Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. 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 fuse and relay related to this system before inspecting the suspected areas below.

Headlight and taillight system:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
"LO-beam" headlight does not illuminate	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Headlight relay circuit	HEADLIGHT RELAY CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
"HI-beam" headlight does not illuminate	Headlight (HI-BEAM) circuit	HEADLIGHT (HI-BEAM) CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
"Flash" headlight does not illuminate	Headlight (HI-BEAM) circuit	HEADLIGHT (HI-BEAM) CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
Headlight is dark	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
Headlight does not illuminate or has abnormal operation	Headlight relay circuit	HEADLIGHT RELAY CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
Taillight does not illuminate or has abnormal operation	Taillight circuit	TAILLIGHT CIRCUIT
Taillight does not illuminate or has abnormal operation	Multiplex network rear ECU (Luggage room junction block ECU)	-
Both left and right headlight do not illuminate	Headlight (HI-BEAM) circuit	HEADLIGHT (HI-BEAM) CIRCUIT
	Headlight relay circuit	HEADLIGHT RELAY CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Engine room No. 2 relay block (Front controller)	-
	Combination switch assembly (Windshield wiper assembly)	-
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
Headlight beam level control system does not operate	Headlight beam level control actuator circuit	HEADLIGHT BEAM LEVEL CONTROL ACTUATOR CIRCUIT
	Height control sensor circuit	HEIGHT CONTROL SENSOR CIRCUIT
	Headlight beam level control ECU communication circuit	HEADLIGHT BEAM LEVEL CONTROL ECU COMMUNICATION CIRCUIT
	Headlight beam level control ECU power source circuit	HEADLIGHT LEVELING ECU POWER SOURCE CIRCUIT
	Headlight beam level control ECU	-
	Cowl side Junction block ECU LH	-
	Skid control ECU with actuator	-

Stop light system:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
Stop light system does not illuminate	Stop light circuit	STOP LIGHT CIRCUIT
Stop light system does not illuminate	Multiplex network rear ECU (Luggage room junction block ECU)	-
Hi-mounted stop light does not illuminate	Stop light circuit	STOP LIGHT CIRCUIT
Hi-mounted stop light does not illuminate	Multiplex network rear ECU (Luggage room junction block ECU)	-

Fog light system:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
Fog light does not illuminate or has abnormal operation	Front fog light circuit	FRONT FOG LIGHT CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Headlight signal circuit	HEADLIGHT SIGNAL CIRCUIT
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
	Multiplex network body ECU (Cowl side junction block ECU RH)	-

Turn signal light system:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
Hazard warning light does not illuminate	Hazard warning switch circuit	HAZARD WARNING SWITCH CIRCUIT
	Turn signal flasher	-
	Multi-display (Hazard warning switch)	-
Turn signal light does not illuminate	Turn signal light circuit	TURN SIGNAL LIGHT CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
	Cowl side Junction block ECU LH	-

Interior light system:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
Door courtesy light does not illuminate	Door courtesy switch circuit	DOOR COURTESY SWITCH CIRCUIT
	Door courtesy light circuit	DOOR COURTESY LIGHT CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
	Multiplex network door ECU front LH (Driver side door ECU)	-
	Multiplex network door ECU front RH (Front passenger side door ECU)	-
	Multiplex network door ECU rear LH (Rear door LH)	-
	Multiplex network door ECU rear RH (Rear door RH)	-
Luggage room light does not illuminate	Luggage room light circuit	LUGGAGE ROOM LIGHT CIRCUIT
Luggage room light does not illuminate	Cowl side junction block ECU LH	-
Room light does not illuminate	Room light circuit	ROOM LIGHT CIRCUIT
	Map light assembly (Overhead junction block)	-
	Cowl side junction block ECU LH	-
Step illumination does not illuminate	Step illumination circuit	STEP ILLUMINATION CIRCUIT
	Door courtesy switch circuit	DOOR COURTESY SWITCH CIRCUIT
	Multiplex network body ECU (Cowl side junction block ECU RH)	-
Inside handle illumination light does not illuminate	Inside handle illumination light circuit	INSIDE HANDLE ILLUMINATION LIGHT CIRCUIT
	Door courtesy switch circuit	DOOR COURTESY SWITCH CIRCUIT
	Multiplex network door ECU front LH (Driver side door ECU)	-
	Multiplex network door ECU front RH (Front passenger side door ECU)	-
	Multiplex network door ECU rear LH (Rear door LH)	-
	Multiplex network door ECU rear RH (Rear door RH)	-

Others:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
Back-up light does not illuminate	Back-up light circuit	BACK-UP LIGHT CIRCUIT
Back-up light does not illuminate	Multiplex network rear ECU (Luggage room junction block ECU)	-
License plate light does not illuminate	Taillight circuit	TAILLIGHT CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-
	Multiplex network rear ECU (Luggage room junction block ECU)	-
Clearance light does not illuminate	Taillight circuit	TAILLIGHT CIRCUIT
	Light control switch circuit	LIGHT CONTROL SWITCH CIRCUIT
	Combination switch assembly (Windshield wiper assembly)	-
	Engine room No. 2 relay block (Front controller)	-

AFS

PROBLEM SYMPTOM CHART

Symptom	Suspected Area	See
AFS does not operate(*1)	AFS ECU power source circuit	AFS ECU POWER SOURCE CIRCUIT
AFS does not operate(*1)	AFS ECU	TERMINALS OF ECU
Only one swivel motor is not initialized(*1)	Headlight assembly or swivel motor stuck(*2)	-
	Headlight swivel motor malfunction	-
	AFS ECU	TERMINALS OF ECU
Only swivel control does not operate or malfunctions	AFS ECU switch status(*3)	-
	Steering control ECU	-
	Vehicle speed sensor malfunction	-
	BEAN communication malfunction	-
	Headlight swivel motor malfunction	-
	AFS ECU	TERMINALS OF ECU
Swivel control and leveling control do not operate	Height control sensor malfunction	-
	Headlight swivel motor malfunction	-
	AFS ECU	TERMINALS OF ECU
AFS OFF indicator light does not come on	AFS OFF switch circuit	AFS OFF SWITCH CIRCUIT
	BEAN communication malfunction	-
	Combination meter assembly	-
	AFS ECU	TERMINALS OF ECU
HINT: 1: When the AFS indicator light does not turn on or blink despite the symptom being indicated, check the battery voltage. 2: Check if the headlight swivel motor turns smoothly by hand. If the motor does not turn, replace it with a new one. If the motor still does not turn, replace the headlight with a new one. *3: Before the inspection, check that the AFS OFF switch is not pushed.