Yamaha TMAX 2020 Service Manual page 523

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
P0606 Internal malfunction
in ECU. (When this
malfunction is de-
tected in the ECU,
the DTC might not
appear on the tool
display.)
P062F EEPROM DTC: an
error is detected
while reading or
writing on EE-
PROM.
Probable cause of
malfunction
• Malfunction in
ECU.
• CO adjustment
value is not prop-
erly written.
• ISC learning value
is not properly writ-
ten.
• O feedback learn-
2
ing value is not
properly written.
• OBD memory val-
ue is not properly
written.
• Malfunction in
ECU.
9-49
Vehicle symptom
Engine cannot be
started.
Engine response is
poor.
Loss of engine pow-
er.
Increased exhaust
emissions.
Engine cannot be
started or is difficult
to start.
Engine idling speed
is unstable.
OBD memory value
is not correct.
Fail-safe system
operation
Engine cannot be
started.
Ignition and injec-
tion are not carried
out.
Judgment for other
DTCs is not carried
out.
Load control is not
carried out. (The
fuel injection system
relay, headlight re-
lay (dimmer), and
other relays are all
turned off.)
The CO adjustment
mode and diagnos-
tic mode cannot be
activated.
Output is restricted.
Cruise control sys-
tem cannot be oper-
ated.
CO adjustment val-
ue for the faulty cyl-
inder = 0 (default
value)
ISC learning values
= Default values.
OBD memory value
is initialized.
Initialization of O
2
feedback learning
value.
Cruise control sys-
tem cannot be oper-
ated.