7-10
FI
FUEL INJECTION SYSTEM
46
Power supply to the fuel
injection system is not nor-
mal.
• Malfunction in the charging system. (Refer to “CHARGING SYS-
TEM” in CHAPTER 8.)
—
50
Faulty ECU memory. (When
this malfunction is detected in
the ECU, the fault code num-
ber might not appear on the
meter.)
• Malfunction in ECU. (The program and data are not properly
written on or read from the internal memory.)
—
65
Knock sensor: open or short
circuit detected.
• Open or short circuit in wire harness.
• Defective knock sensor.
• Malfunction in ECU.
• Improperly installed knock sensor.
—
81
Grip warmer: open or short
circuit detected.
• Open or short circuit in wire harness.
• Defective grip warmer.
• Malfunction in ECU.
26
83
Thumb warmer: short circuit
detected.
• Short circuit in wire harness.
• Defective thumb warmer.
• Malfunction in ECU.
27
84
Conditions requiring T.O.R.S.
operation are detected.
• 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.
01
07
24
85
Oil pressure switch: open cir-
cuit detected.
• Open circuit in wire harness.
• Defective oil pressure switch.
• Malfunction in ECU.
—
88
Drive position switch: short
circuit detected.
• Short circuit in gear motor sub-wire harness.
• Short circuit in wire harness.
• Defective drive position switch.
• Malfunction in ECU.
• Improperly installed drive position switch.
—
Reverse position switch:
short circuit detected.
• Short circuit in gear motor sub-wire harness.
• Short circuit in wire harness.
• Defective reverse position switch.
• Malfunction in ECU.
• Improperly installed reverse position switch.
Er-1
No signals are received from
the ECU.
• Open or short circuit in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
• Defective wire connection of the ECU coupler.
—
Er-2
No signals are received from
the ECU within the specified
duration.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
—
Er-3
Data from the ECU cannot be
received correctly.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
—
Er-4
Non-registered data has been
received from the meter.
• Improper connection in wire harness.
• Malfunction in speedometer unit.
• Malfunction in ECU.
—
Fault
code No.
Symptom
Probable cause of malfunction
Diagnostic code No.