Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Horn System| Symptom | Suspected Area | Link |
|---|---|---|
| Horn does not sound | HORN fuse | - |
| HORN relay | | |
| Horn button assembly | | |
| Steering pad switch assembly | | |
| Spiral cable with sensor sub-assembly | | |
| Instrument panel junction block assembly | | |
| Harness or connector | - | |
| Horn sounds all the time | HORN relay | |
| Horn button assembly | | |
| Steering pad switch assembly | | |
| Spiral cable with sensor sub-assembly | | |
| Instrument panel junction block assembly | | |
| Main body ECU (Multiplex network body ECU) | | |
| Harness or connector | - | |
| Low pitched horn operates but high pitched horn does not operate | High pitched horn assembly | |
| Harness or connector | - | |
| High pitched horn operates but low pitched horn does not operate | Low pitched horn assembly | |
| Harness or connector | - |
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System Diagram
SYSTEM DIAGRAM ...
Data List / Active Test
DATA LIST / ACTIVE TEST PERFORM ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrus ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Roof Rack(w/ Rear No. 2 Seat): Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL ROOF CARRIER SEAL HINT: When installing the roof carrier seals, heat the roof rack assembly using a heat light. Heating Temperature ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Black Out Tape (for Front Door): 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 black out tape removal/installation are shown below. Necessary Procedures After Parts Removed/Installed/ ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- 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
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