Note
w/ Automatic High Beam System:
When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
w/ Automatic High Beam System:
If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.
Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.
Inspect the fuse and bulb for circuits related to this system before performing the following procedure.
| Symptom | Suspected Area | Link |
|---|---|---|
| Left low beam headlight does not illuminate. | Headlight unit LH | |
| Headlight unit assembly LH | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Right low beam headlight does not illuminate. | Headlight unit RH | |
| Headlight unit assembly RH | ||
| No. 1 headlight ECU sub-assembly RH | ||
| Both left and right low beam headlight does not illuminate. | Headlight dimmer switch circuit | |
| Main body ECU (multiplex network body ECU) | ||
| Left high beam headlight does not illuminate. | Headlight unit LH | |
| Headlight unit assembly LH | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Right high beam headlight does not illuminate. | Headlight unit RH | |
| Headlight unit assembly RH | ||
| No. 1 headlight ECU sub-assembly RH | ||
| Both left and right high beam headlight does not illuminate. | Headlight dimmer switch circuit | |
| Main body ECU (multiplex network body ECU) | ||
| High Flash (passing function) does not operate (high beam headlights are normal). | Headlight dimmer switch circuit | |
| Main body ECU (Multiplex network body ECU) | ||
| Left low beam headlight, high beam headlight, daytime running light and clearance light does not illuminate. | Power source circuit | |
| No. 1 headlight ECU sub-assembly LH | ||
| Right low beam headlight, high beam headlight, daytime running light and clearance light does not illuminate. | Power source circuit | |
| No. 1 headlight ECU sub-assembly RH |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left daytime running light, clearance light does not illuminate. | Clearance light/daytime running light circuit | |
| No. 1 headlight ECU sub-assembly LH | ||
| Right daytime running light, clearance light does not illuminate. | Clearance light/daytime running light circuit | |
| No. 1 headlight ECU sub-assembly RH | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Both left and right daytime running lights do not illuminate. | Headlight dimmer switch circuit | |
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left taillight (rear combination light assembly) do not illuminate. | Rear combination light lens and body LH | |
| Rear combination light socket and wire sub-assembly LH | ||
| Harness or connector | - | |
| Right taillight (rear combination light assembly) do not illuminate. | Rear combination light lens and body RH | |
| Rear combination light socket and wire sub-assembly RH | ||
| Harness or connector | - | |
| License plate light does not illuminate. | License plate light bulb (w/ Tire Carrier) | |
| License plate light bulb (w/o Tire Carrier) | ||
| License plate light socket and wire (w/ Tire Carrier) | ||
| License plate light socket and wire (w/o Tire Carrier) | ||
| Luggage electrical key switch (w/ Entry and Start System) | ||
| Harness or connector | - | |
| All of the taillights and license plate lights do not illuminate. | Taillight circuit | |
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left front fog light does not illuminate. | Fog light assembly LH | |
| Harness or connector | - | |
| Right front fog light does not illuminate. | Fog light assembly RH | |
| Harness or connector | - | |
| Both left and right front fog lights do not illuminate. | Headlight dimmer switch circuit | |
| Front fog light circuit | ||
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left rear fog light does not illuminate. | Rear fog light bulb | |
| Rear fog light socket and wire LH | ||
| Harness or connector | - | |
| Right rear fog light does not illuminate. | Rear fog light bulb | |
| Rear fog light socket and wire RH | ||
| Harness or connector | - | |
| Both left and right rear fog lights do not illuminate. | Headlight dimmer switch circuit | |
| Rear fog light circuit | ||
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left back-up light does not illuminate. | Back-up light bulb | |
| Rear combination light socket and wire sub-assembly LH | ||
| Harness or connector | - | |
| Right back-up light does not illuminate. | Back-up light bulb | |
| Rear combination light socket and wire sub-assembly RH | ||
| Harness or connector | - | |
| Both left and right back-up lights do not illuminate. | BKUP LP fuse | - |
| Back -up light switch assembly (for R150F) | ||
| Back -up light switch assembly (for RA61F) | ||
| Park/neutral position switch assembly (for AC60F) | ||
| Park/neutral position switch assembly (for A750F) | ||
| Driver side junction block assembly (BKUP LP relay, IG NO.2 relay) | ||
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left stop light (rear combination light assembly) does not illuminate. | Rear combination light LED | |
| Rear combination light socket and wire sub-assembly LH | ||
| Harness or connector | - | |
| Right stop light (rear combination light assembly) does not illuminate. | Rear combination light LED | |
| Rear combination light socket and wire sub-assembly RH | ||
| Harness or connector | - | |
| Center stop light does not illuminate. | Center stop light assembly | |
| Harness or connector | - | |
| All stop light does not illuminate. | STOP fuse | - |
| Stop light switch assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | Link |
|---|---|---|
| Left front turn signal light does not illuminate. | Meter/gauge system | |
| Front turn signal light bulb | ||
| Front turn signal light socket | ||
| Headlight unit LH | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Harness or connector | - | |
| Right front turn signal light does not illuminate. | Meter/gauge system | |
| Front turn signal light bulb | ||
| Front turn signal light socket | ||
| Headlight unit RH | ||
| No. 1 headlight ECU sub-assembly RH | ||
| Harness or connector | - | |
| Left side turn signal light does not illuminate. | Meter/gauge system | |
| Side turn signal light assembly LH | ||
| Outer rear view mirror assembly LH | ||
| Outer mirror control ECU assembly LH (w/ Reverse Shift-linked Mirror) | ||
| Harness or connector | - | |
| Right side turn signal light does not illuminate. | Meter/gauge system | |
| Side turn signal light assembly RH | ||
| Outer rear view mirror assembly RH | ||
| Outer mirror control ECU assembly RH (w/ Reverse Shift-linked Mirror) | ||
| Harness or connector | - | |
| Left rear turn signal light does not illuminate. | Meter/gauge system | |
| Rear turn signal light bulb | ||
| Rear combination light socket and wire sub-assembly LH | ||
| Harness or connector | - | |
| Right rear turn signal light does not illuminate. | Meter/gauge system | |
| Rear turn signal light bulb | ||
| Rear combination light socket and wire sub-assembly RH | ||
| Harness or connector | - | |
| Turn signal light does not operate in one direction. | Meter/gauge system | |
| Turn signal switch circuit | ||
| Combination meter assembly | ||
| All turn signal light does not illuminate. | Turn signal switch circuit | |
| Combination meter assembly | ||
| All turn signal light does not flash at the correct speed. | Combination meter assembly |
| Symptom | Suspected Area | Link |
|---|---|---|
| Hazard warning signal lights do not operate. | Hazard warning switch circuit | |
| Combination meter assembly |
| Symptom | Suspected Area | Link |
|---|---|---|
| Light auto turn-off system does not operate. | Headlight dimmer switch circuit | |
| IG signal circuit | ||
| Door courtesy switch circuit | ||
| Back door courtesy switch circuit | ||
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic headlight beam level control system does not operate (Left Headlight). | Headlight unit LH | |
| Headlight leveling motor LH | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Automatic headlight beam level control system does not operate (Right Headlight). | Headlight unit RH | |
| Headlight leveling motor RH | ||
| No. 1 headlight ECU sub-assembly RH | ||
| Initialization cannot be performed. | CAN communication system | |
| No. 1 headlight ECU sub-assembly LH |
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic light control system does not operate. | Headlight dimmer switch circuit | |
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Welcome light illumination control does not operate. | Check customize parameters (Light up Clearance Lights at Door Unlock Function) | |
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Follow me home system does not operate. | IG signal circuit | |
| Headlight dimmer switch circuit | ||
| Main body ECU (multiplex network body ECU) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic high beam system does not operate or operation indicator does not illuminate. | Check automatic high beam indicator light | |
| Check Data List (Auto H Beam STS) | ||
| Check Active Test (Automatic High Beam Indicator) | ||
| Check automatic high beam main switch | ||
| Forward recognition camera | ||
| Main body ECU (multiplex network body ECU) | ||
| Combination meter assembly | ||
| Harness or connector |