Warning! Before performing any work on the electrical system, read the safety precautions described below and in section 6.
The negative ground electrical system has an operating voltage of 12 volts. Power for the electrical system comes from a lead-acid battery, which is recharged by the generator.
This section describes the repair and maintenance procedures for various non-engine related electrical components of the vehicle. Information on the battery, alternator, distributor, and starter can be found in subsection 6.3, subsection 6.7, subsection 7.2 and subsection 6.9 respectively.
It should be noted that when working with any element of the vehicle's electrical equipment, the negative battery terminal wire must be disconnected to prevent short circuits and/or fire.
Check the placement and fastening of the wires at regular intervals, making sure that the wires do not rub against other elements. If you find that any wires are rubbing against other elements, move the wires to the side and secure them so that this does not happen again.
Warning! If the radio/stereo installed in your vehicle has a theft protection coding system, remember that disconnecting the battery ground cable will erase the radio's security code.
Material was taken from a resource: opelbook

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