– 55 –
FI
41
Open or short circuit is detected in the
lean angle cut-off switch.
• Open or short circuit in wire harness
• Defective lean angle cut-off switch
• Disconnected lean angle cut-off switch coupler
• Malfunction in ECU
08
42
No normal signals are received from
the speed sensor or an open or short
circuit is detected in the neutral
switch.
• Open or short circuit in wire harness
• Defective speed sensor
• Disconnected speed sensor coupler
• Malfunction in vehicle speed sensor detected unit
• Defective neutral switch
• Disconnected neutral switch connector
• Malfunction in the engine side of the neutral switch
• Malfunction in ECU
07
21
43
Power supply to the injector and fuel
pump is not normal. (The ECU is
unable to monitor the battery voltage.)
• Open circuit in wire harness
• Malfunction in ECU
• Defective fuel injection system relay
09, 50
44
An error is detected while reading or
writing on EEPROM.
• Malfunction in ECU (The CO adjustment value is not
properly written on or read from the internal memory.)
60
46
Power supply to the fuel injection sys-
tem relay is not normal.
• Open circuit in wire harness
• Malfunction in rectifier/regulator
• Malfunction in A.C. magneto rotor
Refer to “CHARGING SYSTEM” in chapter 8.
(Manual No.: 5VK1-AE1)
09
50
Faulty ECU memory. When this mal-
function is detected, the code number
might not appear on the meter.
• Malfunction in ECU (The program and data are not prop-
erly written on or read from the internal memory.)
—
Er-1
No signals are received from the
ECU.
• Open or short circuit in sub-wire harness
• Disconnected ECU coupler
• Malfunction in meter
• Malfunction in ECU
—
Er-2
No signals are received from the ECU
within the specified duration.
• Improper connection in sub-wire harness
• Disconnected ECU coupler
• Malfunction in meter
• Malfunction in ECU
—
Er-3
Data from the ECU cannot be
received correctly.
• Improper connection in sub-wire harness
• Disconnected ECU coupler
• Malfunction in meter
• Malfunction in ECU
—
Er-4
Non-registered data has been
received from the meter.
• Improper connection in sub-wire harness
• Disconnected ECU coupler
• Malfunction in meter
• Malfunction in ECU
—
Fault
code No.
Symptom
Probable cause of malfunction
Diagnostic code