FI SYSTEM DIAGNOSIS 12-19
FI SYSTEM TROUBLESHOOTING
VISUAL INSPECTION
Prior to diagnosis using the FI indicator light assy, perform the following visual inspections. The reason for
visual inspection is that mechanical failures (such as oil leakage) cannot be displayed on the FI indicator
light assy.
* Engine oil level and leakage (2-12)
* Engine coolant level and leakage (2-18, -19)
* Fuel level and leakage
* Clogged air cleaner element
* Throttle cable play (2-21)
* Exhaust gas leakage and noise
* Each coupler disconnection
* Clogged radiator fins (14-5)
SELF-DIAGNOSTIC PROCEDURES
NOTE:
* Do not disconnect the ECM coupler or battery lead wire before
checking the DTC (Diagnostic Trouble Code). Such discon-
nection will erase the DTC.
* DTC can be checked by the FI indicator light assy.
* Before checking DTC, read SELF-DIAGNOSIS FUNCTION
(12-16) carefully to have good understanding of the func-
tions available and how to use them.
* Be sure to read “PRECAUTIONS IN SERVICING” (12-3)
before inspection and observe what is written there.
• Connect the FI indicator light assy 2 to the mode select cou-
pler 1 on the wiring harness.
• Connect a 12 volt battery to the service coupler 3 using the
battery lead wire 4.
• Depress the kick starter lever at least ten times or run the
engine for more than 3 seconds.
• Check the DTC to determine the malfunction part.
36380-28H00: FI indicator light assy (option)
36890-28H00: Battery lead wire (option)
NOTE:
ECM detects the malfunction part by the cranking or the engine
start.
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