Table of Contents
Fault code No.
Item
1
Connection of lean angle sensor
coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
2
Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
3
Wire harness continuity.
3-1
1. Lean angle sensor
2. ECU
3. Sensor input lead
4. Sensor output lead
5. Sensor ground lead
3-2
Disconnect the ECU coupler from the ECU.
Disconnect the lean angle sensor coupler from the lean angle sensor.
P1604, P1605
[P1604] Lean angle sensor: ground short circuit detected.
[P1605] Lean angle sensor: open or power short circuit detected.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
1
3
L
4
Y/G
5
B/L
8-69
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 2.
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 3.
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is "Recover" → Go to
item 6 and finish the service.
Condition is "Malfunction" → Go
to item 4.
2
5V
L
Y/G
B/L
Chapters
Table of Contents
Troubleshooting
