Yamaha TMAX 2020 Service Manual page 516

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
EAS33028
SELF-DIAGNOSTIC FUNCTION TABLE (FOR FUEL INJECTION SYSTEM)
TIP
For details of the DTC, refer to "BASIC PROCESS FOR TROUBLESHOOTING" on page 9-16.
DTC Item
30_ Latch up detected.
EVENT
70_ Engine forcibly
EVENT stops when the ve-
hicle is left idling for
a long period.
P0030 O sensor heater:
2
defective heater
controller detected.
P00D1 O sensor: heater
2
performance deteri-
oration
Probable cause of
malfunction
• The vehicle has
overturned.
• Installed condition
of lean angle sen-
sor.
• Defective lean an-
gle sensor.
• Malfunction in
ECU.
• Allow to idle for a
long period of time.
• Malfunction in
ECU.
• Open or short cir-
cuit in wire har-
ness.
• Disconnected cou-
pler.
• Defective O sen-
2
sor heater control-
ler (Malfunction in
ECU).
• Broken or discon-
nected lead in O
2
sensor heater.
• Improperly in-
stalled O sensor.
2
• Defective coupler
between O sen-
2
sor and ECU.
• Open or short cir-
cuit in wire har-
ness between O
2
sensor and ECU.
• Incorrect fuel pres-
sure.
• Defective O sen-
2
sor.
• Malfunction in
ECU.
9-42
Vehicle symptom
–
–
(When the O sen-
2
sor does not oper-
ate because the
exhaust tempera-
ture is low)
Increased exhaust
emissions.
Fuel learning cannot
be carried out.
Increased exhaust
emissions.
Fail-safe system
operation
–
–
Display only (If the
O sensor does not
2
operate, O feed-
2
back is not carried
out.)
Cruise control sys-
tem cannot be oper-
ated.
O feedback is not
2
carried out.
O learning is not
2
carried out.
Cruise control sys-
tem cannot be oper-
ated.