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Alternator Check
Set up the unit, connect the battery clamps and connect to the battery
following steps 1 through 5 under "Procedure" in the "Jump-Starter"
section.
Important Notes About the Alternator Check Function
1. The unit may detect that the alternator is out of typical voltage
range because someone has added a number of accessory loads
on the charging system, thereby increasing current demand from
the alternator. MAKE SURE THAT THE ALTERNATOR IS RATED
TO SUPPORT THE APPLICATION.
2. This check may not be accurate for every make, manufacturer and
model of vehicle. Check only 12 volt systems.
PART 1
No Load (turn OFF all vehicle's accessories): The vehicle battery
must be fully charged before testing the alternator. Run the engine
long enough to achieve normal idle speed and verify there is a no-load
voltage.
1. Press the Alternator Check Button to start the check. The Backlit
LCD Screen will display the following to indicate the unit is analyzing
the alternator:
The Battery Status Icon will light solid and the Alternator Icon will
flash.
2. If the unit detects that the alternator is good, the Backlit LCD
Screen will display the following:
The Battery Status Icon, Alternator Icon, and "ALT GOOD" will light
solid.
3. If the unit detects that the alternator is out of typical voltage range,
the Backlit LCD Screen will display the following:
The Battery Status Icon, Alternator Icon and "ALT" will light solid.
The Fault Icon will flash.
4. Press the Alternator Check Button again to stop the test and turn
off the unit.
PART 2
Under Load (accessories ON): Next, load the alternator by turning
on as many accessories as possible (except for A/C and Defrost).
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