Battery/Alternator Test - Innova CarScan Owner's Manual

Additional Tests

BATTERY/ALTERNATOR TEST

BATTERY/ALTERNATOR TEST
The Scan Tool can perform a check of the vehicle's battery and
alternator system to ensure the system is operating within acceptable
limits. You can perform a battery check only, or an alternator system
(battery and alternator) check.
To perform a battery check ONLY:
1. Press M and release.
The Main Menu displays.

2. Select Battery/Alternator Test, then
press ENTER
The Battery/Alternator Monitor Test

displays.
3. Select Battery Test, then press ENTER
.
An "instructional" message displays, showing the procedures to

prepare the vehicle for the battery check.
4. Prepare the vehicle for the battery check:
Turn the engine off.

Place the transmission in PARK or NEUTRAL, and set the

parking brake.
Make a visual check of the battery's condition. If the battery

terminals are corroded or other damage is present, clean or
replace the battery as appropriate.
For "unsealed" batteries, make sure the water level in each cell

is above the battery plates.
Turn the ignition on. DO NOT start the engine.

5. Press ENTER
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
An "instructional" message shows.

6. Turn the vehicle's headlights on, the press ENTER
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
50
.
to begin the battery check.
to continue.
to continue.
to continue.