FixVault

Horn System

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
HORN SYSTEM TROUBLE SYMPTOMS REFERENCE

Symptom Suspect Area See Section
Horn system does not operate.
  1. HORN Fuse (Engine Room J/B)
  2. Horn Relay (Engine Room J/B)
  3. Horn Switch
  4. Horn
  5. Wire Harness
  1. -
  2. INSPECTION
  3. INSPECTION
  4. INSPECTION
  5. -
Horns blow all the time.
  1. Horn Relay (Engine Room J/B)
  2. Horn Switch
  3. Wire Harness
  1. INSPECTION
  2. INSPECTION
  3. -
One horn operates but other horn does not operate.
  1. Horn
  2. Wire Harness
  1. INSPECTION
  2. -
Horns operate abnormally.
  1. Horn Relay (Engine Room J/B)
  2. Horn
  3. Wire Harness
  1. INSPECTION
  2. INSPECTION
  3. -