Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1245

13A-108
Item Inspection Drive contents
No. item
21 Fan Radiator fan
controller motor is
driven.
36 Secondary Solenoid valve
air control turns from
solenoid OFF to ON.
valve
37 Condenser Condensor
fan (HI) fan motor is
driven.
38 Condenser Second air
fan (LOW) control
solenoid valve
Needle-nosed wire probe
MPI -
Troubleshooting
Inspection contents
Ignition switch: "ON"
Ignition switch: "ON"
Ignition switch: "ON"
Ignition switch: "ON"
CHECK AT THE ENGINE-ECU TERMINALS
TERMINAL VOLTAGE CHECK CHART
1. Connect a needle-nosed wire probe (test harness:
MB991223 or paper clip) to a voltmeter probe.
2. Insert the needle-nosed wire probe into each of the
engine-ECU connector terminals from the wire side, and
measure the voltage while referring to the check chart.
NOTE
(1) Make the voltage measurement with the engine-ECU
connectors connected.
(2) You may find it convenient to pull out the engine-ECU
to make it easier to reach the connector terminals.
(3) The checks can be carried out off the order given
in the chart.
Caution
Short-circuiting the positive (+) probe between a
connector terminal and earth could damage the
vehicle wiring, the sensor, engine-ECU or all of them.
Be careful to prevent this!
3. If voltmeter shows any division from standard value, check
the corresponding sensor, actuator and related electrical
wiring, then repair or replace.
4. After repair or replacement, recheck with the voltmeter
to confirm that the repair has corrected the problem.
Normal condition Inspection
procedure
No.
Fan motor rotates Procedure
at high speed. No. 24
Sound of opera- Procedure
tion can be heard No. 29
when solenoid
valve is driven.
Fan motor rotates Procedure
at high speed. No. 25
Fan motor rotates
at low speed.
Reference
page
13A-87
13A-96
13A-89