Note: The list of electrical equipment installed on the vehicle is determined by the configuration of a specific model. If necessary, refer to the Operation Manual or the supply department of the Opel branded service station.
Caution: Before servicing components of on-board electrical systems, familiarize yourself with the safety requirements for working with electrical devices.
The vehicle is equipped with a 12-volt on-board power supply system with negative grounding. Power is supplied to the lighting devices and other consumers from a lead-acid battery, which is recharged from an alternator. All components are connected to each other by wires, most of the contact connectors of the on-board electrical equipment circuits are made of plastic and are multi-contact. The reliability of the joint of the halves of such connectors is ensured by the snapping of the locking tongues built into the plugs of the locks. Before disconnecting such a connector, carefully study its design in advance - it is often not easy to determine the method of fixing its halves by eye; some connectors are equipped with several locking units. To avoid accidental damage to the contact terminals built into the connector, when disconnecting the connector, pull only on the plug and under no circumstances on the wiring harness.
This Chapter describes the repair and maintenance procedures for electrical components installed on the vehicle that are not directly related to engine operation. Information on servicing components such as the battery, alternator, and starter is provided in Chapter 5, dedicated to engine electrical systems.
Before you start servicing components of the on-board electrical equipment, in order to avoid electric shock or fire as a result of an accidental short circuit, disconnect the wire from the negative terminal of the battery, and in some cases completely disconnect the battery - be sure to follow the recommendations given in Chapter 5. Regularly check the condition of the wiring harnesses and the reliability of their fastening in intermediate clamps, clamps and strapping. Make sure that the insulation of the wires does not rub off when in contact with components located next to the harness.
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