Audi 80/Avant (B4)

since 1991-1995 of release

Repair and car operation

• The indicator in a combination of devices is supplied with two positive conclusions, namely one from the plug D + the generator (a dark blue wire) and another from the plug 15 through the dark blue multicontact shtekerny connection suitable to the device behind from the lock of ignition (a black-dark blue wire).
• At ignition inclusion on the plug 15 tension arrives. The generator, however, for the present does not work, and consequently the D +-contact which was without a food operates as "minus". The indicator flashes, because between the onboard network receiving a food 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 a 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 should «предвозбудить» the generator. Only in this case the generator can already make a current on low turns. However preexcitement is necessary only at the first start of the generator.

Additional charge occurs not always

Even if the indicator of a charge does not burn, it yet does not mean that the storage battery is really charged. It says only that there is no any more a potential difference between the accumulator and the generator. If idling the engine all consumers of a 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 storage battery does not exist.