Yamaha VMAX 2009 Service Manual page 485

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Checking method
Probable cause of malfunction
1 The vehicle has overturned.
2 Installed condition of lean angle sensor.
3 Connections
• Lean angle sensor coupler
• Wire harness ECU coupler
4 Defective lean angle sensor.
Reinstatement method
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuator operation
Checking method
Probable cause of malfunction
1 Connections
• Cylinder-#1 ignition coil coupler
• Wire harness ECU coupler
• Ignition coil sub-wire harness 1 coupler
• Right handlebar switch coupler
30
Latch up detected.
No normal signal is received from the lean angle sensor.
Unable to start engine
Unable to drive vehicle
D:08
Lean angle sensor
• 0.4–1.4 (upright)
• 3.8–4.2 (overturned)
Remove the lean angle sensor and incline it more than 65 de-
grees.
• Raise the vehicle upright.
• Check the installed direction and condition of
the sensor.
• Check the coupler for any pins that may be
pulled out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect
the coupler securely.
• Execute the diagnostic mode. (Code No. D:08)
• Replace if defective.
Refer to "CHECKING THE LEAN ANGLE
SENSOR" on page 8-141.
Turning the main switch to "ON" (however, the engine cannot be
restarted unless the main switch is first turned "OFF").
33
Cylinder-#1 ignition coil: open or short circuit detected in the
primary lead of the cylinder-#1 ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
D:30
Actuates the cylinder-#1 ignition coil five times at one-second in-
tervals.
Illuminates the engine trouble warning light.
Check the spark five times.
• Connect an ignition checker.
• Check the coupler for any pins that may be
pulled out.
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect
the coupler securely.
8-52
FUEL INJECTION SYSTEM
Check or maintenance job
Check or maintenance job