Self-Diagnosis; Diagnostic Code Table - Yamaha GX1800A Service Manual

Self-diagnosis

While the engine is running, the diagnostic codes "a" can be checked by pushing the "Hour Volt" but-
ton "b" for approximately 8 seconds.
TIP:
Because the multifunction meter cannot display more than 1 diagnostic code even if there are multi-
ple diagnostic codes, using the YDIS is recommended.

Diagnostic code table

○: Indicated
—: Not indicated
Code No.
01 Normal
13 Pulser coil *1
15 Engine temperature sensor
17 Knock sensor
19 Battery voltage
23 Air temperature sensor *2
24 Cam position sensor
29 Air pressure sensor *3
47 Slant detection switch
55 Steering sensor
65 EX. manifold water temp sensor *4
78 Reverse switch *5
112, 113, 114,
115, 116, 117,
118, 119, 121,
122, 123, 129, ETV system
136, 137, 138,
139, 141, 142,
143, 144, 145
b
Item
13
a
Diagnostic code output
Multifunction
meter
Diagnosis
○
—
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○
YDIS
Diagnosis
record
—
○ ○
○ ○
○ ○
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○ ○
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