Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Problem Symptoms Table
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.
-
When a symptom indicates that a service is malfunctioning, use the Techstream to check whether the service subscription is active.
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| Symptom | Suspected Area | Link |
|---|---|---|
| Vehicle status cannot be checked using the application. | Proceed to "Remote Service Malfunction" | |
| Vehicle status alerts are not received by the application even if remote notification operation conditions are met. | Proceed to "Remote Service Malfunction" | |
| Vehicle cannot be operated remotely using the application. | Perform remote door lock and unlock registration and check if the problem symptom recurs | |
| Proceed to "Remote Service Malfunction" | |
| Symptom | Suspected Area | Link |
|---|---|---|
| Engine does not start by remote engine start function. | Proceed to "Remote Engine Starter does not Operate" | |
| Engine does not stop by remote engine stop function. | Proceed to "Remote Engine Starter does not Operate" | |
| Symptom | Suspected Area | Link |
|---|---|---|
| The multi-display screen does not show a warning message even though a warning light turns on or the multi-information display indicates a warning. | Proceed to "Warning Notification Function Malfunction" | |
| The multi-display screen shows a warning message even though no warning lights are on and the multi-information display does not indicate a warning. | Proceed to "Warning Notification Function Malfunction" | |
| The multi-display screen shows a warning message different from the warning light or the multi-information display. | Proceed to "Warning Notification Function Malfunction" | |
Utility
UTILITY CANCEL COMMUNICATION FUNCTION PAUSING HINT: This function is used to cancel communication function pausing mode. (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) ...
Terminals Of Ecu
TERMINALS OF ECU HINT: Check from the rear of the connector while it is connected to the components. DCM (TELEMATICS TRANSCEIVER) Terminal No. (Symbol) Wiring Color Terminal Description Cond ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Smart Access System With Push-button Start (for Start Function): System Diagram
SYSTEM DIAGRAM Component Outline Engine switch
Transponder key amplifier
Turns on the power and starts the engine.
Contains a built-in transponder key amplifier to start the engine when the electrical key transmitter sub-assembly does not operate properly due to a depleted ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Brake Master Cylinder: Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly. PROCEDURE 1. DRAIN BRAKE FLUID NOTICE: If brake fluid leaks onto any painted surface, immediately wash it off. 2 ...
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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