Yamaha XV19SX(C) Service Manual page 396

7. Check the crankshaft position sen-
sor.
Refer to "CHECKING THE CRANK-
SHAFT POSITION SENSOR" on
page 7-84.
OK ↓
8. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 7-71.
OK ↓
9. Check the engine stop switch.
Refer to "CHECKING THE
SWITCHES" on page 7-71.
OK ↓
10.Check the neutral switch.
Refer to "CHECKING THE
SWITCHES" on page 7-71.
OK ↓
11.Check the sidestand switch.
Refer to "CHECKING THE
SWITCHES" on page 7-71.
OK ↓
12.Check the relay unit (diode).
Refer to "CHECKING THE DI-
ODES" on page 7-81.
OK ↓
13.Check the lean angle sensor.
Refer to "CHECKING THE LEAN
ANGLE SENSOR" on page 7-85.
OK ↓
14.Check the entire ignition system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 7-1.
OK ↓
Replace the ECU.
NG →
Replace the crankshaft position sensor.
NG →
Replace the main switch.
NG →
The engine stop switch is faulty. Replace
the right handlebar switch.
NG →
Replace the neutral switch.
NG →
Replace the sidestand switch.
NG →
Replace the relay unit.
NG →
Replace the lean angle sensor.
NG →
Properly connect or repair the ignition sys-
tem wiring.
7-5
IGNITION SYSTEM