Yamaha Tenere 700 2020, Service Manual

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SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
9-6
P0601 Faulty ECU memory.
(When this malfunc-
tion is detected in the
ECU, the fault code
number might not ap-
pear on the tool dis-
play.) • Malfunction in ECU. Engine cannot be
started.
Engine response is
poor.
Loss of engine power. Engine cannot be
started.
Ignition and injection
are not carried out.
Judgment for other
fault codes is not car-
ried out.
Writing to EEPROM is
not carried out.
Load control is not
carried out. (The relay
unit, headlight relay,
and other relays are
all turned off.)
The CO adjustment
mode and diagnostic
mode cannot be acti-
vated.
Output is restricted.
P062F EEPROM fault code
number (an error is
detected while read-
ing or writing on EE-
PROM) • CO adjustment val-
ue is not properly
written.
• ISC learning value is
not properly written.
• OBD memory value
is not properly writ-
ten.
• Malfunction in ECU.
Increased exhaust
emissions.
Engine cannot be
started or is difficult to
start.
Engine idling speed is
unstable.
OBD memory value is
not correct. CO adjustment value
for the faulty cylinder
= 0 (default value)
ISC learning values =
Default values
OBD memory value is
initialized.
P0657 Fuel system voltage
(incorrect voltage sup-
plied to the fuel injec-
tor and fuel pump) • Open or short cir-
cuit in wire harness
between relay unit
and ECU.
• Open circuit in wire
harness between
battery and ECU.
• Defective relay unit.
• Malfunction in ECU.
Engine is difficult to
start.
Increased exhaust
emissions. Monitor voltage = 12
[V]
O
2
feedback is not
carried out.
P1601 Sidestand switch
(open or short circuit
of the black/red lead
of the ECU is detect-
ed) • Defective coupler
between relay unit
and ECU.
• Open or short cir-
cuit in wire harness
between relay unit
and ECU.
• Defective coupler
between sidestand
switch and relay
unit.
• Open or short cir-
cuit in wire harness
between sidestand
switch and relay
unit.
• Defective sidestand
switch.
• Malfunction in ECU.
Engine cannot be
started. Engine is forcefully
stopped (the injector
output is stopped).
Fault code
No.
Item
Probable cause of
malfunction
Vehicle symptom
Fail-safe system op-
eration