Yamaha R15 2022, Service Manual

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8-83
FUEL INJECTION SYSTEM TROUBLESHOOTING
– + ELEC
3 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Turn the main switch to “ON”,
then to “OFF”, and then back to
“ON”.
Check the fault code using the
malfunction mode of the YDT.
Condition is “Recover”
→
Go to
item 6 and finish the service.
Condition is “Malfunction”
→
Go
to item 4.
3-1
1. Lean angle sensor
2. ECU
3. Sensor power supply 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.
3-3 [For P1604] Ground short circuit
Between lean angle sensor coupler and ground: yellow/green–ground
If there is continuity, replace the wire harness.
Fault code No. P1604, P1605
Item
[P1604] Lean angle sensor: short to ground circuit is detected.
[P1605] Lean angle sensor: open or short to power circuit is detected.
Y G /
B L /
L
Y G /
B L /
L
1
2
3
4
5
B/L Y/G
L
BCWF8197E0.book Page 83 Thursday, November 18, 2021 9:18 AM