Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Inspection

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Suspension / Steering Column / Steering Heater Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT STEERING HEATER SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)

(a) Measure the voltage according to the value (s) in the table below.

Standard Voltage:

Tester Connection (Positive (+) Tester Probe - Negative (-) Tester Probe)

Switch Condition

Specified Condition

4 (IG1) - 9 (IND)

Always

Below 1.25 V

16 (ECU) - 9 (IND)

Steering heater switch (Integration Control and Panel Assembly) is pushed

Below 1.25 V

HINT:

As the circuit has a diode, perform the measurement in diode test mode, and do not mistake the polarity.

*a

Component without harness connected

(Steering Heater Switch (Integration Control and Panel Assembly))

(b) Measure the resistance according to the value (s) in the table below

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

4 (IG1) - 16 (ECU)

Steering heater switch (Integration Control and Panel Assembly) is pushed

Below 1 Ω

Steering heater switch (Integration Control and Panel Assembly) is not pushed

10 kΩ or higher
    Components
    COMPONENTS ILLUSTRATION *1 STEERING HEATER SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) *2 LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY *3 COWL SIDE TRIM BOARD LH *4 NO. 1 I ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL STEERING HEATER SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) (a) Engage the 4 claws to install the steering heater switch (integration control and panel assembly). ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning Amplifier: Installation
    INSTALLATION PROCEDURE 1. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY Install in this Direction (a) Engage the guide to temporarily install the air conditioning amplifier assembly as shown in the illustration. (b) Install the air conditioning amplifier assembly with the screw. 2. INSTALL A ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Theft Deterrent System: Theft Warning Siren Circuit
    DESCRIPTION The theft warning siren assembly sounds if either of the following conditions is met: The theft deterrent system is in the alarm sounding state. The theft warning siren assembly is in the armed state when the power source, ground or communication line is open. WIRING DIAGRAM CAU ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0152