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Operating Instructions and Parts Manual 24359
DIGITAL BATTERY ANALYZER
4/18
2018 OEMTOOLS
™
a. “CRANKING VOLTS NORMAL”
The system cranking voltage is in a good range.
b. “CRANKING VOLTS LOW”
The cranking voltage is below normal limits;
troubleshoot the starter with manufacturers
recommended procedure.
c. “CRANKING VOLTS NOT DETECTED”
The cranking voltage is not detected, retest.
Press the “Enter” button to go to next step.
CHARGING SYSTEM TEST
1. The screen will show “PRESS ENTER FOR
CHARGING TEST” Press the “Enter” button to
begin charging test. The screen will show “MAKE
SURE ALL LOADS ARE OFF”. This is for testing
alternate idle voltage. Press the “Enter” button to
go to next step. The screen will show results. One
of the three results will be displayed along with the
actual voltage reading measured.
a. “ALT. IDLE VOLTS NORMAL”
The system is showing normal output from the
alternator. No problem is detected.
b. “ALT. IDLE VOLTS LOW”
The alternator is not providing sufficient current
to the battery. Check the belts to ensure the
alternator is rotating with 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,
troubleshoot the alternator with the manufacturers
recommended procedure.
c. “ALT. IDLE VOLTS HIGH”
The voltage output from the alternator exceeds
the normal limits of a functioning regulator. Check
to ensure there are no loose connections and
the ground connection is normal. If there is no
connection issue troubleshoot the alternator/
regulator with the manufacturers recommended
procedure. The normal high limit of a typical
automotive regulator is 14.7 volts +/- 0.05. Check
manufacturer specifications for the correct limit, as
it will vary by vehicle type and manufacturer.
2. With the engine at idle, press “ENTER” for the
charging system with accessory loads test. The
screen will show “TURN ON LOADS AND PRESS
ENTER”. Turn on the blower to high (heat), high
beam headlights, and rear defogger. Do not
use cyclical loads such as air conditioning or
windshield wipers. Note: When testing older model
diesel engines, you may need to run up the engine
to 2500 rpm for 15 seconds.
3. Press the “ENTER” key to test the charging system
with accessory loads. One of the three results
will be displayed along with the actual testing
measured.
a. “ALT. LOAD VOLTS NORMAL”
The system is showing normal output from the
alternator. No problem detected.
b. “ALT. LOAD VOLTS LOW”
The alternator is not providing sufficient current
for the systems electrical loads and the charging
current for 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
working condition, troubleshoot the alternator with
the manufacturers recommended procedure.
c. “ALT. LOAD VOLTS HIGH”
The voltage output from the alternator to the
battery exceeds the normal limits of a functioning
regulator. Check to ensure there are no loose
connections and that the ground connection
is normal. If there are no connection issues,
troubleshoot the alternator/regulator with the
manufacturers recommended procedure.
4. Press “ENTER” when charging system test is
complete. Turn all accessory loads and engine
off. Press “ENTER” to return to step 1 or remove
the test clamps from the battery posts after
completion of testing to end test.
ADJUST DISPLAY BRIGHTNESS
1. Connect the Battery Tester to a vehicle battery.
2. The tester defaults to BATTERY TEST display.
3. Press “◀ ” button three times to get to the LCD
BRIGHTNESS display.
4. Press “Enter” button to show LCD Brightness in
percentage.
5. Press the “◀ ◀” button to adjust the LCD brightness.
6. Press “Enter” button to save the setting and return
to LCD BRIGHTNESS display.
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