Symptom Table
SYMPTOM DESCRIPTION - HEADLIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| The headlights (both LO and HI beam) don't turn on. | MAIN fuse | - |
| Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT | |
| Main body ECM (Network gateway computer) | - | |
| Vehicle wiring harness and connector | - | |
| The headlights (LO beam) don't turn on. | H-LP LH-LO fuse, H-LP RH-LO fuse | - |
| Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT | |
| Low beam headlight circuit | LOW BEAM HEADLIGHT CIRCUIT | |
| Main body ECM (Network gateway computer) | - | |
| Vehicle wiring harnesses and connectors (low beam headlight - H-LP relay, chassis ground) | - | |
| Headlight ASSY | - | |
| One of the headlights (LO beam) doesn't turn on. | H-LP LH LO, H-LP RH LO fuse | - |
| Headlight light control computer ASSY | - | |
| Headlight ASSY | - | |
| Vehicle wiring harnesses and connectors (low beam headlight - H-LP relay, chassis ground) | - | |
| Headlight ASSY | - | |
| The headlights (HI beam) don't turn on. | H-LP LH HI, H-LP RH HI fuse | - |
| Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT | |
| High beam headlight circuit | HIGH BEAM HEADLIGHT CIRCUIT | |
| Vehicle wiring harnesses and connectors (low beam headlight - DIM relay, chassis ground) | - | |
| Main body ECM (Network gateway computer) | - | |
| Headlight light control computer ASSY | - | |
| Headlight ASSY | - | |
| One of the headlights (HI beam) doesn't turn on. | H-LP LH HI, H-LP RH HI fuse | - |
| Headlight light control computer ASSY | - | |
| Vehicle wiring harnesses and connectors (low beam headlight - DIM relay, chassis ground) | - | |
| Headlight ASSY | - | |
| Flashing doesn't function. | Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT |
| Vehicle wiring harnesses and connectors (low beam headlight - DIM relay, chassis ground) | - | |
| The headlight (discharge bulb) flickers, is dark. | Headlight light control computer ASSY | - |
| Vehicle wiring harnesses and connectors (low beam headlight - H-LP relay, chassis ground) | - | |
| Headlight ASSY | - | |
| Clearance lights don't turn on. | Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT |
| Vehicle wiring harnesses and connectors (low beam headlight - H-LP relay, chassis ground) | - | |
| Headlight ASSY | - |
SYMPTOM DESCRIPTION - TAIL LIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| All tail lights (including the clearance lights and the license plate light) don't turn on. | TAIL fuse | - |
| Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT | |
| Tail light circuit | TAIL LIGHT CIRCUIT | |
| Main body ECM (Network gateway computer) | - | |
| Vehicle wiring harness and connector | - | |
| One of the tail lights doesn't turn on. | Rear combination light ASSY | - |
| Rear combination light socket & wiring SUB-ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - LICENSE PLATE LIGHT
| Symptoms | Inspection items | Reference |
|---|---|---|
| The license plate light doesn't turn on. | License plate light bulb | - |
| License plate light ASSY | LICENSE PLATE LIGHT | |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - FRONT FOG LIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| Both front fog lights don't turn on. | FR FOG RH, FR FOG LH fuse | - |
| FR FOG relay | - | |
| Headlight dimmer switch circuit | HEADLIGHT DIMMER SWITCH CIRCUIT | |
| Main body ECM (Network gateway computer) | - | |
| Vehicle wiring harnesses and connectors (front fog lights - instrument panel junction block ASSY, chassis ground) | - | |
| One front fog light doesn't turn on. | Fog light bulb | - |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - BACK-UP LIGHT
| Symptoms | Inspection items | Reference | ||||
|---|---|---|---|---|---|---|
| All back-up lights don't turn on. | BK/UP LP fuse | - | ||||
| Back-up light switch ASSY (1) | UNIT INSPECTION | |||||
| Neutral start switch ASSY (2) | UNIT INSPECTION | |||||
| Vehicle wiring harness and connector | - | |||||
| One of the back-up lights doesn't turn on. | Back-up light bulb | - | ||||
| Rear light sockets & wiring | - | |||||
| Vehicle wiring harness and connector | - | |||||
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SYMPTOM DESCRIPTION - STOP LIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| All stop lights don't turn on. | STOP fuse | - |
| Noise filter | UNIT INSPECTION | |
| Stop light switch ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - | |
| One of the stop lights doesn't turn on. | Rear combination light ASSY | - |
| Rear combination socket & wiring SUB-ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - HIGH-MOUNTED STOP LIGHT
| Symptoms | Inspection items | Reference |
|---|---|---|
| The high-mounted stop light does not turn on. | Center stop light ASSY | UNIT INSPECTION |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - TURN SIGNAL LIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| All turn signal lights don't turn on. | GAUGE fuse | - |
| Turn signal flasher ASSY | ON-VEHICLE INSPECTION | |
| Headlight dimmer switch ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - | |
| One of the front turn signal lights doesn't turn on. Front turn signal light bulb | Headlight ASSY | - |
| Front turn signal light socket & wiring LH | - | |
| Vehicle wiring harness and connector | - | |
| One of the side turn signal lights doesn't turn on. | Side turn signal light bulb | - |
| Side turn signal light ASSY | - | |
| Side turn signal light socket plug | - | |
| Vehicle wiring harness and connector | - | |
| One of the rear turn signal lights doesn't turn on. | Rear combination light ASSY | - |
| Rear combination socket & wiring SUB-ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - HAZARD WARNING SIGNAL LIGHTS
| Symptoms | Inspection items | Reference |
|---|---|---|
| Hazard lights don't function. (Turn signals function normally) | Turn signal flasher ASSY | ON-VEHICLE INSPECTION |
| Clock ASSY | UNIT INSPECTION | |
| Vehicle wiring harness and connector | - |
SYMPTOM DESCRIPTION - LIGHT AUTO CUT CONTROL
| Symptoms | Inspection items | Reference |
|---|---|---|
| Light auto cut system doesn't operate. (other controls function normally) | Front door courtesy light switch circuit | FRONT DOOR COURTESY LIGHT SWITCH CIRCUIT |
| IG signal circuit | IG SIGNAL CIRCUIT | |
| Main body ECM (Network gateway computer) | - |
SYMPTOM DESCRIPTION - DAYTIME RUNNING LIGHT SYSTEM
| Symptoms | Inspection items | Reference |
|---|---|---|
| Daytime running light system does not operate. | MPX-B fuse | - |
| DRL relay | - | |
| Low beam headlight relay circuit | LOW BEAM HEADLIGHT CIRCUIT | |
| Taillight relay circuit | TAIL LIGHT CIRCUIT | |
| Main body ECU (network gateway ECU) | - | |
| Harness or connector | - | |
| Headlight ASSY | - |