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 > Seat Heater System: Terminals Of Ecu
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the J43 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. ...
Lexus RX (RX 350L, RX450h) 2016-2026 Owners Manual > Opening, closing the windows and moon roof: Moon roof
Use the overhead switches to open and close the moon roof and tilt it
up and
down.
Opening and closing
Opens the moon roof*
The moon roof stops slightly before the
fully open position to reduce wind noise.
Press the switch again to fully open the
moon roof.
Closes the moon roof*
...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Instrument cluster
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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