Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Door Lock / Wireless Door Lock Control System(w/o 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
Only wireless control function is inoperative	Proceed to "Only wireless control function is inoperative"
Only answer-back function does not operate normally	Proceed to "No answer-back"
Only automatic lock function does not operate normally	Perform the operation check
	Key reminder warning system (unlock warning switch circuit)
	Lighting system (door courtesy light switch circuit)
	Main body ECU (driver side junction block assembly)	-
Only illuminated entry function does not operate	Perform the operation check
	Lighting system
	Main body ECU (driver side junction block assembly)	-
Only door ajar warning function does not operate	Perform the 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)	-

Registration

REGISTRATION CAUTION / NOTICE / HINT HINT: Register a new recognition code when replacing the door control transmitter or the door control receiver. Add mode is used to retain the a ...

Diagnosis System

DIAGNOSIS SYSTEM 1. DESCRIPTION The ECU stores trouble codes when malfunctions occur. The diagnostic system allows for reading of the trouble codes from the DLC3 using the Techstream. Use the Te ...

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