Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
If the battery voltage is low, the mirror heater function may not operate. When "Operation of Electrical Items Restricted." is displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".
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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 | 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" | |
| Wireless transmitter memory function does not operate (Registration operation that uses wireless or smart key is not functioning) | Operation check - memory and reactivation function | |
| Front power seat control system | | |
| 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 uses wireless or smart key is not functioning) | Operation check - memory and reactivation function | |
| Front power seat control system | | |
| Outer mirror control ECU assembly (driver door) | - | |
| Outer mirror control ECU assembly (front passenger door) | - | |
| Automatic glare-resistant EC mirror does not operate | Inner rear view mirror assembly | |
| Outer rear view mirror assembly (driver door) | - | |
| Outer rear view mirror assembly (front passenger door) | - | |
| Wire harness or connector | - |
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE POWER MIRROR CONTROL SYSTEM (w/ Memory) HINT: The following items can be customized. NOTICE:
When the customer requests a change in a function, first make sure that t ...
Terminals Of Ecu
TERMINALS OF ECU CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR) (a) Disconnect the N4 outer mirror control ECU assembly (driver door) connector. (b) Measure the voltage and resistance accordin ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Pre-collision System: Utility
UTILITY NOTICE: If any of the following parts have been replaced, perform beam/optical axis learning. Otherwise all systems that use the parts may be affected.
Forward Recognition Camera: HINT: Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequenti ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lane Control System: Terminals Of Ecu
TERMINALS OF ECU CHECK FORWARD RECOGNITION CAMERA NOTICE:
DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed.
Do not apply excessive force to the forward recognition camera conn ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Vehicle specifications
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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