7 - 24
FI
FUEL INJECTION SYSTEM
Fault code No.
Er-2
Symptom
No signals are received from the ECU within the specified duration.
Used diagnostic code No.
–
–
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
Connected condition of connector
Inspect the coupler for any pins
that may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated if nor-
mal signal is
received from the
ECU when the
main switch is set
to ON.
2
Open or short circuit in wiring har-
ness and/or sub lead.
Repair or replace if there is an open or short circuit.
Between meter coupler and ECU coupler
yellow/blue
–
yellow/blue
3
Malfunction in meter
Replace the meter.
4
Malfunction in ECU
Replace the ECU.
Fault code No.
Er-3
Symptom
Data from the ECU cannot be received correctly.
Used diagnostic code No.
–
–
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
Connected condition of connector
Inspect the coupler for any pins
that may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated if nor-
mal signal is
received from the
ECU when the
main switch is set
to ON.
2
Open or short circuit in wiring har-
ness and/or sub lead.
Repair or replace if there is an open or short circuit.
Between meter coupler and ECU coupler
yellow/blue
–
yellow/blue
3
Malfunction in meter
Replace the meter.
4
Malfunction in ECU
Replace the ECU.
Fault code No.
Er-4
Symptom
Non-registered data has been received from the meter.
Used diagnostic code No.
–
–
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
Connected condition of connector
Inspect the coupler for any pins
that may have pulled out.
Check the locking condition of the
coupler.
If there is a malfunction, repair it and connect it
securely.
Main wiring harness ECU coupler
Sub-wire harness coupler
Reinstated if nor-
mal signal is
received from the
ECU when the
main switch is set
to ON.
2
Open or short circuit in wiring har-
ness and/or sub lead.
Repair or replace if there is an open or short circuit.
Between meter coupler and ECU coupler
yellow/blue
–
yellow/blue
3
Malfunction in meter
Replace the meter.
4
Malfunction in ECU
Replace the ECU.
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