follow the steps and fix it. God bless you
The power up test sequence has detected a key in the
operated condition. The power up test
sequence is performed every time the unit is turned on
(powered up). This test is performed
because a permanently stuck key will inhibit the
correct operation of the unit.
Possible Causes
1. A key on the display housing is permanently stuck
in the operated condition.
2. One of the upper PCA's keypad interface chips has
failed.
3. Liquid (perhaps perspiration) is present on the
surface of a touch sensitive display.
Possible Remedies
1. Remove the keypad connector cable from the upper
PCA. Restart the power up sequence, if
the ERROR 5 is no longer present, the keypad is the
cause. The keypad is typically part of
the display housing. Replace the display housing to
correct the problem.
2. Remove the keypad connector cable from the upper
PCA. Restart the power up sequence, if
the ERROR 5 is still
present, the upper PCA is the cause. Replace the upper PCA to correct
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