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 > Air Conditioning System: Evaporator Temperature Sensor Circuit (B1413/13)
DESCRIPTION The No. 1 cooler thermistor is installed to the evaporator in the air conditioner unit to detect the temperature of the cooled air that has passed through the evaporator, which is used to control the air conditioning system. It sends signals to the air conditioning amplifier assembly. Th ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Rear Combination Light Assembly (w/ Rear No. 2 Seat): Inspection
INSPECTION PROCEDURE 1. INSPECT REAR COMBINATION LIGHT ASSEMBLY LH (a) Apply battery voltage to the rear combination light assembly LH and check that the lights come on. OK: Condition Specified Condition Battery positive (+) → Terminal 1 (B) Battery negative (-) → Terminal 3 (E) T ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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