1. Disconnect from a horn horn electroconducting.   2. For check of serviceability of functioning of a horn submit on one of its plugs tension of the battery. The second plug earth (use wires crossing points). If the horn does not publish a sound signal, replace it.  
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 3. At serviceable sounding of a horn check tension existence on the horn socket at the squeezed-out button of management (see an accompanying illustration). If tension takes place, check a grounding condition.   | 
 
  4. If tension is absent, check the relay (see. The relay - the general information and check of serviceability of functioning).   5. If the relay as it should be, check serviceability of giving of a food on the capacity relay. Also check food giving on a management contour. At violation of giving of a food in any of contours check an electroconducting condition on a chain site between the relay and the assembly block of safety locks.   6. If tension regularly moves in contours of both relays, press the button of a horn and check conductivity of the switch on weight. In the absence of conductivity check a contour on break. If a chain as it should be, replace the horn switch.   7. In the absence of conductivity of the switch check on break and short circuit a chain on a site between the relay and the switch.  | 
 
 
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