Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Smart access system with push-button start (for Entry Function) data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart access system with push-button start. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference.
When the electrical key transmitter sub-assembly ...
Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC NOTICE: When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vacuum Switching Valve (for Engine Mounting): Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 2 VACUUM SWITCHING VALVE ASSEMBLY (a) Install the No. 2 vacuum switching valve assembly to the front engine mounting bracket with the bolt. Torque: 20 N·m {204 kgf·cm, 15 ft·lbf} (b) Connect the No. 2 vacuum switching valve assembly connector. (c) Connect th ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Smart Access System With Push-button Start (for Entry Function): System Diagram
SYSTEM DIAGRAM
This is a detailed diagram related to the certification ECU (smart key ECU assembly).
This is a detailed diagram related to the main body ECU (multiplex network body ECU). Component Function Front door outside handle assembly Receives request signals from ...
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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