![background image](http://html1.mh-extra.com/html/accu-chek/aviva/aviva_standard-owners-booklet_3761192259.webp)
253
8
Display Shows
Possible Cause(s)
Possible Solution(s)
E-52
Code Key Error
The activation chip is incorrect. Please contact Roche.
E-53
Bad Test Error
A meter or test strip error has
occurred.
Discard the test strip and repeat the test.
Your blood glucose may be
extremely high.
If this matches how you feel, contact your healthcare
professional immediately. If it does not match how
you feel, repeat the test and see Chapter 2, Testing
Your Blood Glucose. If this still does not match the
way you feel, run a control test with your control
solution and a new test strip. If the control result is
within the acceptable range, review the proper testing
procedure and repeat your blood glucose test with a
new test strip. If the E-53 error still appears for your
blood glucose test, your blood glucose result may be
extremely high and above the system’s reading range.
Contact your healthcare professional immediately.
If the control test result is not within the acceptable
range, see Chapter 3, Control Testing.
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