Yamaha R15 2022 Service Manual page 381

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code
no.
Internal malfunction in ECU. (When this mal-
"P0601" function is detected in the ECU, the fault code
might not appear on the tool display.)
EEPROM fault code: an error is detected
"P062F"
while reading or writing on EEPROM.
Normal signal is not received from the sides-
"P1601"
tand switch.
Fuel system voltage: normal voltage is not
"P0657"
supplied to the fuel injector and fuel pump.
Malfunction in ECU internal circuit (malfunc-
tion of ECU power cut-off function).
"P1602"
Normal backup power is not supplied to the
ECU.
[P1604] Lean angle sensor : short to ground
"P1604, circuit is detected.
P1605" [P1605] Lean angle sensor : open or short to
power circuit is detected.
Normal signal is not received from the rear
"P2158"
wheel sensor.
Normal signal is not received from the VVA
"P2645"
solenoid circuit while driving the VVA solenoid.
COMMUNICATION ERROR WITH THE YAMAHA DIAGNOSTIC TOOL
Fault code
no.
Meter communication error due to ECU inter-
Er-1
nal malfunction (Output signal error)
Meter communication error due to ECU inter-
Er-2
nal malfunction (Output signal error)
Meter communication error due to ECU inter-
Er-3
nal malfunction (Output signal error)
Meter communication error due to ECU inter-
Er-4
nal malfunction (Input signal error)
Symptom
Symptom
8-48
Fail-safe system
Starting the Driving the
engine vehicle
Unable Unable
Able Able
Unable Unable
Able Able
Able Able
Unable Unable
Able Able
Able Able
Fail-safe system
Starting the Driving the
engine vehicle
Able Able
Able Able
Able Able
Able Able
ELEC – +
Diagnostic
code
—
60
20
09
—
08
—
45
Diagnostic
code
—
—
—
—