Volkswagen Polo Manual
General information and precautionsBody electrical system / General information and precautions
Warning: Before carrying out any work on the electrical system, read through the precautions in “Safety first!” and in Chapter 5.
1 The electrical system is of 12 volt negative earth type. Power for the lights and all electrical accessories is supplied by a lead/acid type battery which is charged by the alternator.
2 This Chapter covers repair and service procedures for the various electrical components not associated with the engine.
Information on the battery, alternator and starter motor can be found in Chapter 5.
3 It should be noted that prior to working on any component in the electrical system, the ignition and all accessories should be switched off. On circuits which are live with the ignition off, the battery negative terminal should first be disconnected to prevent the possibility of electrical short circuits and/or fires.






