [10/2015 - ] | |
| Semiconductor pwr integration ECU | Refer to REMOVAL [03/2018 - 08/2019] | |
| Harness or connector | - |
CORNERING LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Both left and right cornering lights does not illuminate | Check operating conditions | Refer to OPERATION CHECK [12/2017 - 08/2019] |
| Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] | |
| Left cornering light does not illuminate | Check operating conditions | Refer to OPERATION CHECK [12/2017 - 08/2019] |
| Cornering light circuit | Refer to Cornering Light Circuit [10/2015 - 08/2019] | |
| Headlight ECU sub-assembly LH | Refer to REMOVAL [08/2016 - 08/2019] | |
| Right cornering light does not illuminate | Check operating conditions | Refer to OPERATION CHECK [12/2017 - 08/2019] |
| Cornering light circuit | Refer to Cornering Light Circuit [10/2015 - 08/2019] | |
| Headlight ECU sub-assembly RH | Refer to REMOVAL [08/2016 - 08/2019] |
FRONT FOG LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front fog light does not illuminate | Fog light assembly | Refer to INSPECTION [10/2015 - 08/2019] |
| 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 [10/2015 - 08/2019] |
| Front fog light circuit | Refer to Front Fog Light Circuit [10/2015 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
BACK-UP LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right back-up light does not illuminate | back-up light bulb | Refer to REPLACEMENT [10/2015 - ] |
| Rear light assembly | Refer to INSPECTION [10/2015 - ] | |
| Harness or connector | - | |
| Both left and right back-up lights do not illuminate | Back-up light circuit | Refer to Back-up Light Circuit [10/2015 - 08/2019] |
TURN SIGNAL LIGHT
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front turn signal light does not operate (for Turn Signal Light Bulb Type) | Meter/gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Front turn signal light bulb | Refer to REPLACEMENT [03/2018 - 08/2019] | |
| Headlight assembly | Refer to REMOVAL [08/2016 - 08/2019] | |
| Harness or connector | - | |
| Left or right front turn signal light does not operate (for Turn Signal Light LED Type) | Meter/gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Headlight assembly | Refer to REMOVAL [08/2016 - 08/2019] | |
| Harness or connector | - | |
| Left or right rear turn signal light does not operate (for Turn Signal Light Bulb Type) | Meter/gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Rear turn signal light bulb | Refer to REPLACEMENT [03/2018 - 08/2019] | |
| Rear combination light assembly (w/ Rear No. 2 Seat) | Refer to INSPECTION [03/2018 - ] | |
| Rear combination light assembly (w/o Rear No. 2 Seat) | Refer to INSPECTION [10/2015 - ] | |
| Harness or connector | - | |
| Left or right rear turn signal light does not operate (for Turn Signal Light LED Type) | Meter/gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Rear combination light assembly (on-vehicle inspection) (w/ Rear No. 2 Seat) | Refer to ON-VEHICLE INSPECTION [03/2018 - 08/2019] | |
| Rear combination light assembly (on-vehicle inspection) (w/o Rear No. 2 Seat) | Refer to ON-VEHICLE INSPECTION [10/2015 - 08/2019] | |
| Rear light assembly (on-vehicle inspection) | Refer to ON-VEHICLE INSPECTION [10/2015 - 08/2019] | |
| Rear combination light assembly (w/ Rear No. 2 Seat) | Refer to INSPECTION [03/2018 - ] | |
| Rear combination light assembly (w/o Rear No. 2 Seat) | Refer to INSPECTION [10/2015 - ] | |
| Rear light assembly | Refer to INSPECTION [10/2015 - ] | |
| Harness or connector | - | |
| Left or right side turn signal light does not operate | Side turn signal light assembly | Refer to INSPECTION [10/2015 - ] |
| Outer rear view mirror assembly | Refer to REMOVAL [10/2015 - ] | |
| Outer mirror control ECU assembly | Refer to REMOVAL [10/2015 - ] | |
| Harness or connector | - | |
| Turn signal lights do not operate in one direction | Meter/gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Turn signal switch circuit | Refer to Turn Signal Switch Circuit [10/2015 - 08/2019] | |
| All turn signal lights do not operate | Turn signal switch circuit | Refer to Turn Signal Switch Circuit [10/2015 - 08/2019] |
| Combination meter assembly | Refer to REMOVAL [03/2018 - 08/2019] | |
| All turn signal lights do not flash at the correct speed | Combination meter assembly | Refer to REMOVAL [03/2018 - 08/2019] |
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 [10/2015 - 08/2019] |
| Combination meter assembly | Refer to REMOVAL [03/2018 - 08/2019] | |
| Hazard warning signal switch indicator does not illuminate | Radio receiver assembly (hazard warning signal switch) | Refer to INSPECTION [10/2015 - 08/2019] |
| Combination meter assembly | Refer to REMOVAL [03/2018 - 08/2019] | |
| Harness or connector | - |
AUTOMATIC LIGHT CONTROL SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic light control system does not operate | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
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 [10/2015 - 08/2019] |
| IG signal circuit | Refer to IG Signal Circuit [10/2015 - ] | |
| Door courtesy switch circuit | Refer to Door Courtesy Switch Circuit [10/2015 - ] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
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 [12/2017 - 08/2019] |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |
OUTSIDE HANDLE FOOT LIGHT CONTROL
| Symptom | Suspected Area | Link |
|---|---|---|
| All of the outside handle foot lights do not illuminate | Power door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Wireless door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] | |
| Smart access system with push-button start (for Entry Function) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] | |
| Door unlock detection switch circuit | Refer to Door Unlock Detection Switch Circuit [10/2015 - ] | |
| Outside handle foot light circuit | Refer to Outside Handle Foot Light Circuit [10/2015 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] | |
| Left or right front outside handle foot light does not illuminate | Front door outside handle assembly | Refer to INSPECTION [10/2015 - ] |
| Harness or connector | - | |
| Left or right rear outside handle foot light does not illuminate | Rear door outside handle assembly | Refer to INSPECTION [10/2015 - ] |
| Harness or connector | - |
WELCOME LIGHT ILLUMINATION CONTROL
| Symptom | Suspected Area | Link |
|---|---|---|
| Welcome light illumination control does not operate | Wireless door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] |
| Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit [10/2015 - 08/2019] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [03/2018 - 08/2019] |