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 | - |
Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > Hybrid system: Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics different from
conventional
vehicles. Be sure you are closely familiar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) a ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Panoramic View Monitor System: Back Camera Current Malfunction (C1621)
DESCRIPTION DTC C1621 is stored if the parking assist ECU determines that the input/output signal communication with the rear television camera assembly is abnormal. DTC No. Detection Item DTC Detection Condition Trouble Area C1621 Back Camera Current Malfunction Rear television cam ...