Problem Symptoms Table
WARNING: This page is about a different car, the 2008 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 the problem symptom. 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 and tail light system
HEADLIGHT AND TAIL LIGHT SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| "Low beam" does not comes on (One side). | 1. HEAD LL fuse, HEAD RL fuse | HEADLIGHT RELAY CIRCUIT |
| 2. Bulb | HEADLIGHT RELAY CIRCUIT | |
| 3. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 4. Headlight relay circuit | HEADLIGHT RELAY CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU | |
| "Low beam" does not come on (Both sides). | 1. HEAD LL fuse, HEAD RL fuse | HEADLIGHT RELAY CIRCUIT |
| 2. Bulb | HEADLIGHT RELAY CIRCUIT | |
| 3. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 4. Headlight relay circuit | HEADLIGHT RELAY CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU | |
| "High beam" does not come on (One side). | 1. HEAD LH fuse, HEAD RH fuse | HEADLIGHT (HI-BEAM) CIRCUIT |
| 2. HEAD RL fuse | HEADLIGHT RELAY CIRCUIT | |
| 3. Bulb | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 4. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 5. Headlight (Hi-beam) circuit | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 6. Instrument panel junction block | TERMINALS OF ECU | |
| "High beam" does not come on (Both sides). | 1. HEAD LH fuse, HEAD RH fuse | HEADLIGHT (HI-BEAM) CIRCUIT |
| 2. HEAD RL fuse | HEADLIGHT RELAY CIRCUIT | |
| 3. Bulb | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 4. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 5. Headlight (Hi-beam) circuit | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 6. Instrument panel junction block | TERMINALS OF ECU | |
| "Low beam" and "High beam" do not come on (One side). | 1. HEAD LL fuse, HEAD RL fuse | HEADLIGHT RELAY CIRCUIT |
| 2. HEAD LH fuse, HEAD RH fuse | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 3. Bulb (high) | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 4. Bulb (low) | HEADLIGHT RELAY CIRCUIT | |
| 5. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 6. Headlight relay circuit | HEADLIGHT RELAY CIRCUIT | |
| 7. Headlight (Hi-beam) circuit | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 8. Instrument panel junction block | TERMINALS OF ECU | |
| "Low beam" and "High beam" do not come on (Both sides). | 1. HEAD LL fuse, HEAD RL fuse | HEADLIGHT RELAY CIRCUIT |
| 2. HEAD LH fuse, HEAD RH fuse | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 3. Bulb (high) | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 4. Bulb (low) | HEADLIGHT RELAY CIRCUIT | |
| 5. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 6. Headlight relay circuit | HEADLIGHT RELAY CIRCUIT | |
| 7. Headlight (Hi-beam) circuit | HEADLIGHT (HI-BEAM) CIRCUIT | |
| 8. Instrument panel junction block | TERMINALS OF ECU | |
| "Flash" does not come on (Low beam and Hi-beam are normal). | 1. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT |
| 2. Instrument panel junction block | TERMINALS OF ECU | |
| Headlight is dark. | 1. Bulb | - |
| 2. Wire harness | - | |
| Taillight does not come on (All). | 1. TAIL fuse | TAILLIGHT RELAY CIRCUIT |
| 2. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 3. Taillight relay circuit | TAILLIGHT RELAY CIRCUIT | |
| 4. Instrument panel junction block | TERMINALS OF ECU | |
| Only one front side marker light comes on. | 1. Bulb | TAILLIGHT RELAY CIRCUIT |
| 2. Wire harness | TAILLIGHT RELAY CIRCUIT | |
| Only one taillight comes on. | 1. Rear combination light | REAR COMBINATION LIGHT ASSEMBLY |
| 2. Wire harness | TAILLIGHT RELAY CIRCUIT | |
| Only one rear side marker light comes on. | 1. Bulb | TAILLIGHT RELAY CIRCUIT |
| 2. Wire harness | TAILLIGHT RELAY CIRCUIT | |
| Daytime running light system does not operate. | 1. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT |
| 2. CAN communication line | ECM COMMUNICATION STOP MODE | |
| 3. Parking brake switch circuit | ||
| 4. Daytime running light relay circuit | DRL RELAY CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU |
Light auto turn off system
LIGHT AUTO TURN OFF SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Light auto turn off system does not operate. | 1. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT |
| 2. Ignition switch | ||
| 3. Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 4. Instrument panel junction block | TERMINALS OF ECU |
Fog light system
FOG LIGHT SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Front fog light does not come on with light control switch in TAIL or HEAD position. | 1. FF FOG fuse | FRONT FOG LIGHT CIRCUIT |
| 2. Front fog light relay | FRONT FOG LIGHT CIRCUIT | |
| 3. Light control switch circuit | LIGHT CONTROL SWITCH CIRCUIT | |
| 4. Front fog light circuit | FRONT FOG LIGHT CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU | |
| Only one front fog light does not come on. | 1. Bulb | FRONT FOG LIGHT CIRCUIT |
| 2. Wire harness | FRONT FOG LIGHT CIRCUIT |
Turn signal and hazard warning system
TURN SIGNAL AND HAZARD WARNING SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| "Hazard" and "Turn" do not come on. | 1. HAZ fuse | HAZARD WARNING SWITCH CIRCUIT |
| 2. ECU-IG2 fuse | TURN SIGNAL LIGHT CIRCUIT | |
| 3. Ignition switch | ||
| 4. Turn signal flasher relay | TURN SIGNAL FLASHER ASSEMBLY | |
| 5. Wire harness | - | |
| Hazard warning light does not come on (Turn is normal). | 1. Hazard warning switch | HAZARD WARNING SWITCH CIRCUIT |
| 2. Wire harness | HAZARD WARNING SWITCH CIRCUIT | |
| Turn signal does not come on (Hazard is normal). | 1. Headlight dimmer switch (turn signal switch) | TURN SIGNAL LIGHT CIRCUIT |
| 2. Wire harness | TURN SIGNAL LIGHT CIRCUIT | |
| Turn signal does not come on in one direction. | 1. Headlight dimmer switch (turn signal switch) | TURN SIGNAL LIGHT CIRCUIT |
| 2. Wire harness | TURN SIGNAL LIGHT CIRCUIT | |
| Only one bulb does not come on. | 1. Bulb | TURN SIGNAL LIGHT CIRCUIT |
| 2. Wire harness | TURN SIGNAL LIGHT CIRCUIT |
Stop light system
STOP LIGHT SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Stop light does not operate (All). | 1. STOP fuse | STOP LIGHT SWITCH CIRCUIT |
| 2. BRK relay | BRK RELAY | |
| 3. Stop light switch | ||
| 4. Wire harness | STOP LIGHT SWITCH CIRCUIT | |
| Only one stop light does not operate. | 1. Rear combination light | REAR COMBINATION LIGHT ASSEMBLY |
| 2. Wire harness | STOP LIGHT SWITCH CIRCUIT |
Illuminated entry system
ILLUMINATED ENTRY SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Illuminated entry of multiplex network body ECU control does not operate (All). | 1. Ignition switch | REMOVAL (2AZ-FE) or REMOVAL (2GR-FE) |
| 2. Door lock position circuit | DOOR LOCK POSITION CIRCUIT | |
| 3. Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 4. Illumination circuit | FOOTWELL LIGHT CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU |
Foot light system
FOOT LIGHT SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Step light of body ECU control does not operate. | 1. Ignition switch | REMOVAL (2AZ-FE) or REMOVAL (2GR-FE) |
| 2. Door lock position switch | DOOR LOCK POSITION CIRCUIT | |
| 3. Door courtesy switch circuit | DOOR COURTESY SWITCH CIRCUIT | |
| 4. Footwell light circuit | FOOTWELL LIGHT CIRCUIT | |
| 5. Instrument panel junction block | TERMINALS OF ECU |
Others
OTHERS
| Symptom | Suspected Area | See |
|---|---|---|
| Vanity light does not operate. | 1. Bulb | VANITY LIGHT |
| 2. Vanity light switch | VANITY LIGHT | |
| 3. Wire harness | - | |
| Back-up light does not come on (All). | 1. GAUGE 1 fuse | BACK-UP LIGHT CIRCUIT |
| 2. Park / neutral position switch | INSPECTION | |
| 3. Wire harness | BACK-UP LIGHT CIRCUIT | |
| Back door courtesy light does not come on. | 1. Bulb | LUGGAGE ROOM LIGHT |
| 2. DOME fuse | - | |
| 3. Back door courtesy switch | BACK DOOR COURTESY SWITCH | |
| 4. Wire harness | - | |
| Center console illumination does not come on. | 1. Center console light | FRONT CONSOLE ILLUMINATION |
| 2. Wire harness | - |