IBM ThinkPad 340 Series Hardware Maintenance Manual page 150

6. Select the PCMCIA icon and press Enter to run the
test on the PCMCIA slots. The green LED on the
PCMCIA card should turn on when the test runs. (If
the green LED does not turn on, see "Reading the PC
Test Card LED" on page 158.) Test results will be
displayed under the PCMCIA icon.
7. If no errors are detected, the "OK" message appears.
8. If an error is detected, the FRU code and error
description message appear. Go to "FRU Codes" on
page 144 and replace the FRU.
9. To exit from the test screen, press Esc.
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