Problem Symptoms Table
WARNING: This page is about a different car, the 2013 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
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 SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Low beam headlight on one side does not illuminate. | H-LP LH-LO fuse or H-LP RH-LO fuse | - |
| Harness or connector | - | |
| Headlight assembly | Refer to REMOVAL | |
| Both left and right low beam headlights do not illuminate. | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| Headlight relay circuit | Refer to Headlight Relay Circuit | |
| Harness or connector | - | |
| Main body ECU (Instrument panel junction block assembly) | - | |
| High beam flash function does not operate. | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| Main body ECU (Instrument panel junction block assembly) | - | |
| High beam headlight on one side does not illuminate. | H-LP LH-HI fuse or H-LP RH-HI fuse | - |
| Headlight bulb (High) | Refer to DISASSEMBLY | |
| Harness or connector | - | |
| Headlight assembly | Refer to REMOVAL | |
| Both left and right high beam headlights do not illuminate (low beam headlights are normal). | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| Headlight (High beam) circuit | Refer to Headlight (HI-BEAM) Circuit | |
| Harness or connector | - | |
| Main body ECU (Instrument panel junction block assembly) | - | |
| Side marker light does not illuminate. | Harness or connector | - |
| Headlight assembly | Refer to INSPECTION |
LICENSE PLATE LIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| License plate light does not illuminate. | License plate light bulb | Refer to DISASSEMBLY |
| License plate light assembly | Refer to REMOVAL | |
| Harness or connector | - |
TAILLIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Taillight does not illuminate. | Rear combination light assembly | Refer to INSPECTION |
| Harness or connector | - | |
| Side marker light does not illuminate. | Side marker light bulb | Refer to DISASSEMBLY |
| Rear combination light assembly | Refer to REMOVAL | |
| Harness or connector | - | |
| All lights do not illuminate. | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| Taillight relay circuit | Refer to Taillight Relay Circuit | |
| Harness or connector | - | |
| Main body ECU (Instrument panel junction block assembly) | - |
STOP LIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Stop light on one side does not illuminate. | Rear combination light assembly | Refer to INSPECTION |
| Harness or connector | - | |
| Center stop light does not illuminate. | Center stop light assembly | Refer to INSPECTION |
| Harness or connector | - | |
| All lights do not operate. | STOP fuse | - |
| IG2 1 fuse | - | |
| Stop light switch assembly | Refer to ON-VEHICLE INSPECTION | |
| Harness or connector | - |
BACK-UP LIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Back-up light on one side does not illuminate. | Back-up light bulb | Refer to DISASSEMBLY |
| Rear combination light assembly | Refer to REMOVAL | |
| Harness or connector | - | |
| Both left and right back-up lights do not illuminate. | Hybrid control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| BKUP LP fuse | - | |
| BK/UP LP relay | - | |
| Power management control ECU | Refer to REMOVAL | |
| Harness or connector | - |
TURN SIGNAL AND HAZARD WARNING LIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Hazard warning lights do not operate (turn signal lights are normal). | HAZ fuse | - |
| Hazard warning switch assembly | Refer to INSPECTION | |
| Harness or connector | - | |
| Turn signal flasher assembly | Refer to INSPECTION | |
| Turn signal lights do not operate (hazard warning lights are normal). | ECU-IG1 2 fuse | - |
| Headlight dimmer switch assembly | Refer to INSPECTION | |
| Turn signal flasher assembly | Refer to INSPECTION | |
| Harness or connector | - | |
| Hazard warning lights and turn signal lights do not operate. | HAZ fuse and ECU-IG1 2 fuse | - |
| Turn signal flasher assembly | Refer to INSPECTION | |
| Harness or connector | - | |
| Turn signal lights do not operate in one direction. | Headlight dimmer switch assembly | Refer to INSPECTION |
| Turn signal flasher assembly | Refer to INSPECTION | |
| Harness or connector | - | |
| Front turn signal light does not illuminate. | Front turn signal light bulb | Refer to DISASSEMBLY |
| Headlight assembly | Refer to REMOVAL | |
| Harness or connector | - | |
| Side turn signal light does not illuminate. | Side turn signal light assembly | Refer to REMOVAL |
| Harness or connector | - | |
| Outer mirror retractor | Refer to INSPECTION | |
| Rear turn signal light does not illuminate. | Rear turn signal light bulb | Refer to DISASSEMBLY |
| Rear combination light assembly | Refer to REMOVAL | |
| Harness or connector | - |
AUTOMATIC LIGHT CONTROL SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Automatic light control system does not operate. | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| IG signal circuit | Refer to IG Signal Circuit | |
| Main body ECU (Instrument panel junction block assembly) | - |
LIGHT AUTO TURN-OFF SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Light auto turn-off system does not operate. | Headlight dimmer switch circuit | Refer to Headlight Dimmer Switch Circuit |
| Door courtesy switch circuit | Refer to Door Courtesy Switch Circuit | |
| IG signal circuit | Refer to IG Signal Circuit | |
| Main body ECU (Instrument panel junction block assembly) | - |
DAYTIME RUNNING LIGHT SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Daytime running light (clearance light) does not operate. | Harness or connector | - |
| Daytime running light assembly | Refer to INSPECTION | |
| Daytime running light does not operate. | CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| H-LP relay | Refer to ON-VEHICLE INSPECTION | |
| Headlight dimmer switch circuit | 8 Headlight Dimmer Switch Circuit | |
| Parking brake switch circuit | Refer to Parking Brake Switch Circuit | |
| DRL relay circuit | Refer to DRL Relay Circuit | |
| Harness or connector | - | |
| Daytime running light assembly | Refer to INSPECTION | |
| Main body ECU (Instrument panel junction block assembly) | - |