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 ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 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) 2016-2025 Repair Manual > Can Communication System: Lost Communication with "Seat Control Module A" (U0208)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note U0208 Lost Communication with "Seat Control Module A" No communication from the position control ECU and switch assembly LH continues.
Position control ECU and switch assembly LH branch line or conne ...
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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