MPI SYSTEM - MPI System Inspection · 35

1989-Mitsu-Factory Manual · mpi system · страница 35 из 48 · Открыть оригинал PDF ↗

MPI SYSTEM - MPI System Inspection

(3) Connect the special tool (test harness) to the Idle speed
control servo connector.
(4) Connect the positive 0 terminal of a power source
(approx. 6V) to the white clip or the green clip.
(5) Holding the Idle speed control servo as shown in the
illustration, connect the negative 0 terminal of the power
source to each clip in the sequence described below, and
check whether or not there is vibration (a feeling of very
slight shaking of the stepper motor) as a result of
activation of the stepper motor.

0 Connect the negativea terminal of the power source
to the red and yellow clips.
0 Connect the negativeB terminal of the power source
to the red and yellow clips.
0 Connect the negative-e terminal of the power source
to the red and black clips.

@ Connect the negativea terminal of the power source
to the blue and black clips.
8 Connect the negative @terminal of the power source
to the blue and yellow clips.
@I Repeat the test in the reverse (8-o) sequence.
(6) If. as a result of this test, vibration is felt, the stepper
motor can be considered to be normal.

CONTROL RELAY

Nl4oYAc

Проверка

Caution

When applying battery voltage directly, make sure that it is
applied to correct terminal. Otherwise, the relay could be
damaged.

NOTE

Failure of the control relay prevents power supply to the fuel
pump, injectors, engine control unit, resulting in start failure.

(1) Remove the cover under the glove box and the glove box.
(2) Disconnect the control relay and connector.

(3) Connect a 12V power supply @ terminal to the terminal @
of the control relay and measure the voltages at terminals
@ and @ when the a terminal is connected to and
disconnected from the terminal @.

Таблица в оригинале

Оригинальная страница руководства