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Problem Symptoms Table

WARNING: This page is about a different variant/trim than selected.

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 AND TAILLIGHT (FOR HALOGEN HEADLIGHT)

Symptom Suspected Area See
One low beam headlight does not illuminate. Bulb -
No. 1 integration relay Refer to REMOVAL
Harness or connector -
Both left and right low beam headlights do not illuminate. Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Low beam headlight circuit Refer to Low Beam Headlight Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
One high beam headlight does not illuminate. H-LP LH HI fuse or H-LP RH HI fuse -
Bulb -
No. 1 integration relay Refer to REMOVAL
Harness or connector -
Both left and right high beam headlights do not illuminate. H-LP HI MAIN FUSE -
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
High beam headlight circuit Refer to High Beam Headlight Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
"High Flash" (passing function) headlight does not illuminate (high beam headlights are normal). Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
One front parking light does not illuminate. Bulb -
Harness or connector -
One rear taillight does not illuminate. Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Harness or connector -
One license plate light does not illuminate. Bulb -
Harness or connector -
One front side marker light does not illuminate. Bulb -
Harness or connector -
One rear side marker light does not illuminate. Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Harness or connector -
All of the lights (rear taillights, front side marker lights, parking lights, license plate lights and rear side marker lights) do not illuminate. (TAIL fuse is normal.) TAIL fuse -
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Taillight relay circuit Refer to Taillight Relay Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
All of the lights (rear taillights, front side marker lights, parking lights, license plate lights and rear side marker lights) do not illuminate. (Although the TAIL fuse is replaced the fuse breaks again.) License palate light assembly Refer to INSPECTION
Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Headlight assembly Refer to REMOVAL
Harness or connector -
HEADLIGHT AND TAILLIGHT (FOR LED HEADLIGHT)

Symptom Suspected Area See
One low beam headlight does not illuminate. Check DTCs -
Light control ECU Refer to REMOVAL
No. 1 integration relay Refer to REMOVAL
Headlight unit Refer to REMOVAL
Harness or connector -
Both left and right low beam headlights do not illuminate. Check DTCs Refer to DTC CHECK / CLEAR 
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Low beam headlight circuit Refer to Low Beam Headlight Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
"High Flash" (passing function) headlight does not illuminate (high beam headlights are normal). Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
One front parking light does not illuminate. Bulb -
Harness or connector -
One rear taillight does not illuminate. Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Harness or connector -
One license plate light does not illuminate. Bulb -
Harness or connector -
One front side marker light does not illuminate. Bulb -
Harness or connector -
One rear side marker light does not illuminate. Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Harness or connector -
All of the lights (rear taillights, front side marker lights, parking lights, license plate lights and rear side marker lights) do not illuminate. (TAIL fuse is normal.) TAIL fuse -
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Taillight relay circuit Refer to Taillight Relay Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
All of the lights (rear taillights, front side marker lights, parking lights, license plate lights and rear side marker lights) do not illuminate. (Although the TAIL fuse is replaced the fuse breaks again.) License palate light assembly Refer to INSPECTION
Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Headlight assembly Refer to REMOVAL
Harness or connector -
STOP LIGHT

Symptom Suspected Area See
One side stop light does not illuminate. Rear combination light assembly Refer to ON-VEHICLE INSPECTION
Harness or connector -
High mounted stop light does not illuminate. High mounted stop light assembly Refer to INSPECTION
Harness or connector -
All of the stop lights do not illuminate. STOP fuse -
Stop light switch assembly Refer to INSPECTION
Stop light control ECU assembly Refer to INSPECTION
Harness or connector -
Stop lights remain on. Electronically controlled brake system Refer to HOW TO PROCEED WITH TROUBLESHOOTING
Stop light switch assembly Refer to INSPECTION
Stop light control ECU assembly Refer to INSPECTION
Harness or connector -
Brake booster with master cylinder assembly Refer to REMOVAL
FRONT FOG LIGHT

Symptom Suspected Area See
One front fog light does not illuminate. Bulb -
Harness or connector -
Both left and right front fog lights do not illuminate (taillights are normal). FR FOG fuse -
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Front fog light circuit Refer to Front Fog Light Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
BACK-UP LIGHT

Symptom Suspected Area See
One back-up light does not illuminate. Bulb -
Harness or connector -
Both left and right back-up lights do not illuminate. P/I 2 fuse -
Back-up light circuit Refer to Back-up Light Circuit
Power management control ECU Refer to REMOVAL
TURN SIGNAL LIGHT

Symptom Suspected Area See
One turn signal light does not operate (except side turn signal lights). Bulb -
Harness or connector -
Turn signal lights do not operate in one direction. Headlight dimmer switch assembly (Turn signal light switch) Refer to INSPECTION
Turn signal flasher assembly Refer to INSPECTION
Harness or connector -
All turn signal lights do not operate. ECU-IG NO. 2 fuse -
HAZ fuse -
Headlight dimmer switch assembly (Turn signal light switch) Refer to INSPECTION
Turn signal flasher assembly Refer to INSPECTION
Harness or connector -
All turn signal lights do not flash at the correct speed. Bulb -
Turn signal flasher assembly Refer to INSPECTION
Harness or connector -
HAZARD WARNING LIGHT

Symptom Suspected Area See
Hazard warning lights do not operate. HAZ fuse -
ECU-IG NO. 2 fuse -
Hazard warning switch Refer to INSPECTION
Turn signal flasher assembly Refer to INSPECTION
Harness or connector -
Hazard warning lights operate when the hazard warning switch is not turned on. Electronically controlled brake system Refer to HOW TO PROCEED WITH TROUBLESHOOTING
Hazard warning switch Refer to INSPECTION
Turn signal flasher assembly Refer to INSPECTION
Harness or connector -
Brake booster with master cylinder assembly Refer to REMOVAL
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
AUTOMATIC LIGHT CONTROL SYSTEM

Symptom Suspected Area See
Automatic light control system does not operate. Check DTCs Refer to DTC CHECK / CLEAR 
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
IG signal circuit Refer to IG Signal Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
LIGHT AUTO TURN-OFF SYSTEM

Symptom Suspected Area See
Light auto turn-off system does not operate. Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
Front door courtesy switch circuit Refer to Front Door Courtesy Switch Circuit
Rear door courtesy switch circuit Refer to Rear Door Courtesy Switch Circuit
Door unlock detection switch circuit Refer to Door Unlock Detection Switch Circuit
IG signal circuit Refer to IG Signal Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
DAYTIME RUNNING LIGHT SYSTEM

Symptom Suspected Area See
Daytime running light system does not operate. CAN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING
Headlight dimmer switch circuit Refer to Headlight Dimmer Switch Circuit
IG signal circuit Refer to IG Signal Circuit
Parking brake switch circuit Refer to Parking Brake Switch Circuit
Daytime running light relay circuit Refer to Daytime Running Light Relay Circuit
Main body ECU (Multiplex network body ECU) Refer to REMOVAL
CHARGING INLET LIGHT (CHARGE LID LIGHT)

Symptom Suspected Area See
Charge lid light does not operate. Spot light assembly Refer to INSPECTION
Indicator light assembly (Courtesy switch inspection) Refer to INSPECTION
Harness or connector -
Plugin charge control ECU assembly Refer to REMOVAL