Yamaha Phazer Venture Lite PZ50MTA 2011 Supplementary Service Manual page 28

Fault
Symptom
code No.
No normal signals are
42 received from the speed sen-
sor.
ECU is unable to monitor the
battery voltage (an open or
43
short circuit in the line to the
ECU).
Error is detected while reading
44 or writing on EEPROM (CO
adjustment value).
Power supply to the fuel injec-
46
tion system is not normal.
Faulty ECU memory. (When
this malfunction is detected in
50 the ECU, the fault code num-
ber might not appear on the
meter.)
Knock sensor: open or short
circuit detected.
65
Oil pressure sensor malfunc-
tion: open or short circuit
67
detected
Conditions requiring T.O.R.S.
operation are detected.
84
Oil pressure switch: open cir-
85 cuit detected.
No signals are received from
the ECU.
Er-1
No signals are received from
Er-2 the ECU within the specified
duration.
Data from the ECU cannot be
Er-3 received correctly.
Non-registered data has been
Er-4 received from the meter.
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Open or short circuit in wire harness.
• Defective speed sensor.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in ECU.
• Malfunction in ECU. (The CO adjustment value is not prop-
erly written on or read from the internal memory.)
• Malfunction in the charging system. (Refer to "CHARGING
SYSTEM" in CHAPTER 8.)
• Malfunction in ECU. (The program and data are not properly
written on or read from the internal memory.)
• Open or short circuit in wire harness.
• Defective knock sensor.
• Malfunction in ECU.
• Improperly installed knock sensor.
• Open or short circuit in wire harness.
• Defective oil pressure sensor.
• Malfunction in ECU.
• Improperly installed oil pressure sensor.
• Open or short circuit in wire harness.
• Defective throttle position sensor.
• Defective throttle switch.
• Defective speed sensor.
• Malfunction in ECU.
• Improperly installed throttle position sensor.
• Open circuit in wire harness.
• Defective oil pressure switch.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
• Defective wire connection of the ECU coupler.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
19
FI
Diagnostic
code No.
07
09
50
60
09
—
—
—
01
07
24
—
—
—
—
—