Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
- If the problem only occurs in certain locations or at certain times of day, check for wave interference.
- If the optional components are installed, check for wave interference from the components.
| Symptom | Suspected Area | Link |
|---|---|---|
| Security indicator light does not blink | Proceed to "Security Indicator Light Does not Blink" | |
| Immobiliser system does not operate properly | Proceed to "Immobiliser System does not Operate Properly" | |
| Engine cannot be started*1 | Certification ECU (Smart key ECU assembly) | |
| ECM | - | |
| SFI system | - | |
| Power source mode cannot be changed*1 | Engine switch | |
| Certification ECU (Smart key ECU assembly) | - | |
| Steering lock lock/unlock not possible*2 | Steering lock ECU (Steering lock actuator or upper bracket assembly) | |
| Engine cannot be started by lexus enform remote (Engine can be started by push-button start function)*3 | Proceed to "Remote Engine Starter does not Operate" | |
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- *1: Refer to Problem Symptoms Table for Smart Access System with Push-button Start (for Start Function).
- *2: Refer to Problem Symptoms Table for Steering Lock System.
- *3: w/ Lexus Enform Remote
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use this procedure to troubleshoot the immobiliser system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. ...
Registration
REGISTRATION PROCEDURE 1. CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES CAUTION:
People with implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or implantable car ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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