Self-Diagnosis; Diagnosing The Electronic Control System - Yamaha F80B Service Manual

Self-diagnosis

Diagnosing the electronic control
system
1. Connect the special service tool to the
outboard motor as shown.
L/W
NOTE:
When performing this diagnosis, all of the
electrical wires must be properly connected.
Diagnostic flash indicator B:
90890-06865
2. Start the engine and let it idle.
3. Check the flash pattern of the special
service tool to determine if there are any
malfunctions.
• Normal condition
(no defective part or irregular process-
ing is found)
• Single flash is given every 4.95 sec-
onds.
a: Light on, 0.33 second
b: Light off, 4.95 seconds
6D93G11
• Trouble code indication
Example: The illustration indicates
code number 23.
a: Light on, 0.33 second
b: Light off, 4.95 seconds
c: Light off, 0.33 second
d: Light off, 1.65 seconds
S6D89030
Electrical systems / Self-diagnosis
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