Yamaha WaveRunner FZR-GX1800 Service Manual page 388

TRBL
SHTG
Diagnos-
Item
tic code
Electronic
throttle
123
(*1)
system
malfunction
124 Throttle
125 position
127 sensor
128 malfunction
Throttle
position
126
sensor
malfunction
Electronic
throttle
129
(*1)
system
malfunction
131 Accelerator
132 position
133 sensor
134 malfunction
Accelerator
position
135
sensor
malfunction
(*1)
: Throttle body assembly
WD: Refer to the wiring diagram.
Engine unit troubleshooting
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
Checking steps
1. Check the ETV relay and fuse (ETV
relay) for continuity.
2. Check the ECM circuit for continuity.
1. Check the pink (P), orange (O), pink/
black (P/B), and black/orange (B/O)
throttle body assembly wiring harness
leads for continuity.
2. Check the ECM circuit for continuity.
1. Check the TPS output voltage using
the YDIS.
2. Check the ECM circuit for continuity.
1. Check the TPS output voltage using
the YDIS.
2. Check the ETV relay and fuse (ETV
relay) for continuity.
1. Check the APS output voltage using
the YDIS.
2. Check the APS circuit for continuity.
3. Measure the APS 1 and 2 resistance.
1. Measure the APS 1 and 2 resistance.
2. Check the APS circuit for continuity.
9-13
E
Refer
to
page
7-33 1
7-44
7-38
WD
2
7-38
7-26
3
7-38
7-26
7-33
4
7-44
7-29
7-29
7-29
5
7-29
7-29
6
7
8