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