Battery Replacement - Rac -HP104 Manual

B. Keyboard Test
The Keyboard Test is used to verify that the keys are functioning
properly.
1) Use the UP/DOWN scroll buttons to select Keyboard Test from
the Tool Self-Test menu, and then press the Y button.
2) Press any key to start test. When you press a key, the key name
should be observed on the display. If the name does not show up,
then the key is not functioning properly.
3) Double press [N] to return to the menu.

3.8 Battery Replacement

The scan tool requires a 9V cell battery to operate without vehicle
power. When the batteries need to be replaced, a low-battery
warning message appears.
1) Locate the battery cover on the back of the scan tool.
2) Remove the battery cover screw and slide the battery cover off.
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