Schumacher PST-900X - Manual (Page 7)

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the screen will show COde and a computer generated code number. 7.
after the code is displayed, press eNter.
the screen will show PrINt resuLts and a NO or Yes option. to
8.
change the print results choice, press the FOrWard or BaCK button.
Once the correct option has been selected, press eNter and the
tester will print the results of the test or it will go back to the first screen,
depending on which option was chosen. NOte: if you select Yes to print;
after you’ve printed the number of copies you need, you must select NO
to return to the BatterY test screen.
remove the clamps from the battery posts after the completion to end the
9.
test.
TO TEST THE CHARGING SYSTEM
Connect the tester as specified in CONNECTING THE TESTER. 1.
Once you connect the tester to a battery, the screen will come on and 2.
display BatterY test and the voltage of the battery the tester is
connected to. Press the FOrWard button to get to the sYsteM test,
and then press eNter.
turn off all accessories and loads, such as lights, air conditioning, radio,
3.
etc., and close all of the vehicle’s doors and trunk lid before starting the
engine.
When the engine is started, one of the three following results will be
4.
displayed along with the actual reading measured.
CraNKING VOLts NOrMaL: the system is showing normal draw. •
Press eNter to perform the charging system test.
CraNKING VOLts LOW: the cranking voltage is below normal
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limits; troubleshoot the starter with the manufacturer’s recommended
procedure.
CraNKING VOLts NOt deteCted: the cranking voltage is not
•
detected.
If cranking voltage is normal, press eNter to begin the charging system 5.
test.
the display will show Press eNter FOr CHarGING test. Press
6.
eNter to continue.
The display will show MAKE SURE ALL LOADS ARE OFF. Confirm that
7.
all accessories are off and the doors and trunk are closed. Press eNter
to continue.
One of the three following results will be displayed along with the actual
8.
reading measured.
LOW CHarGING VOLts WHeN at IdLe: the alternator is not •
providing sufficient current to the battery. Check the belts to ensure the
alternator is rotating with the engine running. If the belts are slipping or
broken, replace the belts and retest. Check the connections from the
alternator to the battery. If the connection is loose or heavily corroded,
clean or replace the cable and retest. If the belts and connections are in
good condition, the alternator may need to be replaced, have it checked.
CHarGING sYsteM NOrMaL WHeN at IdLe: the system is showing
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normal output from the alternator. No problem is detected.