Yamaha 2012 TMAX XP500A Service Manual page 422

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item/components and
probable cause
1 Connection of coolant tem-
perature sensor 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
4 Installation status of coolant
temperature sensor
Check the mounting section
for a loose or pinched mount-
ing.
5 Coolant temperature sensor
malfunction
21
Coolant temperature sensor: open or short circuit detected. (no nor-
mal signals are received from the coolant temperature sensor.)
Able to start engine
Able to drive vehicle
d:06
Displays the coolant temperature.
Compare the actually measured coolant temperature with the meter
display value.
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
Black/blue–Black/blue
Green/red–Green/red
Make sure that the mounting
position is correct.
Check in the diagnostic mode
(Code No. d:06).
During cold starting: A tem-
perature close to the ambient
temperature is indicated.
Indication is incorrect. →
Replace the coolant tempera-
ture sensor.
Sensor inspection procedure.
Refer to "CHECKING THE
COOLANT TEMPERATURE
SENSOR" on page 8-139.
FUEL INJECTION SYSTEM
8-47
Sensor inspection proce-
dure
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.