SECTION IV- TWO KEY OPERATIONS
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These actions can create confusion for the user.
If the PIN option is enabled on this key, the following prompt appears:
***** FUELMASTER ***
** ENTER P.I.N. --->
Enter the PIN (Personal Identification Number) of the key on the FMU
keypad. This number is assigned to the key when it is encoded and is a 4-
digit number that is unique to the key. If the entry is incorrect, an error
message appears, the error is logged on the on-site printer and the
process begins again. Once the PIN is entered correctly, the next prompt
appears.
If the ODOMETER/CHRONOMETER option is enabled for this Vehicle
Key, the following prompt appears:
***** FUELMASTER *****
ENTER CHRONO/ODOMETER --->
What occurs next is very important and causes much confusion.
When the Vehicle Key is first inserted, the FMU looks at the
MILES/HOURS range that was encoded to the key. The FMU then looks
at the miles/hours that were entered and written back to the key during the
previous fueling transaction. The FMU then calculates the miles/hours
elapsed and compares it to the value just entered and sends the
appropriate prompt to the FMU display screen. One of the following three
messages will be displayed:
***** FUELMASTER *****
* ODOMETER TOO LOW! PLEASE TRY AGAIN. *
This error message indicates that the entry is lower than the entry that was
written to the key during the previous fueling transaction on this vehicle.
***** FUELMASTER *****
* ODOMETER TOO HIGH! PLEASE TRY AGAIN. *
This error message indicates that the entry has an elapsed miles or hours value
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