Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Inspection
INSPECTION
PROCEDURE
1. INSPECT STEERING PAD SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration | *A | w/ Lane Departure Alert System | - | - |
| *a | Component without harness connected (Steering Pad Switch Assembly) | *b | Seek+ |
| *c | Seek- | *d | Volume+ |
| *e | Volume- | *f | MODE |
| *g | Voice | *h | Off Hook |
| *i | On Hook | *j | Up |
| *k | Down | *l | Left |
| *m | Right | *n | Enter |
| *o | Back | *p | Top |
| *q | Lane Departure Alert | *r | Distance Control |
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A-11 - A-8 | No switch pushed | 95 to 105 kΩ |
| Seek+ switch pushed | Below 2.5 Ω | |
| Seek- switch pushed | 313 to 345 Ω | |
| Volume+ switch pushed | 950 to 1050 Ω | |
| Volume- switch pushed | 2955 to 3265 Ω | |
| A-10 - A-8 | No switch pushed | 95 to 105 kΩ |
| MODE switch pushed | Below 2.5 Ω | |
| On hook switch pushed | 313 to 345 Ω | |
| Off hook switch pushed | 950 to 1050 Ω | |
| Voice switch pushed | 2955 to 3265 Ω | |
| A-3 - A-8 | No switch pushed | 95 to 105 kΩ |
| Left switch pushed | Below 2.5 Ω | |
| Up switch pushed | 313 to 345 Ω | |
| Down switch pushed | 950 to 1050 Ω | |
| Right switch pushed | 2955 to 3265 Ω | |
| A-2 - A-8 | No switch pushed | 95 to 105 kΩ |
| Enter switch pushed | Below 2.5 Ω | |
| Top switch pushed | 313 to 345 Ω | |
| Back switch pushed | 950 to 1050 Ω | |
| A-4 - A-7* | No switch pushed | 1 MΩ or higher |
| Distance control switch pushed | Below 2.5 Ω | |
| Lane departure alert switch pushed | 228 to 252 Ω | |
| A-6 - B-1 | Always | Below 2.5 Ω |
| A-7 - C-1 | Always | Below 2.5 Ω |
| A-12 - C-3 | Always | Below 2.5 Ω |
- *: w/ Lane Departure Alert System
HINT:
If the result is not as specified, replace the steering pad switch assembly.
(b) Check the illumination.
| *a | Component without harness connected (Steering Pad Switch Assembly) | - | - |
(1) Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead to terminal 9 of the steering pad switch assembly connector.
(2) Check that the steering pad switch assembly illumination illuminates.
OK:
The steering pad switch assembly illumination illuminates.
HINT:
If the result is not as specified, replace the steering pad switch assembly.
Components
COMPONENTS ILLUSTRATION *1 STEERING PAD SWITCH ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ...
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, 2 ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 8 Inch Display): D-Seat ECU Vehicle Information Reading/Writing Process Malfunction (B15F8)
DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen. HINT: The main body ECU (multiplex network body ECU) controls the front power seat control system (w/ Memory) rela ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Tilt And Power Telescopic Steering Column System: Terminals Of Ecu
TERMINALS OF ECU MULTIPLEX TILT AND TELESCOPIC ECU *a Component without harness connected (Multiplex Tilt and Telescopic ECU) - - (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Conditi ...
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
0.0149