S0802190K
Page 4
Electrical System
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ELECTRIC SUPPLY SYSTEM
The electric power circuit supplies electric current to each electric component. It consists of a battery,
battery relay, starter switch, circuit breaker, fusible link and fuse box.
The negative terminal of the battery is grounded to the vehicle body.
Even when the starter switch is in the "OFF" position, electric current is supplied to the following
components through battery
→
fusible link
→
fuse circuit.
1. Cabin light, fuel pump switch, No. 1 terminal of DC-DC converter (back up for car stereo memory).
2. "B" terminal of starter switch and No. 22 terminal of air conditioner control panel.
3. Power terminal "B" of engine stop motor.
When the starter switch is in the preheat, on and start positions, the current flows from the battery
→
fusible link
→
fuse
→
starter switch "B" terminal/starter switch "BR" terminal
→
diode
→
battery relay "BR"
terminal which activates the coil of the battery relay and the electric supply system is energized.
When the battery relay’s contacts are connected, all electric devices can be operated.
While the engine is not running, the electric power for all electric devices are supplied by the battery. Once
the engine is started the power is supplied from the alternator.
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