Vehicle Exterior. Yaris. Ncp93, 131
Lighting (Ext). Yaris. Ncp93, 131
Lighting System (For Hatchback) -- Problem Symptoms Table |
- 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.
| Symptom | Suspected Area | See page |
| Low beam headlights and high beam headlights do not illuminate. | H-LP MAIN fuse | - |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Low beam headlight circuit*1 | YARIS_NCP93 RM000001A7L05JX.html | |
| High beam headlight circuit*1 | YARIS_NCP93 RM000000ZBM05UX.html | |
| Headlight relay circuit*2 | YARIS_NCP93 RM000000ZBM05TX.html | |
| Harness or connector | - | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html | |
| Both left and right low beam headlights do not illuminate. | H-LP LH LO fuse and H-LP RH LO fuse | - |
| No. 1 headlight bulb | - | |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Low beam headlight circuit*1 | YARIS_NCP93 RM000001A7L05JX.html | |
| High beam headlight circuit*1 | YARIS_NCP93 RM000000ZBM05UX.html | |
| Headlight relay circuit*2 | YARIS_NCP93 RM000000ZBM05TX.html | |
| Harness or connector | - | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html | |
| Low beam headlight on one side does not illuminate. | H-LP LH LO fuse or H-LP RH LO fuse | - |
| No. 1 headlight bulb | - | |
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate. | H-LP LH HI fuse and H-LP RH HI fuse | - |
| No. 1 headlight bulb | - | |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| High beam headlight circuit*1 | YARIS_NCP93 RM000000ZBM05UX.html | |
| Headlight relay circuit*2 | YARIS_NCP93 RM000000ZBM05TX.html | |
| Harness or connector | - | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html | |
| High beam headlight on one side does not illuminate. | H-LP LH HI fuse or H-LP RH HI fuse | - |
| No. 1 headlight bulb | - | |
| Harness or connector | - | |
| High beam headlights do not illuminate with "High Flash" function (passing function). | Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html | |
| Clearance lights do not illuminate (taillights are normal). | Clearance light bulb | - |
| Harness or connector | - | |
| Side marker lights do not illuminate (taillights are normal). | Side marker light bulb | - |
| Harness or connector | - |
- *1: w/ Daytime Running Light System
- *2: w/o Daytime Running Light System
| Symptom | Suspected Area | See page |
| Low beam headlights and high beam headlights do not illuminate. | H-LP MAIN fuse | - |
| H-LP/US-DRL relay | YARIS_NCP93 RM000001Y5C00VX.html | |
| DIM relay | YARIS_NCP93 RM000001Y5C00VX.html | |
| Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html | |
| Harness or connector | - | |
| Both left and right low beam headlights do not illuminate. | H-LP LH LO fuse and H-LP RH LO fuse | - |
| No. 1 headlight bulb | - | |
| H-LP/US-DRL relay | YARIS_NCP93 RM000001Y5C00VX.html | |
| DIM relay | YARIS_NCP93 RM000001Y5C00VX.html | |
| Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html | |
| 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 | - | |
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate. | H-LP LH HI fuse and H-LP RH HI fuse | - |
| No. 1 headlight bulb | - | |
| DIM relay | YARIS_NCP93 RM000001Y5C00VX.html | |
| Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html | |
| Harness or connector | - | |
| High beam headlight on one side does not illuminate. | H-LP LH HI fuse or H-LP RH HI fuse | - |
| No. 1 headlight bulb | - | |
| Harness or connector | - | |
| High beam headlights do not illuminate with "High Flash" function (passing function). | Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html |
| Harness or connector | - | |
| Clearance lights do not illuminate (taillights are normal). | Clearance light bulb | - |
| Harness or connector | - | |
| Side marker lights do not illuminate (taillights are normal). | Side marker light bulb | - |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
| Fog light on one side does not illuminate. | Fog light bulb | - |
| Harness or connector | - | |
| Both left and right fog lights do not illuminate (taillight is normal). | FOG FR fuse | - |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Front fog light circuit | YARIS_NCP93 RM000001A64031X.html | |
| Harness or connector | - | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html |
| Symptom | Suspected Area | See page |
| Fog light on one side does not illuminate. | Fog light bulb | - |
| Harness or connector | - | |
| Both left and right fog lights do not illuminate (taillight is normal). | FOG FR fuse | - |
| FR FOG relay | - | |
| Instrument panel junction block assembly | - | |
| Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
| Both left and right tail lights do not illuminate (clearance lights and license plate lights included). | TAIL NO. 2 fuse | - |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Taillight relay circuit | YARIS_NCP93 RM000001MEH06FX.html | |
| Harness or connector | - | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html | |
| Taillight on one side does not illuminate. | Taillight bulb | - |
| Rear combination light assembly | YARIS_NCP93 RM000001H2J00XX.html | |
| Harness or connector | - | |
| 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 tail lights do not illuminate (clearance lights and license plate lights included). | TAIL NO. 2 fuse | - |
| TAIL relay | - | |
| Instrument panel junction block assembly | - | |
| Headlight dimmer switch assembly | YARIS_NCP93 RM000000W3U00GX.html | |
| Harness or connector | - | |
| Taillight on one side does not illuminate. | Taillight bulb | - |
| Rear combination light assembly | YARIS_NCP93 RM000001H2J00XX.html | |
| Harness or connector | - | |
| 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 |
| All of stop lights do not illuminate. | STOP fuse | - |
| Stop light switch assembly | YARIS_NCP93 RM000001Y5401QX.html | |
| Harness or connector | - | |
| Stop light on one side does not illuminate. | Stop light bulb | - |
| Rear combination light assembly | YARIS_NCP93 RM000001H2J00XX.html | |
| Harness or connector | - | |
| Center stop light does not illuminate. | Center stop light assembly | YARIS_NCP93 RM000004OLY004X.html |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
| Back-up light on one side does not illuminate. | Back-up light bulb | - |
| Harness or connector | - | |
| Both left and right back-up lights does not illuminate. | Park/neutral position light switch assembly*1 | YARIS_NCP93 RM00000191B033X.html |
| Back-up light switch assembly*2 | YARIS_NCP93 RM000003AEZ009X.html | |
| Harness or connector | - |
- *1: for Automatic Transaxle
- *2: for Manual Transaxle
| Symptom | Suspected Area | See page |
| Hazard warning lights do not operate (turn signal lights are normal). | HAZ fuse | - |
| Hazard warning switch circuit | YARIS_NCP93 RM0000011M3062X.html | |
| Harness or connector | - | |
| Combination meter assembly | YARIS_NCP93 RM000002CE102FX.html | |
| Turn signal lights do not operate (hazard warning lights are normal). | Check the DTC (meter / gauge system) | YARIS_NCP93 RM000001Q7700YX.html |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Turn signal lights do not operate in one direction. | Check for DTCs (meter / gauge system) | YARIS_NCP93 RM000001Q7700YX.html |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| Front turn signal light on one side does not illuminate. | Check for DTCs (meter / gauge system) | YARIS_NCP93 RM000001Q7700YX.html |
| Front turn signal light bulb | - | |
| Harness or connector | - | |
| Side turn signal light on one side does not illuminate. | Check for DTCs (meter / gauge system) | YARIS_NCP93 RM000001Q7700YX.html |
| Side turn signal light bulb | - | |
| Harness or connector | - | |
| Rear turn signal light on one side does not illuminate. | Check for DTCs (meter / gauge system) | YARIS_NCP93 RM000001Q7700YX.html |
| Rear turn signal light bulb | - | |
| Harness or connector | - |
| Symptom | Suspected Area | See page |
| Daytime running light system does not operate. | Daytime running light relay circuit | YARIS_NCP93 RM000000ZBS01WX.html |
| Headlight dimmer switch circuit | YARIS_NCP93 RM0000011M3061X.html | |
| IG signal circuit | YARIS_NCP93 RM0000011SQ077X.html | |
| Parking brake switch circuit | YARIS_NCP93 RM0000011SS02BX.html | |
| ECM | YARIS_NCP93 RM000000PDH0HSX.html | |
| CAN communication system*1 | YARIS_NCP93 RM000001RSO05UX.html | |
| CAN communication system*2 | YARIS_NCP93 RM000001RSO066X.html | |
| Main Body ECU | YARIS_NCP93 RM000002CE102FX.html |
- *1: for Hatchback except Separate Type Yaw Rate Sensor
- *2: for Hatchback with Separate Type Yaw Rate Sensor
| Symptom | Suspected Area | See page |
| Battery Saver system does not operate. | Door courtesy switch circuit | YARIS_NCP93 RM000003304010X.html |
| IG signal circuit | YARIS_NCP93 RM0000011SQ077X.html | |
| Main body ECU | YARIS_NCP93 RM000002CE102FX.html |