ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 290)

8-6 IETG FlowHawk Manual
Proper location to contact magnet on GSM Module
Note: The GSM module will not initiate the diagnostic
code sequence while codes representing monitor activity
are displaying in the window. Therefore, always verify
that the LED window is blank before attempting to activate
the code sequence. In addition, make sure the LED
window is in clear view before initiating the code
sequence.