Starting and Charging: Description and Operation

Starting System
Current (+30 circuit) is supplied from battery 1 to ignition switch 20 and also direct to connection 30 on starter motor 4.

When the ignition switch is turned to the Start position, current (+50 circuit) is supplied to the actuating coil of the solenoid. The actuating coil closes the start contact, allowing current from the battery to flow through the starter motor which then starts to rotate

In certain markets, current (+50 circuit) is supplied to the anti-theft alarm control module (289) and starter interlock relay 452.

Automatic Transmission
On cars with automatic transmission, starter motor inter lock 77 is fitted to prevent the engine from being started when the selector lever is in position 1, 2, 3, D or R.

Charging System
The charging warning lamp informs the driver whether the generator is charging the battery or not. When ignition switch 20 is in the Drive position, positive voltage (+15 circuit) is supplied via fuse 13 to charging warning lamp 47E in the main instrument display panel and then on to generator 2.

When the generator is not rotating or if it is not charging for some reason or other, the charging warning lamp circuit is grounded through the generator and the lamp will light up.

When the generator is charging, connection D+ receives the same voltage as B+. The charging lamp is then supplied with the same voltage on both connections and the lamp goes out.

IMPORTANT: Since the field excitation of the generator is built up through the incandescent bulb, the bulb rating (2W) must not be changed.

To increase the field excitation still further, a resistor is connected in parallel with the bulb.

A diode is connected in series with the charging lamp to prevent reverse currents.