Problem Symptoms Table
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.
- Inspect the fuse and relay related to this system before inspecting the suspected areas below.
- Problem symptoms may occur if the electric power control system's functions malfunction. Follow the HOW TO PROCEED WITH TROUBLESHOOTING procedures.
Headlight and taillight system
PROBLEM SYMPTOMS CHART - HEADLIGHT AND TAILLIGHT SYSTEMSymptom Suspected Area Refer To "LO-beam" headlight does not illuminate LO-beam Headlight does not Illuminate LO-BEAM HEADLIGHT DOES NOT ILLUMINATE "Hl-beam" headlight does not illuminate HI-beam Headlight does not Illuminate HI-BEAM HEADLIGHT DOES NOT ILLUMINATE "Flash" headlight does not illuminate Data List (HIGH FLASHER SW) DATA LIST / ACTIVE TEST Headlight dimmer switch HEADLIGHT DIMMER SWITCH Harness or connector - Windshield wiper switch (Combination ECU) TERMINALS OF ECU Headlight is dark (for HID Headlight) Headlight control ECU - Discharge headlight bulb - Harness or connector - Front side marker light does not illuminate Clearance Light does not Illuminate CLEARANCE LIGHT DOES NOT ILLUMINATE Rear side marker light does not illuminate Clearance Light does not Illuminate CLEARANCE LIGHT DOES NOT ILLUMINATE Taillight does not illuminate or has abnormal operation Clearance Light does not Illuminate CLEARANCE LIGHT DOES NOT ILLUMINATE Stop light system
PROBLEM SYMPTOMS CHART - STOP LIGHT SYSTEMSymptom Suspected Area Refer To Stop light system does not illuminate Stop Light does not Illuminate STOP LIGHT DOES NOT ILLUMINATE High mounted stop light does not illuminate Stop Light does not Illuminate STOP LIGHT DOES NOT ILLUMINATE Front fog light system
PROBLEM SYMPTOMS CHART - FRONT FOG LIGHT SYSTEMSymptom Suspected Area Refer To Fog light does not illuminate or has abnormal operation Front Fog Light does not Illuminate FRONT FOG LIGHT DOES NOT ILLUMINATE Turn signal light system
PROBLEM SYMPTOMS CHART - TURN SIGNAL LIGHT SYSTEMSymptom Suspected Area Refer To Turn signal light does not illuminate Turn Signal Light does not Illuminate TURN SIGNAL LIGHT DOES NOT ILLUMINATE Hazard warning light does not illuminate Hazard warning signal switch HAZARD WARNING SWITCH Main body ECU TERMINALS OF ECU Turn signal flasher assembly TURN SIGNAL FLASHER ASSEMBLY Harness or connector - Interior light system
PROBLEM SYMPTOMS CHART - INTERIOR LIGHT SYSTEMSymptom Suspected Area Refer To Room light does not illuminate or has abnormal operation Room Light Control does not Operate ROOM LIGHT CONTROL DOES NOT OPERATE Map light does not illuminate Map light assembly - Personal light does not illuminate or has abnormal operation Personal Light does not Illuminate PERSONAL LIGHT DOES NOT ILLUMINATE Console spot light does not illuminate Map light assembly - Vanity light does not illuminate Vanity light - Visor assembly VANITY LIGHT (FOR FRONT) Harness or connector - Rear vanity light does not illuminate Rear Vanity Light does not Illuminate REAR VANITY LIGHT DOES NOT ILLUMINATE Inside handle light does not illuminate Inside Handle Light does not Illuminate INSIDE HANDLE LIGHT DOES NOT ILLUMINATE Door courtesy light does not illuminate Door Courtesy Light does not Illuminate DOOR COURTESY LIGHT DOES NOT ILLUMINATE Interior foot light does not illuminate Interior Foot Light does not Illuminate INTERIOR FOOT LIGHT DOES NOT ILLUMINATE Power switch (illumination) does not illuminate Power switch INSPECTION Main body ECU TERMINALS OF ECU Harness or connector - Rear ash tray light does not illuminate Active test (ASHTRAY LIGHT) DATA LIST / ACTIVE TEST Bulb - Rear multiplex network door ECU TERMINALS OF ECU Main body ECU TERMINALS OF ECU Harness or connector - Seat inner belt light does not illuminate Front seat inner belt assembly INSPECTION Rear seat inner belt assembly - Rear junction block ECU TERMINALS OF ECU Main body ECU TERMINALS OF ECU Harness or connector - Luggage room light does not illuminate Luggage Room Light does not Illuminate LUGGAGE ROOM LIGHT DOES NOT ILLUMINATE Automatic light control system
PROBLEM SYMPTOMS CHART - AUTOMATIC LIGHT CONTROL SYSTEMSymptom Suspected Area Refer To Automatic light control function does not operate Automatic Light Control Function does not Operate AUTOMATIC LIGHT CONTROL FUNCTION DOES NOT OPERATE Light auto turn off system
PROBLEM SYMPTOMS CHART - LIGHT AUTO TURN OFF SYSTEMSymptom Suspected Area Refer To Light auto turn off system does not operate normally Main body ECU - Battery saving system
PROBLEM SYMPTOMS CHART - BATTERY SAVING SYSTEMSymptom Suspected Area Refer To Battery saving function does not operate Operation check OPERATION CHECK Main body ECU - Map light assembly - Rear junction block ECU - Harness or connector - AFS
PROBLEM SYMPTOMS CHART - AFSSymptom Suspected Area Refer To AFS OFF switch does not operate Outer mirror switch - AFS ECU - CAN communication system CAN COMMUNICATION SYSTEM Daytime running light system
PROBLEM SYMPTOMS CHART - DAYTIME RUNNING LIGHT SYSTEMSymptom Suspected Area Refer To Daytime running light system does not operate No 1 headlight bulb - Headlight dimmer switch - Parking brake switch - Multiplex network front light ECU (Front controller) - Main body ECU - Harness or connector - CAN communication system CAN COMMUNICATION SYSTEM Other
PROBLEM SYMPTOMS CHART - OTHERSymptom Suspected Area Refer To Back-up light does not illuminate Back-up light does not Illuminate BACK-UP LIGHT DOES NOT ILLUMINATE Clearance light does not illuminate Clearance light does not Illuminate CLEARANCE LIGHT DOES NOT ILLUMINATE License plate light does not illuminate Clearance light does not Illuminate CLEARANCE LIGHT DOES NOT ILLUMINATE Door mirror foot light does not illuminate Door mirror foot light does not Illuminate DOOR MIRROR FOOT LIGHT DOES NOT ILLUMINATE