Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Mirror (ext) / Power Mirror Control System(w/ Memory) / 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.

Power Mirror Control System

Symptom	Suspected Area	See page
Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch	CAN communication system
	Outer mirror switch assembly	-
	Main body ECU (driver side junction block assembly)	-
	Outer mirror control ECU assembly (driver door)	-
	Outer rear view mirror assembly (driver door)	-
	Wire harness or connector	-
Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch	CAN communication system
	Outer mirror switch assembly	-
	Main body ECU (driver side junction block assembly)	-
	Outer mirror control ECU assembly (front passenger door)	-
	Outer rear view mirror assembly (front passenger door)	-
	Wire harness or connector	-
Power Mirror cannot be Adjusted with Power Mirror Switch	CAN communication system
	Outer mirror switch assembly	-
	Main body ECU (driver side junction block assembly)	-
	Wire harness or connector	-
Mirror Heater does not Operate with Rear Defogger Switch	Windshield deicer system
	MIR HTR fuse	-
	DEICER relay	-
	Outer rear view mirror assembly (driver door)
	Outer rear view mirror assembly (front passenger door)
	Outer mirror RH
	Outer mirror LH
	Wire harness or connector	-
Power Retract Mirrors do not Operate with Power Retract Mirror Switch*1	Outer mirror switch assembly
	Outer rear view mirror assembly (driver door)
	Outer rear view mirror assembly (front passenger door)
	Wire harness or connector	-
Power Mirror Surface Position is not Memorized (Registration operation that does not use wireless or smart key is not functioning)	CAN communication system
	Main body ECU (driver side junction block assembly)	-
	Seat memory switch	-
	Outer rear view mirror assembly (driver door)	-
	Outer rear view mirror assembly (front passenger door)	-
	Outer mirror control ECU assembly (driver door)	-
	Outer mirror control ECU assembly (front passenger door)	-
	Wire harness or connector	-
Power Mirrors do not Return to Memorized Position (Recall operation that does not use wireless or smart key is not functioning)	CAN communication system
	Seat memory switch	-
	Main body ECU (driver side junction block assembly)	-
	Outer rear view mirror assembly (driver door)	-
	Outer rear view mirror assembly (front passenger door)	-
	Outer mirror control ECU assembly (driver door)	-
	Outer mirror control ECU assembly (front passenger door)	-
Reverse Shift-linked Function of Power Mirrors does not Operate	CAN communication system
	SFI system	-
	Outer mirror switch assembly	-
	Outer mirror control ECU assembly (driver door)	-
	Outer mirror control ECU assembly (front passenger door)	-
	Outer rear view mirror assembly (driver door)	-
	Outer rear view mirror assembly (front passenger door)	-
	Main body ECU (driver side junction block assembly)	-
	Park/neutral position switch assembly	-
Wireless Transmitter Memory Function does not Operate (Registration operation that does not use wireless or smart key is not functioning)	Wireless door lock control system
	Smart key system*2	-
	Main body ECU (driver side junction block assembly)	-
	Outer rear view mirror assembly (driver door)	-
	Outer rear view mirror assembly (front passenger door)	-
	Outer mirror control ECU assembly (driver door)	-
	Outer mirror control ECU assembly (front passenger door)	-
Wireless-linked Return Function does not Operate (Recall operation that does not use wireless or smart key is not functioning)	Wireless door lock control system
	Smart key system*2	-
	Main body ECU (driver side junction block assembly)	-
	Outer mirror control ECU assembly (driver door)	-
	Outer mirror control ECU assembly (front passenger door)	-
	Outer rear view mirror assembly (driver door)	-
	Outer rear view mirror assembly (front passenger door)	-

*1: w/ Retract Mirror
*2: w/ Smart Key System

Operation Check

OPERATION CHECK 1. CHECK REMOTE CONTROL MIRROR FUNCTION (a) Turn the ignition switch ON. (b) With the mirror select switch set to L, check that the outer rear view mirror LH surface moves up, dow ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR) (a) Disconnect the I13 connector. (b) Measure the voltage and resistance according to the value(s) in the table below. ...

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