Mitsubishi Galant. Manual — part 17

HARNESS CONNECTOR INSPECTION

TSB Revision

GENERAL <ELECTRICAL>

00E-3

CONNECTOR TERMINAL ENGAGEMENT AND
DISENGAGEMENT

Loosely engaged terminals can be repaired by removing the
female terminal from the connector housing and raising its
lance to establish better engagement. Removal of the
connector terminal used for MFI and INVECS-II A/T control
circuit can be done in the following manner.
COMPUTER CONNECTOR
1. Insert a screwdriver [1.4 mm (0.06 inch) width] as shown in

the figure, disengage front holder, and remove it.

2. Push the harness wire of the terminal to be repaired deep

into the connector from the harness side and hold it there.

3. Insert the tip of the screwdriver [1.4 mm (0.06 inch) width]

into the connector as shown in the figure, raise the housing
lance slightly with the tip, and pull out the terminal.

4. Insert a needle through the hole provided on the terminal

and raise the contact point. Lightly squeeze the outer edge
so the flats are parallel with the bottom.

ACX00904AB

FRONT
HOLDER

FRONT HOLDER

ACX00905

ACX00906 AB

HOUSING LANCE

ACX00907 AB

NEEDLE

NEEDLE

HARNESS CONNECTOR INSPECTION

TSB Revision

GENERAL <ELECTRICAL>

00E-4

ROUND WATERPROOF CONNECTOR
1. Remove the waterproof cap by using a screwdriver.

2. Insert the tip of the screwdriver [1.4 mm (0.06 inch) or 2.0

mm (0.08 inch) width] into the connector as shown in the
figure, raise the housing lance slightly with the tip, and pull
out the terminal.

3. Insert a screwdriver through the hole provided on the

terminal and raise the contact point. Lightly squeeze the
outer edge so the flats are parallel with the bottom.

RECTANGULAR WATERPROOF CONNECTOR
1. Disengage the front holder with a screwdriver and remove it.

2. Insert the tip of a screwdriver [0.8 mm (0.03 inch) width] into

the connector as shown in the figure, push it lightly to raise
the housing lance, and pull out the terminal.

3. Press the contact point of the male terminal down by holding

a screwdriver [1.4 mm (0.06 inch) width] as shown in the
figure. Lightly squeeze the outer edge so the flats are
parallel with the bottom.

ACX00908 AB

HOUSING LANCE

ACX00909

ACX00910AB

FRONT HOLDER

FRONT
HOLDER

ACX00911AB

HOUSING LANCE

ACX00912

HOW TO DIAGNOSE

TSB Revision

GENERAL <ELECTRICAL>

00E-5

INJECTOR CONNECTOR
1. Remove the waterproof cap.

2. Insert the tip of a screwdriver [1.4 mm (0.06 inch) width] into

the connector as shown in the figure, press in the terminal
lance, and pull out the terminal.

CAUTION

Make sure the lance is pressed in before the terminal is
inserted into the connector.
3. Press the contact point of the male terminal down by holding

a screwdriver [1.4 mm (0.06 inch) width] as shown in the
figure.

H O W TO D IA G N O SE

HOW TO DIAGNOSE

M1001004300064

The most important point in troubleshooting is to
determine "Probable Cause." Once the probable
causes are determined, parts to be checked can be
limited to those associated with such probable
causes. The determination of the probable causes
must be based on a theory and be supported by facts
and must not be based on intuition only.

TROUBLESHOOTING STEPS

M1001004400038

If an attempt is made to solve a problem without going through correct steps for troubleshooting, the
symptoms could become more complicated, resulting in failure to determine the causes correctly and making
incorrect repairs. The four steps below should be followed in troubleshooting.

ACX00913AB

WATERPROOF
CAP

ACX00914AB

TERMINAL LANCE

HOW TO DIAGNOSE

TSB Revision

GENERAL <ELECTRICAL>

00E-6

INFORMATION FOR DIAGNOSIS

M1001004500035

This manual contains the harness diagrams as well
as the individual circuit drawings, operational
explanations, and troubleshooting hints for each
component. The information is presented in the
following manner:

1. Connector diagrams show the connector

positions, etc., on the actual vehicle as well as the
harness path.

2. Circuit diagrams show the configuration of the

circuit with all switches in their normal positions.

3. Operational explanations include circuit drawings

of voltage flow when the switch is operated and
how the component operates in reaction.

4. Troubleshooting hints include numerous

examples of problems which might occur, traced
backward in a common-sense manner to the
origin of the trouble. Problems whose origins may
not be found in this manner are pursued through
the various system circuits.

NOTE: Components of MFI, ETACS, etc. with ECU
do not include 3 and 4 above. For this information,
refer to a relevant group which includes details of
these components.

ACX00915

3

Checking of Parts Associated with
Plobable Causes and Determination
of Faulty Parts

2 Determination of Probable Causes

4 Repair and Confirmation

Observe the symptom carefully. Check if there are also
other problems.

In determining the probable causes, it is necessary to
study the wiring diagram to understand the circuit as a
system. Knowledge of switches, relays and other parts is
necessary for accurate analysis. The causes of similar
problems in the past must be taken into account.

Troubleshooting is carried out by making step-by-step
checks until the cause is found.

After the problems are corrected, be sure to check that the
system operates correctly. Also check that new problems
have not been caused by the repair.

AB

1 Observation of Problem Symptoms