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First of all always check a condition of a safety lock. |
1. Disconnect an electrical wiring from horn horns.
2. For check of serviceability of functioning of a horn give battery tension on one of its plugs. Ground the second plug (use wires crossing points). If the horn does not publish a sound signal, replace it.
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3. At correct sounding of a horn check presence of tension on the horn socket at the pressed button of management. If tension takes place, check a condition of grounding. |
4. If tension is absent, check the corresponding relay (see the Section of the Relay - the general information and check of serviceability of functioning).
5. If the relay as it should be, check serviceability of giving of food for the relay of power and a contour of management. At violation of giving of food in any of contours check a condition of an electrical wiring on the site of a chain between the relay and the assembly block of safety locks.
6. If tension regularly moves in both contours, press the button of a horn and check conductivity of the switch for weight. In the absence of conductivity check a chain for break. If a chain as it should be, replace the horn switch.
7. In the absence of conductivity of the switch check for break and short circuit a chain on the site between the relay and the switch. |