Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1184

Code No. P1104 Waste gate solenoid valve system
Inspection Range
D Battery voltage is more than 10 V.
Evaluation Conditions
D Solenoid coil's surge voltage (battery voltage +2 V) is not detected when the
waste gate solenoid valve turned from ON to OFF.
MUT-II Actuator Test
D No. 12: Waste gate solenoid valve
OK: Operation sound is heard,
and there is vibration.
NG
Check the following connector: B-36
OK
Measure at the B-36 waste gate
solenoid valve connector.
D Disconnect the connector to
measure at the solenoid valve
side.
D Resistance between terminal No.
1 and terminal No. 2
OK: 29 - 35 Ω (at 20_C)
OK
Measure at the B-36 waste gate
solenoid valve connector.
D Disconnect the connector to
measure at the harness side.
D Ignition switch: ON
D Voltage between terminal No. 1
and earth
OK: System voltage
OK
Measure at the C-126 engine-ECU
connector.
D Disconnect the connector to
measure at the harness side.
D Ignition switch: ON
D Voltage between terminal No. 11
and earth
OK: System voltage
OK
Check the following connector: C-126
OK NG
Check the harness between the
waste gate solenoid valve and
engine-ECU.
D Check for damage of the output
cable.
OK NG
Check the harness between the
waste gate solenoid valve and
engine control relay.
D Check for damage of the power
cable.
OK
MUT-II Actuator Test
D No. 12: Waste gate solenoid
valve
OK: Operation sound is heard,
and there is vibration.
NG
Replace the engine-ECU.
MPI -
Troubleshooting
OK
Intermittent malfunction (Refer to
GROUP 00 - Points to Note for
Intermittent Malfunctions.)
NG
Repair
NG
Replace the waste gate solenoid
valve.
NG
Check the following connector:
B-11X
Check and repair the harness between
the waste gate solenoid valve and
engine control relay.
D Check for disconnection and
short-circuit of the power cable.
NG
Check the following connector: C-39
Check the harness between the
waste gate solenoid valve and
engine-ECU.
D Check for disconnection and
short-circuit of the output cable.
Repair
Repair
NG
Repair
OK
Intermittent malfunction (Refer to
GROUP 00 - Points to Note for
Intermittent Malfunctions.)
Probable cause
D Waste gate solenoid valve malfunction
D Engine-ECU malfunction
NG
OK
OK
NG
OK
13A-47
Repair
Repair