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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis >> Electrical >> Horns >> Horn >> Horn System >> Problem Symptoms Table

Problem Symptoms Table

HINT.

Use the table below to help determine the cause of the problem symptom 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 

PROBLEM SYMPTOMS - HORN SYSTEM

Symptom Suspected Area See
Horn does not sound High pitched horn HIGH PITCHED HORN 
Low pitched horn LOW PITCHED HORN 
Steering pad (Horn button) -
Steering pad switch with modulator -
Front light ECU -
CAN communication system CAN COMMUNICATION SYSTEM
Harness or connector VEHICLE HORN DOES NOT SOUND