Note
If the auxiliary battery voltage is low, the mirror heater function may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation" is displayed on the multi-information display in the combination meter assembly, inspect the auxiliary battery, referring to On-vehicle Inspection for the charging system.
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
Tech Tips
If the auxiliary battery voltage is low, the mirror heater function may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation" is displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".
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 | Link |
|---|---|---|
| Driver side power mirror cannot be adjusted with power mirror switch | Proceed to "Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch" | |
| Front passenger side power mirror cannot be adjusted with power mirror switch | Proceed to "Front Passenger Side Power Mirror cannot be Adjusted with Power Mirror Switch" | |
| Power mirror cannot be adjusted with power mirror switch | Proceed to "Power Mirror cannot be Adjusted with Power Mirror Switch" | |
| Mirror heater does not operate with rear defogger switch | Proceed to "Mirror Heater does not Operate with Rear Defogger Switch" | |
| Power mirror surface position is not memorized (Registration operation that does not use wireless or smart key is not functioning) | Proceed to "Power Mirror Surface Position is not Memorized" | |
| Power retract mirrors do not operate with power retract mirror switch | Proceed to "Power Retract Mirrors do not Operate with Power Retract Mirror Switch" | |
| AUTO power retract mirrors do not operate | Proceed to "AUTO Power Retract Mirrors do not operate" | |
| Power mirrors do not return to memorized position (Recall operation that does not use wireless or smart key is not functioning) | Proceed to "Power Mirrors do not Return to Memorized Position" | |
| Reverse shift-linked function of power mirrors does not operate | Proceed to "Reverse Shift-linked Function of Power Mirrors does not Operate" | |
| Power mirror surface is not memorized position with shift-linked function | Front multiplex network door ECU LH | |
| Front multiplex network door ECU RH | ||
| Wireless transmitter memory function does not operate (Registration operation that uses wireless or smart key is not functioning) | Entry and start system (for Entry Function) | |
| Wireless door lock control system | ||
| Power door lock control system | ||
| Front power seat control system | ||
| Main body ECU (multiplex network body ECU) | ||
| Wireless-linked return function does not operate (Recall operation that uses wireless or smart key is not functioning) | Entry and start system (for Entry Function) | |
| Wireless door lock control system | ||
| Power door lock control system | ||
| Front power seat control system | ||
| Main body ECU (multiplex network body ECU) | ||
| Automatic glare-resistant EC mirror does not operate | Inner rear view mirror assembly | |
| Outer mirror actuator assembly LH | ||
| Outer mirror actuator assembly RH | ||
| Outer mirror LH | ||
| Outer mirror RH | ||
| Front multiplex network door ECU LH | ||
| Front multiplex network door ECU RH | ||
| Harness or connector | - |