Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Door Lock / Wireless Door Lock Control System(w/ Smart Key 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Wireless Door Lock Control System

Symptom	Suspected Area	See page
Wireless control function and entry function do not operate	Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate"
Wireless control function does not operate but entry function operates	Replace electrical key transmitter	-
Only answer-back function does not operate normally	Proceed to "No-answer back"
Only automatic lock function does not operate normally	Perform operation check
	Lighting system (door courtesy light switch circuit)
	Main body ECU (driver side junction block assembly)	-
Only illuminated entry function does not operate	Perform operation check
	Lighting system
	Main body ECU (driver side junction block assembly)	-
Only door ajar warning function does not operate	Perform operation check
	Lighting system (door courtesy light switch circuit)
	Main body ECU (driver side junction block assembly)	-
Only panic alarm function does not operate (w/ theft deterrent system)	Perform operation check
	Lighting system (int) (interior lights)
	Lighting system (ext) (headlights, taillights, hazard lights)
	Theft deterrent system (vehicle horn, security horn)
	Main body ECU (driver side junction block assembly)	-
Only panic alarm function does not operate (w/o theft deterrent system)	Perform operation check
	Lighting system (int) (interior lights)
	Lighting system (ext) (headlights, taillights, hazard lights)
	Horn system
	Wire harness or connector (vehicle horn - main body ECU)	-
	Main body ECU (driver side junction block assembly)	-

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CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH THE TECHSTREAM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure th ...

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

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