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

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Vehicle Exterior / Lighting (ext) / Headlight Dimmer Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY

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

Standard Resistance:

Light Control Switch

Tester Connection

Condition

Specified Condition

18 (T) - 15 (EL)

Light control switch in DRL OFF position*1

10 kΩ or higher

19 (H) - 15 (EL)

Light control switch in DRL OFF position*1

10 kΩ or higher

20 (A) - 15 (EL)

Light control switch in DRL OFF position*1

10 kΩ or higher

18 (T) - 15 (EL)

Light control switch in tail position

Below 1 Ω

18 (T) - 15 (EL)

Light control switch in head position

Below 1 Ω

19 (H) - 15 (EL)

Light control switch in head position

Below 1 Ω

20 (A) - 15 (EL)

Light control switch in AUTO position

Below 1 Ω
Dimmer Switch

Tester Connection

Condition

Specified Condition

16 (HL) - 15 (EL)

Dimmer switch in low position

Below 1 Ω

14 (HU) - 15 (EL)

Dimmer switch in high or high flash position

Below 1 Ω

17 (HF) - 15 (EL)

Dimmer switch in high flash position

Below 1 Ω
Turn Signal Switch

Tester Connection

Condition

Specified Condition

12 (TR) - 15 (EL)

Turn signal switch in neutral position

10 kΩ or higher

11 (TL) - 15 (EL)

Turn signal switch in neutral position

10 kΩ or higher

13 (CR) - 15 (EL)

Turn signal switch in neutral position

10 kΩ or higher

12 (TR) - 15 (EL)

Turn signal switch in right turn position

Below 1 Ω

13 (CR) - 15 (EL)

Turn signal switch in full right turn position

Below 1 Ω

11 (TL) - 15 (EL)

Turn signal switch in left turn position

Below 1 Ω

13 (CR) - 15 (EL)

Turn signal switch in full left turn position

Below 1 Ω
Fog Light Switch *2

Tester Connection

Condition

Specified Condition

8 (LFG) - 9 (BFG)

Fog light switch off

10 kΩ or higher

8 (LFG) - 9 (BFG)

Fog light switch in front position

Below 1 Ω
  • *1: w/ Light Control Switch DRL OFF Position
  • *2: w/ Fog Light

If the result is not as specified, replace the headlight dimmer switch assembly.

*a

Component without harness connected

(Headlight Dimmer Switch Assembly)
    Components
    COMPONENTS ILLUSTRATION *A for Power Tilt and Power Telescopic Steering Column - - *1 HEADLIGHT DIMMER SWITCH ASSEMBLY *2 TILT AND TELESCOPIC SWITCH *3 WINDSHIELD WIPER SWITC ...

    Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during head ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Telephone And Gps Antenna (for Roof Side): Installation
    INSTALLATION PROCEDURE 1. INSTALL TELEPHONE AND GPS ANTENNA ASSEMBLY (a) When reusing the telephone and GPS antenna assembly: (1) Install a new seal. (b) Push the telephone and GPS antenna assembly in the direction indicated by the arrow (1) shown in the illustration to engage the guide. Inst ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Pad Switch: Installation
    INSTALLATION PROCEDURE 1. INSTALL STEERING PAD SWITCH ASSEMBLY (a) Engage the 2 claws and 2 pins to install the steering pad switch assembly. (b) Install the 2 screws. Torque: 2.4 N·m {24 kgf·cm, 21 in·lbf} (c) Connect the steering pad switch connector to the spiral cable with sensor sub-assembl ...

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

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

    © 2025 Copyright www.lexusrx.net
    0.0145