LIGHTING (EXT) LIGHTING SYSTEM PROBLEM SYMPTOMS TABLE
- HINT:
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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 | Link |
|---|---|---|
| Left or right low beam headlight does not illuminate | H-LP LH-LO fuse or H-LP RH-LO fuse | - |
| Headlight assembly | 
|
|
| Harness or connector | - | |
| Both left and right low beam headlights do not illuminate | H-LP-MAIN fuse | - |
| Headlight dimmer switch circuit |
|
|
| Low beam headlight circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
|
| Left or right high beam headlight does not illuminate | H-LP LH-HI fuse or H-LP RH-HI fuse | - |
| Headlight assembly |
|
|
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate | Headlight dimmer switch circuit |
|
| High beam headlight circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
|
| "High Flash" (passing function) does not operate (high beam headlights are normal) | Headlight dimmer switch circuit |
|
| Main body ECU (Multiplex network body ECU) |
|
|
| Left or right clearance light does not illuminate | Headlight assembly |
|
| Harness or connector | - | |
| Both left and right clearance lights do not illuminate | Harness or connector | - |
| Instrument panel junction block assembly |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right low beam headlight does not illuminate | H-LP LH-LO fuse or H-LP RH-LO fuse | - |
| Bulb |
|
|
| Harness or connector | - | |
| Both left and right low beam headlights do not illuminate | H-LP-MAIN fuse | - |
| H-LP relay |
|
|
| Headlight dimmer switch assembly |
|
|
| Harness or connector | - | |
| Left or right high beam headlight does not illuminate | H-LP LH-HI fuse or H-LP RH-HI fuse | - |
| Bulb |
|
|
| Harness or connector | - | |
| Both left and right high beam headlights do not illuminate | H-LP-MAIN fuse | - |
| DIM relay |
|
|
| Headlight dimmer switch assembly |
|
|
| Harness or connector | - | |
| "High Flash" (passing function) does not operate (high beam headlights are normal) | Headlight dimmer switch assembly |
|
| Harness or connector | - | |
| Left or right clearance light does not illuminate | Bulb |
|
| Instrument panel junction block assembly |
|
|
| Harness or connector | - | |
| Both left and right clearance lights do not illuminate | Harness or connector | - |
| Instrument panel junction block assembly |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right taillight (rear combination light assembly) does not illuminate | Rear combination light assembly |
|
| Harness or connector | - | |
| Left or right taillight (rear light assembly) does not illuminate | Rear light assembly |
|
| Harness or connector | - | |
| All of the lights (taillights, clearance lights and license plate lights) do not illuminate | Headlight dimmer switch circuit |
|
| Taillight relay circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right taillight (rear combination light assembly) does not illuminate | Rear combination light assembly |
|
| Harness or connector | - | |
| Left or right taillight (rear light assembly) does not illuminate | Rear light assembly |
|
| Harness or connector | - | |
| All of the lights (taillights, clearance lights and license plate lights) do not illuminate | TAIL fuse | - |
| TAIL relay | - | |
| Headlight dimmer switch assembly |
|
|
| Instrument panel junction block assembly |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Both left and right license plate lights do not illuminate | Harness or connector | - |
| Instrument panel junction block assembly |
|
|
| Left or right license plate light does not illuminate | Bulb |
|
| License plate light assembly |
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right stop light does not illuminate | Rear combination light assembly |
|
| Harness or connector | - | |
| Center stop light does not illuminate | Center stop light assembly |
|
| Radio setting condenser |
|
|
| Harness or connector | - | |
| All of the stop lights do not illuminate | STOP fuse | - |
| Stop light switch assembly |
|
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right front fog light does not illuminate | Bulb |
|
| Harness or connector | - | |
| Both left and right front fog lights do not illuminate (taillights are normal) | Headlight dimmer switch circuit |
|
| Front fog light circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Both left and right back-up lights do not illuminate | ECU-IG NO. 2 fuse | - |
| Park/Neutral position switch assembly (for CVT) |
|
|
| Back-up light switch assembly (for Manual Transaxle (C50)) |
|
|
| Back-up light switch assembly (for Manual Transaxle (EC60)) |
|
|
| Harness or connector | - | |
| Left or right back-up light does not illuminate | Bulb |
|
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left or right turn signal light does not operate (except side turn signal lights) | Front turn signal light bulb (for LED Headlight) |
|
| Front turn signal light bulb (for Halogen Headlight) |
|
|
| Rear turn signal light bulb |
|
|
| Harness or connector | - | |
| Side turn signal light does not operate | Side turn signal light assembly |
|
| Outer rear view mirror assembly |
|
|
| Harness or connector | - | |
| Turn signal lights do not operate in one direction | Turn signal switch circuit |
|
| Meter/gauge system |
|
|
| All turn signal lights do not operate | TURN&HAZ fuse | - |
| Turn signal switch circuit |
|
|
| Combination meter assembly |
|
|
| All turn signal lights do not flash at the correct speed | Combination meter assembly |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Hazard warning lights do not operate | Hazard warning switch circuit |
|
| Combination meter assembly |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Light auto turn-off system does not operate | Headlight dimmer switch circuit |
|
| IG signal circuit |
|
|
| Front door courtesy switch circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
| Symptom | Suspected Area | Link |
|---|---|---|
| Daytime running light system does not operate (both left and right daytime running lights do not illuminate) | CAN communication system |
|
| Headlight dimmer switch circuit |
|
|
| IG signal circuit |
|
|
| Parking brake switch circuit |
|
|
| Daytime running light relay circuit |
|
|
| Main body ECU (Multiplex network body ECU) |
|
|
| One side daytime running light does not illuminate | Headlight assembly |
|
| Harness or connector | - |