Lexus RX (RX 350L, RX450h) 2016-2025 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) 2016-2025 Repair Manual > Rear Combination Light Assembly (w/ Rear No. 2 Seat): Disassembly
DISASSEMBLY 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. REMOVE REAR COMBINATION LIGHT CAP (for LED Type Turn Signal Light) (a) for TMMC Made: (1) Remove the rear combination light cap. HINT: Use ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Wiper Rubber: Replacement
REPLACEMENT PROCEDURE 1. REMOVE REAR WIPER BLADE (w/o Rear No. 2 Seat) (a) Turn the engine switch on (IG). (b) Operate the rear wiper and when the rear wiper arm and blade assembly reach the point at which they reverse, turn the engine switch off. (c) Apply protective tape to the rear ...
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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