Full Product Manual

12
12
Using the Alternator Check Function
Set up the battery charger and connect to the battery following steps 1 through 2 in the “Charging the
Battery” section.
PART 1
No Load (turn OFF all vehicle’s accessories): The 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 LCD screen will display the following to
indicate the unit is analyzing the alternator:
“Check” will flash, and the alternator icon and the gauge without the pointer will light solid.
2. If the unit detects that the alternator is good, the LCD screen will display the following:
“Good”, the alternator icon and the gauge without the pointer will light solid.
3. If the unit detects that the alternator is out of typical voltage range, the LCD screen will display the
following:
The fault icon and “ALT” will flash; the alternator icon, and the gauge without the pointer will
light solid.
4. Press the alternator check button again to stop the test.
PART 2
Under Load (accessories ON): Next, load the alternator by turning on as many accessories as possible
(except for A/C and Defrost).
1. Press the alternator check button to start the check. The LCD screen will display the following to
indicate the unit is analyzing the alternator:
“Check” will flash, and the alternator icon and the gauge without the pointer will light solid.
2. If the unit detects that the alternator is good, the LCD screen will display the following:
“Good”, the alternator icon and the gauge without the pointer will light solid.