Yamaha Waverunner VXS VX1800 Service Manual page 302

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Diag-
nostic
Item
code
117
118
ETV system
119
121
ETV system
122
ETV system
123
ETV system
124
125
TPS
127
128
126
TPS
129
ETV
131
132
APS
133
134
135
APS
Symptom
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Engine speed is limited
Checking steps
Check the ETV coupler termi-
nals for corrosion and rust.
Check the green (G) and blue
(L) ETV leads for continuity.
Check the ECM circuit for con-
tinuity.
Cross-check the ECM or re-
place.
Cross-check the ETV.
Check the ETV relay and fuse
(ETV relay) for continuity.
Check the ECM circuit for con-
tinuity.
Check the pink (P), orange
(O), pink/black (P/B), and
black/orange (B/O) ETV leads
for continuity.
Check the ECM circuit for con-
tinuity.
Check the TPS output voltage
using the YDIS.
Check the ECM circuit for con-
tinuity.
Check the TPS output voltage
using the YDIS.
Check the ETV relay and fuse
(ETV relay) for continuity.
Check the APS output voltage
using the YDIS.
Check the APS circuit for con-
tinuity.
Check the APS circuit for con-
tinuity.
9-11
Engine unit troubleshooting
See
page
4-7
A-2
7-27
7-3
7-22
7-31
7-27
A-2
7-27
7-18
7-27
7-18
7-3
7-22
7-20
7-21
7-21

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