Yamaha XSR 900 2022 Service Manual page 491

No. Item
241 O sensor
2
(Stuck at the
lower limit for
adjustment)
242 ISC
(Stuck at the up-
per limit for ad-
justment)
243 ISC
(Stuck at the
lower limit for
adjustment)
244 Poor starting/in-
ability to start
245 Engine stop
Symptom
During O feed-
2
back, the adjust-
ment is maintained
at the lower limit
During idling, the
adjustment is main-
tained at the upper
limit
During idling, the
adjustment is main-
tained at the lower
limit
Poor starting/inabili-
ty to start detected
Engine stop detect-
ed
9-85
EVENT CODE TABLE
Possible causes
• Open or short circuit
in the wire harness
between the sensor
and ECU
• Drop in fuel pressure
• Clogged injector
• Fault in sensor
• Malfunction in ECU
• Malfunction in the
fuel injection system
Idling engine speed is
slow
• Clogged throttle body
• Poorly adjusted
clutch cable
• Malfunction in the
fuel injection system
• Dirty or worn spark
plug
• Malfunction in the
battery
• Malfunction in ECU
Idling engine speed is
fast
• Poorly adjusted
clutch cable
• Malfunction in the
fuel injection system
• Dirty or worn spark
plug
• Malfunction in the
battery
• Malfunction in ECU
• No gasoline
• Malfunction in the
fuel injection system
• Dirty or worn spark
plug
• Malfunction in the
battery
• Malfunction in ECU
• No gasoline
• Poorly adjusted
clutch cable
• Malfunction in the
fuel injection system
• Dirty or worn spark
plug
• Malfunction in the
battery
• Malfunction in ECU
Note
• If a DTC is occurring,
respond to that first.
* Rarely, Code 241 oc-
curs even when the sys-
tem is functioning
properly.
• Implement diagnosis
mode D67, and check
the ISC maintenance
request.
• If a DTC is occurring,
respond to that first.
* Rarely, Code 242 oc-
curs even when the sys-
tem is functioning
properly.
• If a DTC is occurring,
respond to that first.
* Rarely, Code 243 oc-
curs even when the sys-
tem is functioning
properly.
• If a DTC is occurring,
respond to that first.
* Rarely, Code 244 oc-
curs even when the sys-
tem is functioning
properly.
• If a DTC is occurring,
respond to that first.
* Rarely, Code 245 oc-
curs even when the sys-
tem is functioning
properly.