Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Lighting (int) / Lighting System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

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
Only roof console box assembly does not illuminate.	Bulb	-
Only roof console box assembly does not illuminate.	Harness or connector	-
Only step or spot light assembly does not illuminate.	Bulb	-
Only step or spot light assembly does not illuminate.	Harness or connector	-
Only transponder key amplifier does not illuminate. (w/o Smart Key System)	Transponder key amplifier
	Harness or connector	-
Only engine switch illumination does not illuminate. (w/ Smart Key System)	Engine switch illumination circuit
	Certification ECU (Smart key ECU assembly)
Illuminated entry system does not operate normally.	DOME fuse	-
	Door courtesy switch circuit
	Door unlock detection switch circuit
	IG signal circuit
	ACC signal circuit
	Interior light circuit
	Engine switch illumination circuit
	Main body ECU (Driver side junction block assembly)

Vanity Light

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

Glove Box Light

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

Front Door Courtesy Light

Symptom	Suspected Area	See page
Front door courtesy light does not illuminate.	Bulb	-
	Courtesy light assembly
	Front door courtesy light switch
	Harness or connector	-

Battery Saving Control

Symptom	Suspected Area	See page
Battery saving function does not operate.	Door courtesy light switch circuit
	Door unlock detection switch circuit
	IG signal circuit
	ACC signal circuit
	Interior light auto cut circuit
	Main body ECU (Driver side junction block assembly)

Interior Light Power Source Control

Symptom	Suspected Area	See page
All the interior lights that receive power via the dome cut relay do not illuminate. (The DOME fuse is normal.)	Interior light power source circuit
	Main body ECU (Driver side junction block assembly)
All the interior lights that receive power via the dome cut relay do not illuminate. (Although the DOME fuse is replaced, the fuse breaks again.)	Roof console box assembly
	Courtesy light assembly
	No. 2 room light assembly
	Harness or connector (Including all light components that are part of the wire harness)	-

Luggage Compartment Light

Symptom	Suspected Area	See page
Luggage compartment light does not illuminate.	Bulb	-
	No. 2 room light assembly
	Back door courtesy switch
	Harness or connector	-

Operation Check

OPERATION CHECK 1. INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customize parameters at the initial setting. HINT: The interior light control illuminates th ...

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TERMINALS OF ECU 1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) (a) Disconnect the 2A and 2F main body ECU (driver side junction block assembly) connectors. (b) Measure the voltag ...

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