LIGHTING SYSTEM(for Halogen Headlight) PROBLEM SYMPTOMS TABLE

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.

Click here
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.
w/ Entry and Start System:

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.

Headlight
Symptom	Suspected Area	Link
Left low beam headlight does not illuminate.	H-LP LH-LO fuse	-
	No. 1 headlight bulb	Click here
	Headlight cord	Click here
	Harness or connector	-
Right low beam headlight does not illuminate.	H-LP RH-LO fuse	-
	No. 1 headlight bulb	Click here
	Headlight cord	Click here
	Harness or connector	-
Both left and right low beam headlight does not illuminate.	Headlight relay circuit	Click here
	Headlight dimmer switch circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here
Left high beam headlight does not illuminate.	H-LP LH fuse	-
	No. 2 headlight bulb	Click here
	Headlight cord	Click here
	Harness or connector	-
Right high beam headlight does not illuminate.	H-LP RH fuse	-
	No. 2 headlight bulb	Click here
	Headlight cord	Click here
	Harness or connector	-
Both left and right high beam headlight does not illuminate.	Headlight (HI-BEAM) circuit	Click here
	Headlight dimmer switch circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here
Left daytime running light does not illuminate. (w/ Daytime Running Light)	Headlight unit LH	Click here
	Headlight cord	Click here
	Harness or connector	-
Right daytime running light does not illuminate. (w/ Daytime Running Light)	Headlight unit RH	Click here
	Headlight cord	Click here
	Harness or connector	-
Both left and right daytime running light does not illuminate. (w/ Daytime Running Light)	DRL relay 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, Taillight, License Plate Light
Symptom	Suspected Area	Link
Left clearance light does not illuminate.	Clearance light bulb	Click here
	Clearance light bulb socket	Click here
	Harness or connector	-
Right clearance light does not illuminate.	Clearance light bulb	Click here
	Clearance light bulb socket	Click here
	Harness or connector	-
Left taillight (rear combination light assembly) do not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right taillight (rear combination light assembly) do not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
License plate light does not illuminate.	License plate light bulb (w/ Tire Carrier)	Click here
	License plate light bulb (w/o Tire Carrier)	Click here
	License plate light socket and wire (w/ Tire Carrier)	Click here
	License plate light socket and wire (w/o Tire Carrier)	Click here
	Luggage electrical key switch (w/ Entry and Start System)	Click here
	Harness or connector	-
All of the clearance lights, taillights and license plate lights do not illuminate.	Taillight relay circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here

Front Fog Light (w/ Front Fog Light)
Symptom	Suspected Area	Link
Left front fog light does not illuminate.	Fog light assembly LH	Click here
Left front fog light does not illuminate.	Harness or connector	-
Right front fog light does not illuminate.	Fog light assembly RH	Click here
Right front fog light does not illuminate.	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 (w/ Rear Fog Light)
Symptom	Suspected Area	Link
Left rear fog light does not illuminate.	Rear fog light bulb	Click here
	Rear fog light socket and wire LH	Click here
	Harness or connector	-
Right rear fog light does not illuminate.	Rear fog light bulb	Click here
	Rear fog light socket and wire RH	Click here
	Harness or connector	-
Both left and right rear fog lights do not illuminate.	Headlight dimmer switch circuit	Click here
	Rear fog light circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here

Back-up Light (except 5L-E)
Symptom	Suspected Area	Link
Left back-up light does not illuminate.	Back-up light bulb	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Right back-up light does not illuminate.	Back-up light bulb	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Both left and right back-up lights do not illuminate.	BKUP LP fuse	-
	Back -up light switch assembly (for R150F)	Click here
	Back -up light switch assembly (for RA61F)	Click here
	Park/neutral position switch assembly (for AC60F)	Click here
	Park/neutral position switch assembly (for A750F)	Click here
	Driver side junction block assembly (BKUP LP relay, IG NO.2 relay)	Click here
	Harness or connector	-

Back-up Light (for 5L-E)
Symptom	Suspected Area	Link
Left back-up light does not illuminate.	Back-up light bulb	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right back-up light does not illuminate.	Back-up light bulb	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Both left and right back-up lights do not illuminate.	BKUP LP fuse	-
	BKUP LP relay	-
	IG NO.2 relay	-
	Back -up light switch assembly (for G52F)	Click here
	Harness or connector	-

Stop Light, Center Stop Light (except 5L-E)
Symptom	Suspected Area	Link
Left stop light (rear combination light assembly) does not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right stop light (rear combination light assembly) does not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Center stop light does not illuminate.	Center stop light assembly	Click here
Center stop light does not illuminate.	Harness or connector	-
All stop light does not illuminate.	STOP fuse	-
	Stop light switch assembly	Click here
	Harness or connector	-

Stop Light, Center Stop Light (for 5L-E)
Symptom	Suspected Area	Link
Left stop light (rear combination light assembly) does not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right stop light (rear combination light assembly) does not illuminate.	Rear combination light LED	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Center stop light does not illuminate.	Center stop light assembly	Click here
Center stop light does not illuminate.	Harness or connector	-
All stop light does not illuminate.	STOP fuse	-
	Stop light switch assembly	Click here
	Stop light control relay assembly	-
	Harness or connector	-

Turn Signal Light (except 5L-E)
Symptom	Suspected Area	Link
Left front turn signal light does not illuminate.	Meter/gauge system	Click here
	Front turn signal light bulb	Click here
	Front turn signal light bulb socket	Click here
	Harness or connector	-
Right front turn signal light does not illuminate.	Meter/gauge system	Click here
	Front turn signal light bulb	Click here
	Front turn signal light bulb socket	Click here
	Harness or connector	-
Left side turn signal light does not illuminate.	Meter/gauge system	Click here
	Side turn signal light assembly LH	Click here
	Outer rear view mirror assembly LH	Click here
	Outer mirror control ECU assembly LH (w/ Reverse Shift-linked Mirror)	Click here
	Harness or connector	-
Right side turn signal light does not illuminate.	Meter/gauge system	Click here
	Side turn signal light assembly RH	Click here
	Outer rear view mirror assembly RH	Click here
	Outer mirror control ECU assembly RH (w/ Reverse Shift-linked Mirror)	Click here
	Harness or connector	-
Left rear turn signal light does not illuminate.	Meter/gauge system	Click here
	Rear turn signal light bulb	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right rear turn signal light does not illuminate.	Meter/gauge system	Click here
	Rear turn signal light bulb	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Turn signal light does not operate in one direction.	Meter/gauge system	Click here
	Turn signal switch circuit	Click here
	Combination meter assembly	Click here
All turn signal light does not illuminate.	Turn signal switch circuit	Click here
All turn signal light does not illuminate.	Combination meter assembly	Click here
All turn signal light does not flash at the correct speed.	Combination meter assembly	Click here

Turn Signal Light (for 5L-E)
Symptom	Suspected Area	Link
Left front turn signal light does not illuminate.	Front turn signal light bulb	Click here
	Front turn signal light bulb socket	Click here
	Harness or connector	-
Right front turn signal light does not illuminate.	Front turn signal light bulb	Click here
	Front turn signal light bulb socket	Click here
	Harness or connector	-
Left side turn signal light does not illuminate.	Side turn signal light assembly LH	Click here
	Outer mirror actuator assembly LH	Click here
	Harness or connector	-
Right side turn signal light does not illuminate.	Side turn signal light assembly RH	Click here
	Outer mirror actuator assembly RH	Click here
	Harness or connector	-
Left rear turn signal light does not illuminate.	Rear turn signal light bulb	Click here
	Rear combination light socket and wire sub-assembly LH	Click here
	Harness or connector	-
Right rear turn signal light does not illuminate.	Rear turn signal light bulb	Click here
	Rear combination light socket and wire sub-assembly RH	Click here
	Harness or connector	-
Turn signal lights do not operate in one direction.	Headlight dimmer switch assembly	Click here
	Turn signal flasher assembly	Click here
	Harness or connector	-

Hazard Warning Signal Light (except 5L-E)
Symptom	Suspected Area	Link
Hazard warning signal lights do not operate.	Hazard warning switch circuit	Click here
Hazard warning signal lights do not operate.	Combination meter assembly	Click here

Hazard Warning Signal Light (for 5L-E)
Symptom	Suspected Area	Link
Hazard warning signal lights do not operate.	Hazard warning switch assembly	Click here
	Turn signal flasher assembly	Click here
	Harness or connector	-

Light Auto Turn-off System (w/ Automatic Light Control System)
Symptom	Suspected Area	Link
Light auto turn-off system does not operate.	Headlight dimmer switch circuit	Click here
	IG signal circuit	Click here
	Door courtesy switch circuit	Click here
	Back door courtesy switch circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here

Manual Headlight Beam Level Control System (w/ Manual Headlight Beam Level Control System)
Symptom	Suspected Area	Link
Manual headlight leveling control system does not operate.	Headlight leveling switch	Click here
	Headlight leveling motor	Click here
	Harness or connector	-

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

Welcome Light Illumination Control (w/ Welcome Light Illumination Control)
Symptom	Suspected Area	Link
Welcome light illumination control does not operate.	Check customize parameters (Light up Clearance Lights at Door Unlock Function)	Click here
Welcome light illumination control does not operate.	Main body ECU (multiplex network body ECU)	Click here

Follow Me Home System (w/ Follow Me Home System)
Symptom	Suspected Area	Link
Follow me home system does not operate.	IG signal circuit	Click here
	Headlight dimmer switch circuit	Click here
	Main body ECU (multiplex network body ECU)	Click here

Automatic High Beam System (w/ Automatic High Beam System)
Symptom	Suspected Area	Link
Automatic high beam system does not operate or operation indicator does not illuminate.	Check automatic high beam indicator light	Click here
	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