Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Description
SYSTEM DESCRIPTION
HEATED STEERING WHEEL SYSTEM
(a) The heated steering wheel system heats the steering wheel assembly when the steering heater switch (Integration control and panel assembly) is operated.
(b) The heated steering wheel system uses a thermistor inside of the steering wheel assembly to detect the heater temperature and maintain the set temperature.
(c) The heated steering wheel timer function turns off the heater after a predetermined period of time.
HEATER CONTROLLER SYSTEM
(a) Operation description
(1) When the engine switch is on (IG), pressing the steering heater switch (integration control and panel assembly) operates the heated steering wheel system.When the heated steering wheel system is operating, the steering vibration and heater ECU illuminates the indicator LED and sends current to the steering wheel heater unit of the heated steering wheel system. Pressing the steering heater switch (integration control and panel assembly) again stops operation of the heated steering wheel system.
(2) A thermostat is installed in the steering wheel heater unit as a safety mechanism.
(3) The steering heater switch (integration control and panel assembly) LED turns off when either of the following occurs:
- An open or short in the steering wheel heater unit thermistor continues for 2 seconds or more.
- The steering heater switch (integration control and panel assembly) is pressed continuously for 10 seconds or more.
(4) The timer will turn off the heater 30 minutes after the steering heater switch was first turned on.
(b) Signal input / output description
| Signal | Signal Name | Function |
|---|---|---|
| Input | Thermistor input | Input of voltage corresponding to heater temperature |
| Input | Operating switch input | Input of power circuit operation estimate signal |
| Output | LED output | Output of LED |
| Output | Drive current output | Output of drive current |
Steering Wheel does not Heat Up When Heated Steering Wheel Switch is Pressed
DESCRIPTION Click here WIRING DIAGRAM CAUTION / NOTICE / HINT HINT:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
The steering whe ...
System Diagram
SYSTEM DIAGRAM SYSTEM DIAGRAM ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Throttle Body: Components
COMPONENTS ILLUSTRATION *1 AIR CLEANER CAP WITH AIR CLEANER HOSE *2 NO. 1 FUEL VAPOR FEED HOSE *3 NO. 2 VENTILATION HOSE - - ILLUSTRATION *1 THROTTLE BODY GASKET *2 THROTTLE BODY WITH MOTOR ASSEMBLY *3 NO. 2 WATER BY-PASS HOSE *4 NO. 3 WATER BY-PASS HOSE ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Front Door Window Frame Moulding: Components
COMPONENTS ILLUSTRATION *1 FRONT DOOR FRONT WINDOW FRAME MOULDING *2 FRONT DOOR REAR WINDOW FRAME MOULDING *3 FRONT DOOR UPPER WINDOW FRAME MOULDING *4 FRONT DOOR WEATHERSTRIP *5 FRONT DOOR SUB-ASSEMBLY *6 RIVET N*m (kgf*cm, ft.*lbf): Specified torque ● Non ...
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
0.0144