Suzuki FL125S Service Manual page 309

SELF-DIAGNOSTIC PROCEDURES
NOTE:
* Do not disconnect the coupler from ECM, battery cable from
battery, ECM ground wire from engine or main fuse before
confirming the DTC (Diagnostic Trouble Code) stored in mem-
ory. Such disconnection will erase the memorized information
in ECM memory.
* DTC stored in ECM memory can be checked by the special
tool.
* Before checking DTC, read SELF-DIAGNOSIS FUNCTION
"USER MODE and DEALER MODE" ( # 8-29 and 30) care-
fully to have good understanding as to what functions are avail-
able and how to use it.
* Be sure to read "PRECAUTIONS IN SERVICING" ( # 8-12)
before inspection and observe what is written there.
• Remove the battery box lid. (#6-9)
• Connect the special tool to the dealer mode coupler at the wir-
ing harness and start the engine or crank the engine for more
than 4 seconds.
• Turn the special tool's switch ON and check the malfunction
code to determine the malfunction part.
$ 09930-82720: Mode select switch
FL125SDW 8-34