PROBLEM SYMPTOMS TABLE
NOTICE:
HINT:
Symptom | Suspected Area | Link |
---|---|---|
One low beam headlight does not illuminate. | Harness or connector | - |
Headlight assembly |
| |
Both left and right low beam headlights do not illuminate. | Headlight relay (H-LP [LO]) |
|
Headlight dimmer switch circuit |
| |
Low beam headlight circuit |
| |
Main body ECU (Multiplex network body ECU) |
| |
One high beam headlight does not illuminate. | Harness or connector | - |
Headlight assembly |
| |
Both left and right high beam headlights do not illuminate. | Headlight dimmer relay (H-LP LH/DIMMER [HI]) |
|
Headlight dimmer switch circuit |
| |
High beam headlight circuit |
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Main body ECU (Multiplex network body ECU) |
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High beam flash function does not operate (high beam headlights are normal). | Headlight dimmer switch circuit |
|
Main body ECU (Multiplex network body ECU) |
| |
One front side marker light does not illuminate. | Headlight assembly |
|
Harness or connector | - | |
Both left and right side marker lights do not illuminate. | Harness or connector | - |
Instrument panel junction block assembly |
|
Symptom | Suspected Area | Link |
---|---|---|
One side marker light does not illuminate. | Headlight assembly |
|
Harness or connector | - |
Symptom | Suspected Area | Link |
---|---|---|
One clearance light on right side does not illuminate. | Clearance light assembly |
|
Harness or connector | - |
Symptom | Suspected Area | Link |
---|---|---|
Both left and right daytime running lights do not illuminate. | Headlight dimmer switch circuit |
|
Main body ECU (Multiplex network body ECU) |
| |
Harness or connector | - | |
One daytime running light does not illuminate. | Daytime running light relay circuit |
|
Harness or connector | - | |
One clearance light and daytime running light does not illuminate. | Daytime running light relay circuit |
|
Harness or connector | - |
Symptom | Suspected Area | Link |
---|---|---|
Both front fog lights do not illuminate (taillight is normal). | Headlight dimmer switch circuit |
|
Front fog light circuit |
| |
Main body ECU (Multiplex network body ECU) |
|
Symptom | Suspected Area | Link |
---|---|---|
License plate light does not illuminate. | Harness or connector | - |
License plate light assembly LH |
| |
License plate light assembly RH |
|
Symptom | Suspected Area | Link |
---|---|---|
Taillight (rear combination light assembly) does not illuminate. | Rear combination light socket and wire sub-assembly |
|
Rear combination light assembly |
| |
Harness or connector | - | |
Instrument panel junction block assembly |
| |
Taillight (rear light assembly) does not illuminate. | Rear light assembly |
|
Harness or connector | - | |
Instrument panel junction block assembly |
| |
All of the taillights do not illuminate | Headlight dimmer switch circuit |
|
Taillight relay circuit |
| |
Main body ECU (Multiplex network body ECU) |
|
Symptom | Suspected Area | Link |
---|---|---|
Stop light (rear combination light assembly) on one side does not illuminate. | Rear combination light socket and wire sub-assembly |
|
Rear combination light assembly |
| |
Harness or connector | - | |
Stop light (rear light assembly) on one side does not illuminate. | Rear light assembly |
|
Harness or connector | - | |
Center stop light does not illuminate. | Center stop light assembly |
|
Harness or connector | - | |
All of the stop lights do not operate. | Harness or connector | - |
Stop light switch assembly |
| |
Stop light control ECU assembly |
|
Symptom | Suspected Area | Link |
---|---|---|
All of the back-up lights do not operate. | Harness or connector | - |
Instrument panel junction block assembly [BKUP LP relay] |
| |
Hybrid vehicle control ECU |
| |
Back-up light on one side does not illuminate. | Rear light assembly |
|
Harness or connector | - |
Symptom | Suspected Area | Link |
---|---|---|
No turn signal lights operate (hazard warning lights are normal). | Turn signal switch circuit |
|
Combination meter assembly |
| |
One of the turn signal lights does not operate. | Meter/gauge system |
|
Symptom | Suspected Area | Link |
---|---|---|
Hazard warning lights do not operate (turn signal lights are normal). | Harness or connector | - |
Hazard warning switch circuit |
| |
Combination meter assembly |
|
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 |
---|---|---|
Light auto turn-off system does not operate. | Headlight dimmer switch circuit |
|
Door courtesy switch circuit |
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IG signal circuit |
| |
Main body ECU (Multiplex network body ECU) |
|
Symptom | Suspected Area | Link |
---|---|---|
Welcome light illumination control does not operate. | Wireless door lock control system |
|
Headlight dimmer switch circuit |
| |
Main body ECU (Multiplex network body ECU) |
|
Symptom | Suspected Area | Link |
---|---|---|
Lexus Enform Remote does not operate (lighting system is normal). | Telematics system |
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