Attention: Before you start servicing the components of the onboard electrical equipment, read the requirements of the safety regulations for working with electrical appliances.
The vehicle is equipped with a 12-volt negative ground electrical system. The power supply to lighting fixtures and other consumers is carried out from a lead-acid type battery, which is recharged from an alternator. All components are interconnected by wires, most of the contact connectors of the onboard electrical equipment circuits are made of plastic and are multi-pin. The reliability of the articulation of the halves of such connectors is ensured by snapping the locking tabs of the latches mounted in the plugs. Before disconnecting such a connector, first carefully study its design - it is often not at all easy to determine how to fix its halves by eye; some connectors are equipped with multiple locking assemblies. Pull only on the plug, and in no case on the wiring harness, in order to avoid accidental damage to the contact terminals mounted in the connector.
This Chapter describes the procedures for repair and maintenance of electrical components installed on the vehicle and not directly related to the operation of the engine. Refer to Chapter 5 Engine Electrical Systems for information on servicing components such as the battery, alternator and starter. To prevent electrical shock or fire from an accidental short circuit, disconnect the negative battery cable and, in some cases, disconnect the battery completely before attempting any maintenance on the vehicle's electrical components - be sure to follow the recommendations in Chapter 5. Regularly check the condition of the wiring harnesses and the reliability of their fastening in intermediate clamps, clamps and strappings. Make sure that the wire insulation does not fray when in contact with components located adjacent to the harness.
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