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If the Scan Tool detects that a
DTC related to the vehicle's
battery or charging system is
present in the vehicle's com-
puter, a "Warning" message
displays. Perform the neces-
sary service procedures to
correct the malfunction before
performing
alternator test.
To perform a battery check ONLY:
1. Select Battery Test from the Battery/Alternator Test Menu, then
press MENU/ENTER
An "instructional" message displays, showing the procedures to
prepare the vehicle for the battery check.
2. 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.
3. Select Next, then press MENU/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 MENU/ENTER
An "instructional" message displays.
4. Turn the vehicle's headlights on. Select Next, then press
MENU/ENTER
An "instructional" message displays.
5. Turn the vehicle's headlights off. Select Next, then press
MENU/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 MENU/ENTER
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.
Additional Functions
BATTERY/ALTERNATOR TEST
any
battery/
.
to proceed.
to proceed.
to proceed.
to continue.
to return to the Main Menu.
37
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