General information and precautions

The body electrical system consists of all lights, wash/wipe equipment, interior electrical equipment, and associated switches and wiring.

The electrical system is of the 12 volt negative earth type. Power to the system is provided by a 12-volt battery, which is charged by the alternator (see Chapter 5).

The engine electrical system (battery, alternator, starter motor, ignition system) is covered separately in Chapter 5.

Precautions
Warning: Before carrying out any work on the electrical system, read through the precautions given in “Safety first!” at the beginning of this manual, and in Chapter 5.

Prior to working on any component in the electrical system, the battery negative lead should first be disconnected, to prevent the possibility of electrical short circuits and/or fires.

    See also:

    Horn switch assembly - removal and refitting
    1 Disconnect the battery negative lead. Switch Models up to 1987 2 Pull the trim insert from the centre of the steering wheel, and disconnect the lead from the horn push. 3 Disconnect the two le ...

    Roadwheel check (Every 12 000 miles or 12 months)
    Check the wheel rims for distortion, damage and excessive run-out. Also make sure that the balance weights are secure with no obvious signs that any are missing. Check the torque of the wheel bolt ...

    Steering wheel - removal and refitting
    Removal 1 Set the front wheels in the straight-ahead position. 2 Prise the trim insert from the centre of the steering wheel, and where applicable, disconnect the horn electrical lead(s) (see il ...