Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

• The indicator in a combination of devices is supplied with two positive conclusions, namely one from the plug D + the generator (a blue wire) and another from the plug 15 through the blue multicontact shtekerny connection suitable to the device behind from the ignition lock (a black-blue wire).
• At inclusion of ignition on the plug 15 tension arrives. The generator, however, for the present does not work and therefore the D +-contact which is without food works as "minus". The indicator flashes because between the onboard network receiving power supply from the accumulator, and the potential difference exists the idle generator.
• If the engine is started and the generator reached number of turns, necessary for a charge, the regulator of tension connects it to an onboard network. Now food arrives from the plug 15 and in addition from the plug D +. When the potential difference does not exist, the indicator of a charge dies away.
• At ignition inclusion the burning indicator of a charge has to "predvozbudit" the generator. Only in this case the generator will be able already to make current on low turns. However preexcitement is necessary only at the first start of the generator.

Recharge happens not always

Even if the indicator of a charge does not burn, it does not mean yet that the battery is really charged. It says only that there is no potential difference between the accumulator and the generator any more. If idling the engine all consumers of current are included, for example, the indicator of a charge does not burn though from the accumulator more current arrives, than can develop the low-power generator: but nevertheless the difference of tension with the battery does not exist.