LIGHTING SYSTEM PROBLEM SYMPTOMS TABLE

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.

Headlight (w/ Daytime Running Light System or w/ Automatic Light Control System)
Symptom	Suspected Area	See page
One side LO-beam headlight does not illuminate	H-LP LH LO or H-LP RH LO fuse	-
	Bulb	Click here
	Harness or connector	-
Both left and right LO-beam headlights do not illuminate	H-LP LO fuse	-
	Headlight signal circuit	Click here
	Light control switch circuit	Click here
	Main body ECU	Click here
One side HI-beam headlight does not illuminate	Headlight assembly	Click here
One side HI-beam headlight does not illuminate	Harness or connector	-
Both left and right HI-beam headlights do not illuminate	H-LP HI fuse	-
	Headlight signal circuit	Click here
	Light control switch circuit	Click here
	Main body ECU	Click here
"High Flash" headlight does not illuminate (Passing function)	Light control switch circuit	Click here
	Main body ECU	Click here
LO-beam headlights or HI-beam headlights do not go off	Headlight dimmer switch	Click here
	Harness or connector	-
	Main body ECU	Click here

Headlight (w/o Daytime Running Light System and w/o Automatic Light Control System)
Symptom	Suspected Area	See page
One side LO-beam headlight does not illuminate	H-LP RH or H-LP LH fuse	-
	Bulb	Click here
	Harness or connector	-
Both left and right LO-beam headlights do not illuminate	Headlight dimmer switch	Click here
Both left and right LO-beam headlights do not illuminate	Harness or connector	-
One side HI-beam headlight does not illuminate	H-LP RH or H-LP LH fuse	-
	Headlight assembly	Click here
	Harness or connector	-
Both left and right HI-beam headlights do not illuminate	Headlight dimmer switch	Click here
Both left and right HI-beam headlights do not illuminate	Harness or connector	-
"High Flash" headlight does not illuminate (Passing function)	Headlight dimmer switch	Click here
LO-beam headlights or HI-beam headlights do not go off	Headlight dimmer switch	Click here
LO-beam headlights or HI-beam headlights do not go off	Harness or connector	-

Taillight (w/ Daytime Running Light System or w/ Automatic Light Control System)
Symptom	Suspected Area	See page
Clearance light does not illuminate	Bulb	Click here
Clearance light does not illuminate	Harness or connector	-
Rear taillight does not illuminate	Bulb	Click here
Rear taillight does not illuminate	Harness or connector	-
License plate light does not illuminate	Bulb	Click here
License plate light does not illuminate	Harness or connector	-
All of lights do not illuminate	TAIL fuse	-
	Taillight circuit	Click here
	Light control switch circuit	Click here
	Main body ECU	Click here

Taillight (w/o Daytime Running Light System and w/o Automatic Light Control System)
Symptom	Suspected Area	See page
Clearance light does not illuminate	Bulb	Click here
Clearance light does not illuminate	Harness or connector	-
Rear taillight does not illuminate	Bulb	Click here
Rear taillight does not illuminate	Harness or connector	-
License plate light does not illuminate	Bulb	Click here
License plate light does not illuminate	Harness or connector	-
All of lights do not illuminate	TAIL NO. 1 fuse	-
	Headlight dimmer switch	Click here
	Harness or connector	-

Stop Ligh
Symptom	Suspected Area	See page
One side stop light does not illuminate	Bulb	Click here
One side stop light does not illuminate	Harness or connector	-
High mounted stop light does not illuminate	High mounted stop light assembly	Click here
High mounted stop light does not illuminate	Harness or connector	-
All of lights do not operate	STOP fuse	-
	Stop light switch	Click here
	Harness or connector	-

Front Fog Light (w/ Daytime Running Light System or w/ Automatic Light Control System)
Symptom	Suspected Area	See page
One side fog light does not illuminate.	Front fog light assembly	Click here
One side fog light does not illuminate.	Harness or connector	-
Both left and right fog lights do not illuminate (Taillight is normal)	FOG FR fuse	-
	Front fog light circuit	Click here
	Light control switch circuit	Click here
	Main body ECU	Click here

Front Fog Light (w/o Daytime Running Light System and w/o Automatic Light Control System)
Symptom	Suspected Area	See page
One side fog light does not illuminate.	Front fog light assembly	Click here
One side fog light does not illuminate.	Harness or connector	-
Both left and right fog lights do not illuminate (Taillight is normal)	FOG FR fuse	-
	FR FOG relay	Click here
	Headlight dimmer switch	Click here
	Harness or connector	-

Rear fog light (w/ Daytime Running Light System or w/ Automatic Light Control System)
Symptom	Suspected Area	See page
Rear fog light does not illuminate. (Taillight is normal)	Bulb	Click here
	FOG RR fuse	-
	Rear fog light circuit	Click here
	Light control switch circuit	Click here
	Main body ECU	Click here

Rear fog light (w/o Daytime Running Light System and w/o Automatic Light Control System)
Symptom	Suspected Area	See page
Rear fog light does not illuminate. (Taillight is normal)	Bulb	Click here
	FOG RR fuse	-
	RR ROG relay	Click here
	Headlight dimmer switch	Click here
	Harness or connector	-

Turn Signal and Hazard Warning Light
Symptom	Suspected Area	See page
Hazard warning lights do not operate (Turn signal light are normal)	TURN&HAZ fuse	-
	Instrument cluster finish panel assembly (for automatic air conditioning system)	Click here
	Hazard warning switch (except automatic air conditioning system)	Click here
	Turn signal flasher assembly	Click here
	Harness or connector	-
Turn signal lights do not operate (Hazard warning lights are normal)	GAUGE fuse	-
	Headlight dimmer switch assembly	Click here
	Turn signal flasher assembly	Click here
	Harness or connector	-
Hazard warning lights and turn signal lights do not operate	TURN&HAZ, GAUGE fuse	-
	Turn signal flasher assembly	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	-
Only one bulb does not operate	Bulb	-
Only one bulb does not operate	Harness or connector	-

Back-up Light
Symptom	Suspected Area	See page
Back-up light does not illuminate	Bulb	Click here
	GAUGE fuse	-
	Back-up light switch (for EE53 manual transaxle)	Click here
	Back-up light switch (for EE63 manual transaxle)	Click here
	Back-up light switch (for EE65 manual transaxle)	Click here
	Harness or connector	-

Daytime Running Light System
Symptom	Suspected Area	See page
Daytime running light system does not operate (Headlight and taillight are normal)	Light control switch circuit	Click here
	IG signal circuit	Click here
	Headlight signal circuit	Click here
	Taillight circuit	Click here
	CAN communication system	Click here
	ECM (for 1KR-FE)	Click here
	ECM (for 1NR-FE)	Click here
	ECM (for 1ND-TV)	Click here
	Main Body ECU	Click here

Automatic Light Control System
Symptom	Suspected Area	See page
Automatic light control system does not operate normally	Check DTC	Click here
	Light control switch circuit	Click here
	IG signal circuit	Click here
	Main body ECU	Click here

Light Auto Turn Off System
Symptom	Suspected Area	See page
Light auto turn off system does not operate normally	Light control switch circuit	Click here
	Door courtesy switch circuit	Click here
	IG signal circuit	Click here
	Main body ECU	Click here

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