Pgm-Fi Self-Diagnosis Information - Honda SH125 Manual

FUEL SYSTEM (Programmed Fuel Injection)
PGM-FI SELF-DIAGNOSIS
INFORMATION
SELF-DIAGNOSTIC PROCEDURE
Place the scooter on its center stand.
Turn the ignition switch to ON.
The malfunction indicator lamp (MIL) comes on for
a few seconds, then goes off.
Start the engine and let it idle.
NOTE:
If the engine control module (ECM) detects any
problem at the moment, the MIL will be follow-
ing status depending on the engine speed:
-
under 2,000 min-' (rpm), idle speed; the MIL
-
over 2,000 min~' (rpm), during riding; the MIL
If the MIL does not blink, the ECM has no problem
data.
If the MIL blinks, the PGM-FI system has a problem.
Confirm the problem either way as follows:
Read how many times the MIL blink. Determine
the cause of the problem (page 5-10).
Read the diagnosis trouble code (DTC) with the
Honda Diagnosis System (HDS) Pocket Tester.
Determine the cause of the problem (page 5-19).
To read the ECM memory of the MIL code or DTC,
perform the following:
brinks as detection item
turns on (stays lit)
MIL CODE
Remove the maintenance lid (page 2-4).
Turn the ignition switch to OFF.
Remove the dummy connector from the data link
connector (DLC).
Short the DLC terminals using the special tool.
TOOL:
DLC short
connector
07OPZ-ZY30100
Connection: Brown
-
Green
Turn the ignition switch to ON and check the MIL.
If the ECM has no problem data, the MIL will come
on and stay on.
If the ECM has problem data in its memory, the MIL
will start blinking.
Read and record how many times the MIL blinks,
and determine the cause of the problem (page 5-10).
5-7