Sym ATTILA RS-21 EFi 150 Service Manual page 73

4. FUEL INJECTION SYSTEM
Remarks:
a. Current DTC codes: It means that the problem onto EFI system is occurring. When the
problem is solved, the recorded will disappear.
b. Past DTC codes: It means that the problem onto the EFI system just occurred. The DTC
codes are recorded. Even the Current problem are solved and its DTC codes also have been
erased, the DTC codes still be recorded into the past DTC codes until turning off the ignition
switch so that the past DTC codes can be erased.
c. History DTC codes: It means that the problem onto the EFI system had been occurred. So,
the DTC codes were recorded. Unless with command to erase the problem history record, the
problem record will be kept continuously.
5. With the ▲▼ cursor to select "2. DTC Code Erase" (LCD background changed into black), (as fig
15), press "ENTER" key to erase the DTC codes (as fig 15-1, 16, 17). This function can be
conducted only when the ignition switch is turned on and the engine stopped. Press "EXIT" key to
back to the main menu.
Fig 15
Fig 16
6. With the ▲▼ cursor to select "3. Data analysis" (LCD background changed into black), (as fig
18), press "ENTER" key to enter into EFI data analysis. There are 8 instantly dynamic data
values shown on the menu. (1/7~7/7) (as fig 19, 20, 21, 22, 23, 24, 25, 26) Select desired
menu with ◄ ► cursor.
¡ · As the fig 19 (1/8) shown, the menu provides with 3 set dynamic values of engine rpm, intake
temperature & sensor's voltage, and engine temperature & sensor's voltage.
Fig 18
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Fig 15-1
Fig 17
Fig 19