Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1201

13A-64
From the previous page
OK
MUT-II Data list
D No. 59: Oxygen sensor (rear)
(Refer to P.13A-105.)
OK
Measure at the C-115 and C-126
engine-ECU connectors.
D Measure the engine-ECU terminal
voltage.
(1) Voltage between terminal No. 80
and earth
OK: System voltage
(2) Voltage between terminal No. 13
and earth
Voltage between terminal No. 26
and earth
(Ignition switch: ON)
OK: 0.5 V or less
OK
Measure at the C-40 engine-ECU
connector.
D Measure the engine-ECU terminal
voltage.
D Engine: Idling (after warm-up)
D Radiator fan: Stopped
D Voltage between terminal No. 33
and earth
OK: Voltagerises 0.2 to 3.5 V when
headlamp is turned OFF and
ON.
D Voltage between terminal No. 41
and earth
OK: Voltagedropswhenheadlamp
is turned OFF and ON.
OK
Measure at the C-39 engine-ECU connector.
D Measure the engine-ECU terminal voltage.
D Engine: Idling
D A/C switch: ON (A/C compressor driven state)
D Voltage between terminal No .24 and earth
(A/C setting temperature: Minimum temperature)
(Air volume: Maximum)
OK: 1 V or less
(A/C setting temperature: indoor temperature)
(Air volume: Minimum)
OK: System voltage
OK
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MPI -
Troubleshooting
NG
(1) NG
Check the following connectors:
C-115, C-129, C-05, C-135
Check the harness between the
engine-ECU and battery.
D Check for disconnection,
short-circuit and damage of the
power cable.
Check the trouble symptoms.
Replace the engine-ECU.
(2) NG
Check the following connector:
C-39
Check the harness between the
engine-ECU and earth joint.
D Check for disconnection and
damage of the earth cable.
NG
Check the following connectors:
C-40, B-21, B-03
Check the harness between the
alternator and engine-ECU.
D Check for disconnection,
short-circuit and damage of the
output cable.
Check the trouble symptoms.
Replace the alternator.
NG
Check the Code No. P0136: Oxygen sensor (rear) system.
(Refer to P.13A-27.)
NG
OK
NG
OK
OK
NG
NG
OK
NG
OK
NG
OK
OK
NG
Check the Inspection Procedure 28: A/C load signal system.
(Refer to P.13A-95.)
Repair
Repair
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
Repair
Repair
Repair
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)