Communication System: Inspection

1. Check the resistance of the HORN fuse.

   Standard: Below 1 Ω. 

Fig 1: Checking Resistance Of Horn Fuse

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the fuse.

1. Check operation of the horn.
   LOW PITCHED HORN ASSY HORN MEASUREMENT AND SPECIFIED CONDITIONS
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) -> Terminal 1 Battery negative (-) -> Horn body	Horn sounds

   If the result is not as specified, replace the horn assy.

   Fig 2: Inspecting Low Pitched Horn Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check operation of the horn.
   HIGH PITCHED HORN ASSY MEASUREMENT AND SPECIFIED CONDITIONS
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) -> Terminal 1 Battery negative (-) -> Horn body	Horn sounds

   Fig 3: Inspecting High Pitched Horn Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   If the result is not as specified, replace the horn assy.