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Additional Tests
BATTERY/ALTERNATOR TEST
37
Turn the ignition on. DO NOT start the engine.
5. Press ENTER
to begin the battery check.
If the engine is running, an advisory message shows. Turn
the engine off, then turn the ignition on. DO NOT start the
engine. Press ENTER
to continue.
An “instructional” message shows.
6. Turn the vehicle’s headlights on, the press ENTER
to continue.
A “countdown” message shows while the battery check is in
process.
If battery voltage is less than 12.1 volts, an advisory message
shows. Press M to return to the Main Menu. Turn the ignition off
and disconnect the Scan Tool from the vehicle. Fully charge the
battery, then repeat the battery check.
If battery voltage is greater than 12.1 volts, an “instructional”
message shows.
7. Turn the vehicle’s headlights off, then press ENTER
to continue.
An “instructional” message shows.
8. Start the vehicle’s engine. Allow the engine to run for several
seconds, then turn the engine off. Repeat for a total of three
“start/stop” cycles.
If the Scan Tool did not detect “cranking status” for the
vehicle’s engine, an advisory message shows. Press
ENTER
to repeat the battery check, or, press M to
return to the Main Menu.
9. When the battery check is complete, a
results screen displays the battery
status. The System Status LEDs
provide a PASS/FAIL indication, as
follows:
Green = Good
Yellow = Normal
Red = Warning/Bad
10. Press M to return to the Main Menu.
To perform a charging system check:
1. Press M and release.
The Main Menu displays.
2. Select Battery/Alternator Test, then
press ENTER
.
The Battery/Alternator Test Menu
displays.
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