Intercooler Water Spray Lamp System - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

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Inspection Procedure 31

Intercooler water spray lamp system

The engine-ECU illuminates the intercooler water spray lamp when the
intercooler water spray switch (automatic) is ON.
Check whether intercooler water
spray lamp bulb is dead. (Refer to
GROUP 54 - combination meter.)
OK
Check the intercooler water spray
lamp illumination.
D Disconnect the C-122
engine-ECU connector, and earth
the terminal No. 35.
D Ignition switch: ON
OK: The intercooler water spray
lamp illuminates.
NG
Measure at the C-01 combination
meter connector.
D Disconnect the connector to
measure at the harness side.
D Ignition switch: ON
D Voltage between terminal No. 9
and earth
OK: System voltage
OK
Measure at the C-122 engine-ECU
connector.
D Disconnect the connector to
measure at the harness side.
D Ignition switch: ON
D Voltage between terminal No. 35
and earth
OK: System voltage
OK
Check the following connectors:
C-213, C-210, C-201, C-01, C-29
<L.H. drive vehicles>
OK
Check the harness between the
combination meter and ignition
switch.
D Check for damage of the power
cable.
OK
Check the following connectors:
C-02, C-122, C-130
OK
Check and repair the harness
between the combination meter and
engine-ECU.
D Check for damage of the signal
cable.
MPI -
Troubleshooting
NG
Replace the intercooler water spray
lamp.
OK
Check the Inspection Procedure 30:
Intercooler water spray circuit
system. (Refer to P.13A-97.)
NG
Check the following connectors:
C-213, C-210, C-201, C-29 <L.H. drive
vehicle>
Check the harness between the
combination meter and ignition
switch.
D Check for disconnection and
short-circuit of the power cable.
Replace the ignition switch.
NG
Check the following connector:
C-02, C-130
Check and repair the harness
between the combination meter and
engine-ECU.
D Check for disconnection and
short-circuit of the signal cable.
NG
Repair
NG
Repair
NG
Repair
Probable cause
D Intercooler water spray lamp bulb dead
D Ignition switch malfunction
D Intercooler water spray lamp circuit disconnection,
short-circuit, or connector contact defect
D Intercooler water spray switch circuit disconnection,
short-circuit, or connector contact defect
D Engine-ECU malfunction
NG
OK
NG
OK
NG
OK
13A-99
Repair
Repair
Repair

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