LIGHTING SYSTEM PROBLEM SYMPTOMS TABLE

*1: w/ Entry and Start System
*2: w/o Entry and Start System
*3: w/ Interior Foot Light
*4: w/ Door Illumination

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.

Illuminated Entry System
Symptom	Suspected Area	See page
Illuminated entry system does not operate	DOME fuse	-
	Entry and start system (for entry function)*1	Click here
	Wireless door lock control system (w/o entry and start system)*2	Click here
	Door courtesy switch circuit	Click here
	Back door courtesy switch circuit	Click here
	Harness or connector	-
	Main body ECU (Multiplex network body ECU)	-

Interior Light System
Symptom	Suspected Area	See page
Map light does not illuminate	Map light bulb	-
	Map light assembly	Click here
	Harness or connector	-
No. 1 room light does not illuminate	No. 1 room light bulb	-
	No. 1 room light assembly	-
	Harness or connector	-
No. 2 room light does not illuminate	No. 2 room light bulb	-
	No. 2 room light assembly	-
	Harness or connector	-
Interior foot light does not illuminate*3	Active Test (Step Light Operation)	Click here
	Harness or connector	-
	Main body ECU (Multiplex network body ECU)	-
Door inside handle illumination light does not illuminate*4	Front door inside handle illumination light assembly	Click here
	Rear door inside handle illumination light assembly	Click here
	Harness or connector	-
Door pocket illumination does not illuminate*4	No. 2 interior illumination light sub-assembly (for front door)	Click here
	No. 2 interior illumination light sub-assembly (for rear door)	Click here
	Harness or connector	-
Ornament illumination does not illuminate*4	Door trim board sub-assembly	-
Ornament illumination does not illuminate*4	Harness or connector	-
Door illumination light does not illuminate*4	Main body ECU (Multiplex network body ECU)	-
Door illumination light does not illuminate*4	Harness or connector	-
Door courtesy light does not illuminate	Door courtesy light bulb	-
	Door courtesy switch circuit	Click here
	Back door courtesy switch circuit	Click here
	Harness or connector	-
	Main body ECU (Multiplex network body ECU)	-

Ignition Key Cylinder Light System (w/o Entry and Start System)
Symptom	Suspected Area	See page
Ignition key cylinder light does not illuminate	Transponder key amplifier	Click here
	Harness or connector	-
	Main body ECU (Multiplex network body ECU)	-

Side Step Light System (w/ Side Step Light)
Symptom	Suspected Area	See page
Side step light does not illuminate	Side step light bulb	-
	Harness or connector	-
	Main body ECU (Multiplex network body ECU)	-

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

Glove Box Light System
Symptom	Suspected Area	See page
Glove box light does not illuminate	Harness or connector	-

Interior Light Switch System (w/ Door Illumination)
Symptom	Suspected Area	See page
Interior light switch does not operate	Interior light switch signal circuit	Click here

Battery Saving Control System
Symptom	Suspected Area	See page
Battery saving function does not operate	Door courtesy switch circuit	Click here
	Back door courtesy switch circuit	Click here
	IG signal circuit	Click here
	Main body ECU (Multiplex network body ECU)	-

Center Console Spot Light System
Symptom	Suspected Area	See page
Center console spot light does not illuminate	Overhead console illumination light circuit	Click here
	IG signal circuit	Click here
	ACC signal circuit	Click here
	Main body ECU (Multiplex network body ECU)	-