Yamaha 2012 TMAX XP500A Service Manual page 435

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
d:09
Procedure
Actuation
d:50
Procedure
Item/components and
probable cause
1 Connection of fuel injection
system relay coupler
Check the connection of the
coupler is secure.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
2 Connection of wire harness
ECU coupler
Check the connection of the
coupler is secure.
Disconnect the coupler, and
check each pin (for bending,
wear, or locking).
3 Continuity of wire harness
between the battery, main
fuse, fuel injection system
fuse, fuel injection system
relay and ECU
4 Fuel injection system relay
malfunction
43
Fuel system voltage: incorrect voltage supplied to the fuel injector
and fuel pump.
Able to start engine
Able to drive vehicle
d:09, d:50
Fuel system voltage (battery voltage)
Approximately 12.0
Set the engine stop switch to "
measured battery voltage with the meter display value. (If the actu-
ally measured battery voltage is low, recharge the battery.)
Actuates the fuel injection system relay five times at one-second
intervals.
Illuminates the engine trouble warning light.
Check that the fuel injection system relay is actuated five times by
listening for the operating sound.
Check or maintenance job
Poor connection → Connect it
securely, or repair/replace the
wire harness.
Poor connection → Connect it
securely, or repair/replace the
wire harness.
Open or short circuit →
Replace the wire harness.
Red–Red
Red/blue–Red/blue
Check in the diagnostic mode
(Code No. d:50).
No operation sound of fuel
injection system relay is
heard. → Replace the fuel
injection system relay.
FUEL INJECTION SYSTEM
", and then compare the actually
8-60
Sensor inspection proce-
dure
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start and idle the engine for
approximately 5 seconds.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.