RM38N0EC _59 Vehicle Exterior _111834 LIGHTING (EXT) _0499887 LIGHTING SYSTEM T

LIGHTING (EXT)  LIGHTING SYSTEM  PROBLEM SYMPTOMS TABLE  


NOTICE:
·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

·

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.

·

When replacing the combination meter assembly, update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY



HINT:

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
Symptom Suspected Area Link
Left or right low beam headlight does not illuminate Headlight assembly Click here
Harness or connector -
Both left and right low beam headlights do not illuminate Headlight dimmer switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here
Left or right high beam headlight does not illuminate High beam headlight circuit Click here
Both left and right high beam headlights do not illuminate Headlight dimmer switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here
High Flash (passing function) does not operate (high beam headlights are normal) Headlight dimmer switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Clearance Light
Symptom Suspected Area Link
Left or right clearance light does not illuminate Headlight assembly Click here
Harness or connector -
Both left and right clearance lights do not illuminate Headlight dimmer switch circuit Click here
Harness or connector -

Daytime Running Light (w/Daytime Running Light)
Symptom Suspected Area Link
Left or right daytime running light does not illuminate Headlight assembly Click here
Harness or connector -
Both left and right daytime running lights do not illuminate Daytime running light circuit Click here
Headlight dimmer switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Taillight
Symptom Suspected Area Link
Left or right taillight (rear combination light assembly) does not illuminate Rear combination light assembly Click here
Harness or connector -
Left or right taillight (rear light assembly) does not illuminate Rear light assembly Click here
Harness or connector -
All of the taillights and license plate lights do not illuminate Headlight dimmer switch circuit Click here
Taillight relay circuit Click here
Main body ECU (Multiplex network body ECU) Click here

License Plate Light
Symptom Suspected Area Link
License plate light does not illuminate License plate light assembly with back door opener switch Click here
Harness or connector -

Stop Light
Symptom Suspected Area Link
Left or right stop light does not illuminate Rear combination light assembly Click here
Harness or connector -
All of the stop lights do not illuminate Stop light switch assembly Click here
Harness or connector -

High Mounted Stop Light
Symptom Suspected Area Link
High mounted stop light does not illuminate Center stop light assembly Click here
Harness or connector -

Back-up Light
Symptom Suspected Area Link
Left or right back-up light does not illuminate Rear turn signal light assembly Click here
Harness or connector -
Both left and right back-up lights do not illuminate Back-up light circuit Click here

Turn Signal Light
Symptom Suspected Area Link
Left or right front turn signal light does not operate Headlight assembly Click here
Harness or connector -
Left or right rear turn signal light does not operate Rear turn signal light assembly Click here
Harness or connector -
Left or right side turn signal light does not operate Side turn signal light assembly Click here
Outer rear view mirror assembly Click here
Outer mirror control ECU assembly*1 Click here
Harness or connector -
Turn signal lights do not operate in one direction Turn signal switch circuit Click here
Meter/gauge system*2 Click here
Meter/gauge system*3 Click here
All turn signal lights do not operate Turn signal switch circuit Click here
Combination meter assembly Click here
All turn signal lights do not flash at the correct speed Combination meter assembly Click here

*1: w/ Memory

*2: for Optitron Meter Type

*3: for TFT Meter Type


Front Fog Light
Symptom Suspected Area Link
Left or right front fog light does not illuminate Fog light LED Click here
Harness or connector -
Both left and right front fog lights do not illuminate Headlight dimmer switch circuit Click here
Front fog light circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Rear Fog Light
Symptom Suspected Area Link
Left or right rear fog light does not illuminate Rear turn signal light assembly Click here
Harness or connector -
Rear fog light does not illuminate Headlight dimmer switch circuit Click here
Rear fog light circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Hazard Warning Signal Light
Symptom Suspected Area Link
Hazard warning signal lights do not operate Hazard warning switch circuit Click here
Combination meter assembly Click here

Automatic Light Control System
Symptom Suspected Area Link
Automatic light control system does not operate Headlight dimmer switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Light Auto Turn-off System
Symptom Suspected Area Link
Light auto turn-off system does not operate Headlight dimmer switch circuit Click here
IG signal circuit Click here
Front door courtesy switch circuit Click here
Main body ECU (Multiplex network body ECU) Click here

Manual Headlight Beam Level Control System
Symptom Suspected Area Link
Headlight beam level control does not operate Headlight leveling switch Click here
Headlight assembly Click here
Harness or connector -

Door Mirror Foot Light (w/ Door Mirror Foot Light)
Symptom Suspected Area Link
Left or right door mirror foot light does not illuminate Door mirror foot light circuit Click here
Both left and right door mirror foot lights do not illuminate Power door lock control system Click here
Wireless door lock control system Click here
Smart key system (for entry function)*1 Click here
Smart key system (for entry function)*2 Click here
Door unlock detection switch circuit Click here
Door mirror foot light circuit Click here
Main body ECU (Multiplex network body ECU) Click here

*1: for HV Model

*2: for Gasoline Model


Wiper-linked Low Beam Headlight Control System
Symptom Suspected Area Link
Wiper-linked low beam headlight control system does not operate Main body ECU (Multiplex network body ECU) Click here

Remote Operation Function (w/ Telematics System)
Symptom Suspected Area Link
Lights do not operate using remote operation function (Lighting system is normal) Telematics system Click here