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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Illuminated Entry System
Symptom	Suspected Area	See page
Only personal light LH does not illuminate.	Bulb	-
Only personal light LH does not illuminate.	Harness or connector	-
Only personal light RH does not illuminate.	Bulb	-
Only personal light RH does not illuminate.	Harness or connector	-
Only center room light LH does not illuminate.	Bulb	-
Only center room light LH does not illuminate.	Harness or connector	-
Only center room light RH does not illuminate.	Bulb	-
Only center room light RH does not illuminate.	Harness or connector	-
Interior lights (personal light LH, personal light RH, center room light LH and center room light RH) controlled by illuminated entry system do not operate normally.	Door courtesy switch circuit	Click here
	Door lock position switch circuit	Click here
	IG signal circuit	Click here
	ACC signal circuit	Click here
	Interior light circuit	Click here
	Main body ECU	Click here
Engine switch illumination controlled by illuminated entry system does not operate normally. (Interior lights operate normally.)	Engine switch illumination circuit	Click here
	Main body ECU	Click here
Only one footwell light does not illuminate.	Footwell light	Click here
Only one footwell light does not illuminate.	Harness or connector	-
Footwell lights controlled by illuminated entry system do not operate normally. (Interior lights operate normally.)	Footwell light circuit	Click here
	Main body ECU	Click here
Only one ceiling light does not illuminate.	Ceiling light	Click here
Only one ceiling light does not illuminate.	Harness or connector	-
Ceiling lights controlled by illuminated entry system do not operate normally. (Interior lights operate normally.)	Illumination circuit	Click here
	Main body ECU	Click here
Battery saving function does not operate.	Door courtesy switch circuit	Click here
	IG signal circuit	Click here
	Main body ECU	Click here

Vanity Light
Symptom	Suspected Area	See page
Vanity light does not illuminate.	Bulb	-
	Visor assembly	-
	Harness or connector	-

Glove Box Light
Symptom	Suspected Area	See page
Glove box light does not illuminate.	Glove box light assembly	Click here
Glove box light does not illuminate.	Harness or connector	-

Door Courtesy Light
Symptom	Suspected Area	See page
Door courtesy light does not illuminate.	Door courtesy light	Click here
	Front door courtesy switch	Click here
	Harness or connector	-

Rear Room Light
Symptom	Suspected Area	See page
Rear room light does not illuminate.	Bulb	-
Rear room light does not illuminate.	Harness or connector	-

Rear Console Box Light
Symptom	Suspected Area	See page
Rear console box light does not illuminate.	Rear console box light (No. 1 interior illumination light assembly)	Click here
Rear console box light does not illuminate.	Harness or connector	-

Luggage Compartment Light (w/o Power Back Door)
Symptom	Suspected Area	See page
Luggage compartment light does not illuminate.	Bulb	-
	Luggage compartment light assembly	Click here
	Back door courtesy switch	Click here
	Harness or connector	-

Luggage Compartment Light (w/ Power Back Door)
Symptom	Suspected Area	See page
Luggage compartment light does not illuminate. (Power back door system operates normally.)	Bulb	-
	Luggage compartment light circuit	Click here
	Back door motor unit (power back door ECU)	Click here

Reading Light (Spot Light Assembly)
Symptom	Suspected Area	See page
Reading light LH (spot light assembly LH) does not illuminate.	Climate control seat system	Click here
	Reading light LH (spot light assembly LH)	Click here
	Rear power seat switch LH	Click here
	Harness or connector	-
	Rear seat climate control ECU LH	Click here
Light level of the reading light LH (spot light assembly LH) cannot be adjusted.	Rear power seat switch LH	Click here
	Harness or connector	-
	Rear seat climate control ECU LH	Click here
Automatic turn off function of the reading light LH (spot light assembly LH) does not operate.	Climate control seat system	Click here
	Harness or connector	-
	Rear seat climate control ECU LH	Click here
Reading light RH (spot light assembly RH) does not illuminate.	Climate control seat system	Click here
	Reading light RH (spot light assembly RH)	Click here
	Rear power seat switch RH	Click here
	Harness or connector	-
	Rear seat climate control ECU RH	Click here
Light level of the reading light RH (spot light assembly RH) cannot be adjusted.	Rear power seat switch RH	Click here
	Harness or connector	-
	Rear seat climate control ECU RH	Click here
Automatic turn off function of the reading light RH (spot light assembly RH) does not operate.	Climate control seat system	Click here
	Harness or connector	-
	Rear seat climate control ECU RH	Click here