Lifescan ONETOUCH ULTRA2 Owner's Booklet page 64

Message
58
What it means
There is a problem
with the meter.
Error message could
be caused either by
a used test strip or a
problem with the meter.
What to do
Do Not use the meter.
Call the OneTouch ®
Customer Care Line
at 1 800 663-5521.
Repeat the test with a new
test strip; see pages
26–30. If this message
continues to appear,
call the OneTouch ®
Customer Care Line
at 1 800 663-5521.