2007 Lexus LX 470FACTORY OEM SERVICE PROCEDURE

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.

PROBLEM SYMPTOMS

Symptom Suspected area Refer To
Horn does not sound 1. HORN fuse INSPECTIONΒ 
2. Integration relay (HORN relay) -
3. Low pitched horn assembly INSPECTIONΒ 
4. High pitched horn assembly INSPECTIONΒ 
5. Steering pad assembly -
6. Wire harness -
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.