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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Low beam headlights and high beam headlights do not illuminate. | MAIN fuse | - |
| Headlight dimmer switch circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Low beam headlight on one side does not illuminate. | H-LP LH LO fuse or H-LP RH LO fuse | - |
| No. 1 headlight bulb*1 | - | |
| Discharge headlight bulb*2 | ||
| Headlight control ECU assembly*2 | - | |
| Headlight unit | - | |
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Both left and right low beam headlights do not illuminate. | H-LP LH LO fuse and H-LP RH LO fuse | - |
| Headlight dimmer switch circuit | ||
| Low beam headlight circuit | ||
| Harness or connector | - | |
| High beam headlight on one side does not illuminate. | H-LP LH HI fuse or H-LP RH HI fuse | - |
| No. 2 headlight bulb*1 | - | |
| Discharge headlight bulb*2 | ||
| Headlight light control ECU assembly*2 | - | |
| Headlight unit | - | |
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Both left and right high beam headlight do not illuminate. | H-LP LH HI fuse and H-LP RH HI fuse | - |
| Headlight dimmer switch circuit | ||
| High beam headlight circuit | ||
| Harness or connector | - | |
| High beam headlights do not illuminate with "High Flash " function (passing function). | Headlight dimmer switch circuit | |
| Harness or connector | - | |
| Discharge headlight bulb flickers*2. | Discharge headlight bulb*2 | |
| Harness or connector | - | |
| Headlight light control ECU assembly*2 | - | |
| Discharge headlight bulb is dark*2. | Discharge headlight bulb*2 | |
| Headlight light control ECU assembly*2 | - | |
| Harness or connector | - | |
| Clearance lights do not illuminate (taillights are normal). | Clearance light bulb | - |
| Headlight cord*1 | - | |
| Headlight unit | - | |
| Harness or connector | - |
*1: w/o HID Headlight
*2: w/ HID Headlight
| Symptom | Suspected Area | See page |
|---|---|---|
| Both left and right tail lights do not illuminate (clearance lights and license plate lights included). | TAIL fuse | - |
| Headlight dimmer switch circuit | ||
| Taillight circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Tail light on one side does not illuminate. | Rear combination light socket and wire sub-assembly | |
| Rear combination light lens and body | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| License plate lights do not illuminate (taillight is normal). | License plate light bulb | - |
| License plate light assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Both left and right front fog lights do not illuminate (taillight is normal). | FR FOG RH fuse and FR FOG LH fuse | - |
| FR FOG relay | - | |
| Headlight dimmer switch circuit | ||
| Front fog light circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Front fog light on one side does not illuminate. | Fog light bulb | - |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Rear fog light does not illuminate. | RR FOG fuse | - |
| RR FOG relay | - | |
| Rear fog light bulb | - | |
| Rear light assembly | ||
| Headlight dimmer switch circuit | ||
| Rear fog light circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Rear light does not illuminate. | Back-up light switch assembly*1 | |
| Park/neutral position switch assembly*2 | ||
| Harness or connector | - | |
| Rear light on one side does not illuminate. | Buck-up light bulb | |
| Back-up light socket and wire sub-assembly | - | |
| Harness or connector | - |
*1: w/ Manual Transmission
*2: w/ Automatic Transmission
| Symptom | Suspected Area | See page |
|---|---|---|
| Stop light does not illuminate. | STOP fuse | - |
| Stop light switch assembly | ||
| Noise filter | ||
| Harness or connector | - | |
| Stop light on one side does not illuminate. | Rear combination light socket and wire sub-assembly | |
| Rear combination light lens and body | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Center stop light does not illuminate. | Center stop light assembly | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Turn signal lights does not illuminate. | GAUGE fuse | - |
| Turn signal flasher assembly | ||
| Headlight dimmer switch assembly | ||
| Harness or connector | - | |
| Front turn signal light on one side does not illuminate. | Front turn signal light bulb | - |
| Front turn signal light assembly | - | |
| Front turn signal light socket | ||
| Harness or connector | - | |
| Clearance lights do not illuminate (taillights are normal). | Front turn signal light bulb | - |
| Front turn signal light assembly | - | |
| Front turn signal light socket | ||
| Harness or connector | - | |
| Side turn signal light on one side does not illuminate*1. | Side turn signal light bulb | - |
| Side turn signal light assembly | - | |
| Side turn signal light socket and wire | - | |
| Harness or connector | - | |
| Front marker light on one side does not illuminate*2. | Front marker light bulb | - |
| Front marker light assembly | - | |
| Front marker light socket and wire | - | |
| Harness or connector | - | |
| Rear turn signal light on one side does not illuminate*3. | Rear turn signal light bulb | - |
| Rear combination light lens and body | - | |
| Rear combination light socket and wire sub-assembly | ||
| Harness or connector | - |
*1: w/ Side Turn Signal Light
*2: w/o Side Turn Signal Light
*3: w/ Side Marker Light
| Symptom | Suspected Area | See page |
|---|---|---|
| Hazard warning lights do not operate (turn signal lights are normal). | Turn signal flasher assembly | |
| Clock assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Automatic light control system does not operate. | Automatic light control sensor | |
| Headlight dimmer switch circuit | ||
| Main body ECU (network gateway ECU) | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Light auto turn off system does not operate. | Door courtesy switch circuit | |
| IG signal circuit | ||
| Main body ECU (network gateway ECU) | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Light auto turn off system does not operate. | Door courtesy switch circuit | |
| IG signal circuit | ||
| Main body ECU (network gateway ECU) | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Daytime running light system does not operate. | MPX-B fuse | - |
| DRL relay | - | |
| Headlight beam level control actuator circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Daytime running light system does not operate. | MPX-B fuse and DRL fuse | - |
| DRL relay | - | |
| Daytime running light bulb | - | |
| Low beam headlight relay circuit | ||
| Taillight relay circuit | ||
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Follow me home system does not operate. | Headlight dimmer switch circuit | |
| IG signal circuit | ||
| Main body ECU (network gateway ECU) | - |