Yamaha Vmax VMX17C 2009 Service Manual page 495

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Checking method
Probable cause of malfunction
1 Connections
• Wire harness ECU coupler
• Main switch coupler
• Main fuse coupler
• Battery terminal
2 Faulty battery.
3 Malfunction in rectifier/regulator
4 Open or short circuit in wire harness.
Reinstatement method
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Checking method
46
Power supply to the fuel injection system is not normal.
Able to start engine
Able to drive vehicle
—
—
—
• 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.
• Replace or charge the battery.
Refer to "CHECKING AND CHARGING THE
BATTERY" on page 8-126.
• Replace if defective.
Refer to "CHARGING SYSTEM" on page 8-13.
• Repair or replace if there is an open or short
circuit.
• Between battery terminal and main fuse cou-
pler.
(red–red)
• Between main fuse coupler and main switch
coupler.
(red–red)
• Between main switch coupler and ECU cou-
pler.
(brown–red/white)
Starting the engine and operating it at idle.
50
Faulty ECU memory. (When this malfunction is detected in the
ECU, the fault code number might not appear on the meter.)
Unable to start engine
Unable to drive vehicle
—
—
—
8-62
FUEL INJECTION SYSTEM
Check or maintenance job