Mitsubishi Stealth 1994 Import Service Manual page 579

MULTIPORT FUEL IINJECTION -
HARNESS INSPECTION
connector
Engine control
module harness
side
connector
Measure the power supply voltage of
idle air control motor.
Idle air control motor connector:
l
Disconnected
Ignition switch: ON
l
01 LO395
Check for an open-circuit, or a short-
circuit to ground between the engine
r--
connector
control module and the idle air control
- -
motor.
Engine control module connector:
l
Disconnected
Idle air control motor connector:
l
Disconnected
01 LO397
ACTUATOR INSPECTION
Checking the Operation Sound
(2) If the operation sound cannot be heard, check the stepper
On-Vehicle Inspection of MFI Components
-heard after the ignition is switched ON (but without starting
the motor).
motor's activation circuit.
If the circuit is normal, it is probable that there is a
malfunction of the stepper motor or of the engine control
module'.
A
Repair the
harness.