Asking help: the car's horns are not working

My car is 2003 toyota camry, the horns are not sound at all. I only see there is one line connected to the horn and I check wire the 0 resistant with the negative of the battery. is there two wire? positive and negative. how could I check and fix it. Thanks 

所有跟帖： 

• horn电阻很低（10厄姆左右）用X1档量，先量有否电压。 -味苦- ♂ (0 bytes) () 12/20/2014 postreply 13:00:09

• Thank you -marie628- ♀ (0 bytes) () 12/20/2014 postreply 16:25:31

• Mine was the clock spiral cable -leslieking- ♂ (130 bytes) () 12/21/2014 postreply 08:32:43

• ebay五块钱一个horn.买个新的算了。 -追风大老虎- ♀ (146 bytes) () 12/23/2014 postreply 12:05:39