Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Operation History List
OPERATION HISTORY LIST
NOTICE:
- The cause of a malfunction is stored in the RAM or EEPROM in the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be cleared when the cable is disconnected from the negative (-) battery terminal, do not disconnect the cable from the negative (-) battery terminal before checking and recording the operation history.
- 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 or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
OPERATION HISTORY
HINT:
The certification ECU (smart key ECU assembly) stores the operation history of the smart access system with push-button start and it can be read using the Techstream.
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Utility / Operation History / Certification ECU operation log of ID code registration, Radio wave interference or Radio wave interference 2.
Body Electrical > Smart Access > Utility| Tester Display |
|---|
| Operation History |
(e) Following the instructions on the screen, save the operation history.
| Operation History List |
|---|
| Auto Entry Mode Switch History |
| Auto Entry Wireless Operation History |
| Warning Operation History |
| Engine Start |
| System Start Operation |
| Customize (Auto Entry Cancel) |
| Customize (Door Unlock Mode Switch) |
| Radio wave interference (RF Signal Received) |
| Engine Start (inactive) |
| System Start Operation (inactive) |
| Remote Engine Starter (inactive) |
| Auto Entry Unlock (inactive) |
| Registration Function (Reason for Non-operation) |
| Auto Entry Lock (inactive) |
| Engine Start Inactive (Brake/Clutch System) |
| Radio Wave Interference (RF Reception Not Available) |
| Engine Start Inactive (Steering Lock System) |
HINT:
Some items are not displayed depending on the vehicle.
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a ...
Open in Driver Side Electrical Antenna Circuit (B27A1)
DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly (for driver door) (electrical key antenna) at i ...
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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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