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HARNESS INSPECTION

ACTUATOR INSPECTION

Checking the Operation Sound

Check that the operation sound of the stepper motor can
be heard aftertheignition is switched ON (but without
starting the motor).

(2) If the operation sound cannot be heard; check the stepper
motor's activation circuit.
If the circuit is normal,it is probable that there is
malfunction of the stepper motor or of the engine control
unit.

Checking the Coil Resistance

1) Disconnect the idle speed control servo connector and
connect the special tool (test harness)

(2)Measure the resistance between terminal(white clip of
the special tool) and either terminal(red clip) or
terminal(blue clip) of the connector at the idle speed
control servo side

Standard value: 28330 [at 20*C]

(3)Measure the resistance between terminal(green clip of
the special tool) and either terminal(yellow clip) or
terminal(black clip) of the connector at the idle speed
control servo side

Standard value: 28 ~ 3302 [at 20*C]

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