Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Steering Pad Switch Circuit
DESCRIPTION
The forward recognition camera receives LTA main switch signals from the steering pad switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.
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PROCEDURE
| 1. | INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly.
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(b) Inspect the steering pad switch assembly.
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| NG | .gif) | REPLACE STEERING PAD SWITCH ASSEMBLY |
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| 2. | INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Remove the spiral cable sub-assembly.
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(b) Inspect the spiral cable sub-assembly.
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| NG | | REPLACE SPIRAL CABLE SUB-ASSEMBLY |
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| 3. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the U14 forward recognition camera connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J29-12 (DIST) - U14-3 (LKSW) | Always | Below 1 Ω |
| J29-12 (DIST) or U14-3 (LKSW) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J29-2 (ECC) - Body ground | Always | Below 1 Ω |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Internal Control Module Software Incompatibility Invalid / Incompatible Software Component (U030057)
DESCRIPTION The forward recognition camera receives the vehicle information from the ECM via CAN communication. If the vehicle information stored in the forward recognition camera does not match the v ...
Indicator Circuit
DESCRIPTION The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE:
When replacing the f ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Front Camera System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the front camera system, perform troubleshooting for the pre-collision system.
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If a pre-collision system related warning message is displayed on the multi-information display, refer to How to Proceed with Troublesh ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Ecm: 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 ECM removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Replaced ...
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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