1A-87 Engine General Information and Diagnosis:
3 1) Connect the ECM coupler. Refer to “ECM Removal and
Installation in Section 1C (Page 1C-1)”.
2) Turn the ignition switch ON.
3) Measure the voltage between the Bl wire “A” and
ground.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Voltage ( )
((+) terminal: Bl – (–) terminal: Ground)
Is the battery voltage?
Go to Step 4. Short circuit in the Bl
wire.
4 1) Check the GP switch. Refer to “Side-stand / Ignition
Interlock System Parts Inspection in Section 1I (Page 1I-
8)”.
Is it in good condition?
Replace the ECM with a
new one. Refer to “ECM
Removal and
Installation in Section
1C (Page 1C-1)”.
Replace the GP switch
with a new one. Refer to
“GP Switch Removal
and Installation in
Section 1C (Page 1C-
8)”.
Step Action Yes No
“A”
(A)
I944H1110183-02
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