alternator SATURN AURA HYBRID 2010 Owners Manual

When the battery’s state of charge is low, the voltage is
raised slightly to quickly bring the charge back up.
When the state of charge is high, the voltage is lowered
slightly to prevent overcharging. If the vehicle has a
voltmeter gage or a voltage display on the Driver
Information Center (DIC), you may see the voltage move
up or down. This is normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be
spinning fast enough at idle to produce all the power
that is needed for very high electrical loads.
A high electrical load occurs when several of the
following are on, such as: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels
of corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC)message might be displayed, such as BATTERY
SAVER ACTIVE, BATTERY VOLTAGE LOW, or LOW
BATTERY. If this message is displayed, it is
recommended that the driver reduce the electrical loads
as much as possible. SeeDIC Warnings and Messages
on page 4-41.
Battery Run-Down Protection
The battery run-down feature is designed to protect the
vehicle’s battery.
When any interior lamp (trunk, reading lamps, or dome
lamp) is left on when the ignition is turned off, the
battery run-down protection system automatically shuts
the lamp off after 20 minutes. This prevents draining
of the battery.
To reactivate the interior lamps, do one of the following:
•Open any door.
•Press any Remote Keyless Entry (RKE) transmitter
button.
•Press the power door lock switch.
•Press the remote trunk release.
•Turn the lamp that was left on to off and then to on
again.
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Fuses Usage
1 Air Conditioner Clutch
2 Electronic Throttle Control
3 Belt Alternator Starter (BAS) IGNFuses Usage
4Transmission, Transmission Control
Module Ignition 1
5 Belt Alternator Starter (BAS) Pumps
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Fuses Usage
6 Emission
7 Left Headlamp Low-Beam
8 Horn
9 Right Headlamp Low-Beam
11 Left Headlamp High-Beam
12 Right Headlamp High-Beam
13 Engine Control Module BATT
14 Windshield Wiper
15Antilock Brake System (ABS)
(IGN 1)
16 Engine Control Module (IGN 1)
17 Cooling Fan 1
18 Cooling Fan 2
19Run Relay, Heating, Ventilation,
Air Conditioning Blower
20 Body Control Module 1
21 Body Control Module Run/Crank
22 Rear Electrical Center 1Fuses Usage
23 Rear Electrical Center 2
24 Antilock Brake System (ABS)
25 Body Control Module 2
26 Starter
41 Electric Power Steering
42Transmission Control Module
Battery
43 Ignition Module
44 Injectors
46 Daytime Running Lamps
47 Center High-Mounted Stoplamps
50 Driver Power Window
51 Belt Alternator Starter (BAS) BATT
52 Transmission Pump Motor
54 Battery Voltage Sense
55 Antilock Brake System (Battery)
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