Mitsubishi FUEL User Manual

MPI <4G6> -
Troubleshooting
13A-38
Code No. P0443 Purge control solenoid valve system Probable cause
Range of Check
D
Ignition switch: ON
D
Battery voltage is 10 V or more.
Set Conditions
D
The solenoid coil surge voltage (battery voltage + 2 V) is not detected when
the purge control solenoid valve is turned from on to off.
D
Malfunction of the purge control solenoid valve
D
Open or short circuit in the purge control solenoid
valve circuit or loose connector contact
D
Malfunction of engine-ECU <M/T>
D
Malfunction of engine-A/T-ECU <A/T>
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
OK
Check the trouble symptoms.
OK
NG
Repair
Check the harness wires between
the purge control solenoid valve and
the engine control relay, and
between the purge control solenoid
valve and the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
OK
Check the following connector:
C-34 <M/T>, C-177 <A/T>
NG
Repair
OK
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Repair
OK
NG
Check the harness wire between the
purge control solenoid valve and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
Check the following connector:
C-34 <M/T>, C-177 <A/T>
NG
Repair
OK
Measure at engine-ECU connector
C-34 <M/T> or engine-A/T-ECU
connector C-177 <A/T>.
D
Measure the voltage at the
engine-ECU terminal <M/T> or
engine-A/T-ECU terminal <A/T>.
D
Ignition switch: ON
D
The voltage between terminal 9
<M/T>, 34 <A/T> and earth
OK:
System voltage
NG
Check the harness wire between the
purge control solenoid valve and the
engine control relay, and repair if
necessary.
NG
Check the following connector:
C-31
NG
Repair
OK
Measure at the purge control
solenoid valve connector B-04.
D
Disconnect the connector and
measure at the harness side.
D
Ignition switch: ON
D
The voltage between terminal 2
and earth
OK:
System voltage
OK
Check the following connector:
B-04
NG
Repair
NG
Measure at the purge control
solenoid valve connector B-04.
D
Disconnect the connector, and
measure at the solenoid valve
side.
D
The resistance between terminals
1 and 2
OK:
28 - 36
W
(at 20
_
C)
NG
Replace
MUT-
II
Actuator Test
08 Purge control solenoid valve
OK:
Operating sound can be
heard and the valve vibrates.
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)

Mitsubishi FUEL Specifications

General

Brand	Mitsubishi
Model	FUEL
Category	Automobile Accessories
Language	English