Tech Tips
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.
Symptom | Suspected Area | See page |
---|---|---|
Illuminated entry system does not operate. | CAN communication system (for LHD) | |
CAN communication system (for RHD) | ||
Entry and start system (for Entry Function) | ||
Luggage compartment door closer system (w/ Power Trunk Lid System) | ||
Lighting system (EXT) | ||
DOME fuse | - | |
Interior light circuit | ||
Door unlock detection switch circuit | ||
Door courtesy switch circuit | ||
Luggage compartment door courtesy switch circuit | ||
IG signal circuit | ||
ACC signal circuit | ||
Interior light auto cut circuit | ||
Harness or connector | - | |
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Map light assembly does not illuminate. | Map light assembly | |
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Spot light assembly does not illuminate. | Spot light assembly | |
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
No. 1 luggage compartment light assembly does not illuminate. | No. 1 luggage compartment light bulb | |
No. 1 luggage compartment light assembly | ||
Luggage compartment door closer system | ||
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
No. 1 luggage compartment light assembly does not illuminate. | No. 1 luggage compartment light bulb | |
No. 1 luggage compartment light assembly | ||
Luggage compartment door courtesy switch circuit | ||
Harness or connector | - | |
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Vanity light assembly does not illuminate. | Vanity light bulb | |
Visor assembly | ||
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Shift light does not illuminate. | LH-IG fuse | - |
Inner rear view mirror assembly | ||
Map light assembly | ||
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Front courtesy light assembly does not illuminate. | CAN communication system (for LHD) | |
CAN communication system (for RHD) | ||
Front courtesy light bulb | ||
Front courtesy light assembly | ||
Door courtesy switch circuit | ||
Door courtesy light Circuit | ||
Harness or connector | - | |
Front multiplex network door ECU LH | ||
Front multiplex network door ECU RH | ||
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Rear courtesy light assembly does not illuminate. | Rear courtesy light bulb | |
Door courtesy switch circuit | ||
Rear courtesy light assembly | ||
Harness or connector | - | |
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Glove box light does not illuminate. | Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Console box illumination light assembly does not illuminate. | Console box illumination light assembly | |
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Front door inside handle illumination light assembly and No. 1 interior illumination light assembly (front door ambient light) do not illuminate. | Illumination circuit | |
Front multiplex network door ECU LH | ||
Front multiplex network door ECU RH | ||
Main body ECU (Multiplex network body ECU) | ||
Rear door inside handle illumination light assembly, No. 1 interior illumination light assembly (rear door ambient light), front interior foot lights and No. 1 interior illumination light assembly (rear interior foot light) do not illuminate. | Illumination circuit | |
Main body ECU (Multiplex network body ECU) | ||
Rear door inside handle illumination light assembly does not illuminate. | Rear door inside handle illumination light assembly | |
Harness or connector | - | |
No. 1 interior illumination light assembly (rear door ambient light) does not illuminate. | No. 1 interior illumination light assembly (rear door ambient light) | |
Harness or connector | - | |
No. 1 interior illumination light assembly (rear interior foot light) does not illuminate. | No. 1 interior illumination light assembly (rear interior foot light) | |
Harness or connector | - | |
Front interior foot lights do not illuminate. | Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Door mirror foot light does not illuminate. | CAN communication system (for LHD) | |
CAN communication system (for RHD) | ||
Door mirror foot light circuit | ||
Front multiplex network door ECU LH | ||
Front multiplex network door ECU RH | ||
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Clock assembly does not illuminate. | Meter/gauge system | |
Clock assembly | ||
Harness or connector | - |
Symptom | Suspected Area | See page |
---|---|---|
Battery saving function does not operate. | Door courtesy switch circuit | |
Luggage compartment door courtesy switch circuit | ||
IG signal circuit | ||
Interior light auto cut circuit | ||
Harness or connector | - | |
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
Power switch illumination does not illuminate. | CAN communication system (for LHD) | |
CAN communication system (for RHD) | ||
Headlight dimmer switch circuit | ||
Power switch illumination circuit | ||
Certification ECU (Smart key ECU assembly) | - | |
Main body ECU (Multiplex network body ECU) |
Symptom | Suspected Area | See page |
---|---|---|
No instrument panel illumination lights come on (taillights operate normally). | Instrument panel illumination circuit | |
Harness or connector | - | |
No. 2 integration relay | ||
Main body ECU (Multiplex network body ECU) |