Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
219
S/N
Step
Check result
Subsequent step
valve at 20
is between 22
Ω
and 30
Ω
by the multimeter.
℃
No
Replace the
control valve
Yes
Diagnosis help
5
Check if the voltage between Pin 1# of the canister control valve
connector and the negative pole of power source is about 3.7V by the
multimeter.
No
Next step
Yes
Repair or replace
the harness
6
Check if the circuit connecting Pin 2# of canister control valve
connector to Pin 37# of ECU is open.
No
Diagnosis help
Fault code: P0458 “the voltage of control circuit of canister control valve is too low”
S/N
Step
Check result
Subsequent step
1
Connect the diagnosis device and adapter, and turn the ignition switch
to ON position.
Next step
Yes
To Step 4
2
Unplug the connector of canister control valve on the harness, and
check if the voltage between Pin 1# of this connector and the negative
pole of power source is about 12V by the multimeter.
No
Next step
Yes
Repair or replace
the harness
3
Check if the circuit of power supply side of canister control valve is
open or short to ground.
No
To Step 2
Yes
Next step
4
Check if the resistance between Pins 1# and 2# of the canister control
valve at 20
is between 22
Ω
and 30
Ω
by the multimeter.
℃
No
Replace the
control valve
Yes
Diagnosis help
5
Check if the voltage between Pin 1# of the canister control valve
connector and the negative pole of power source is about 3.7V by the
multimeter.
No
Next step
Yes
Repair or replace
the harness
6
Check if the circuit connecting Pin 2# of canister control valve
connector to Pin 37# of ECU is short to ground.
No
Diagnosis help
Fault code: P0459 “the voltage of control circuit of canister control valve is too high”
S/N
Step
Check result
Subsequent step
1
Connect the diagnosis device and adapter, and turn the ignition switch
to ON position.
Next step
Yes
To Step 4
2
Unplug the connector of canister control valve on the harness, and
check if the voltage between Pin 1# of this connector and the negative
pole of power source is about 12V by the multimeter.
No
Next step
Yes
Repair or replace
the harness
3
Check if the circuit of power supply side of canister control valve is
open or short to ground.
No
To Step 2
Yes
Next step
4
Check if the resistance between Pins 1# and 2# of the canister control
valve at 20
is between 22
Ω
and 30
Ω
by the multimeter.
℃
No
Replace the
control valve
Yes
Diagnosis help
5
Check if the voltage between Pin 1# of the canister control valve
connector and the negative pole of power source is about 3.7V by the
multimeter.
No
Next step