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.
Symptom | Suspected Area | See page |
|---|---|---|
Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch |
CAN communication system |
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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
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.