Engine TOYOTA SUPRA 1995 Service Repair Manual

LY±
(Blue) (Yellow) Example: L±Y
Tab width
1.3 mm
Rubber
Plug
Rubber Ring
Housing Lance
Type
Terminal Lance
Type
INTRODUCTION±GENERAL INFORMATION
A±3
4
Wire Harness Repair Manual (RM1022E)
The first letter indicates the basic wire color and the second
letter indicates the color of the stripe.
Terminal and housing
Terminal connects wires and housing insulates connecting
parts.
There are the male terminal and the female terminal. The
types of terminals are decided by tab width of male
terminal. And the terminal with the rubber plug or the
rubber ring is used in the part, such as the engine
compartment, which become wet. For the circuit with slight
current at EFI system or ABS system, the gold±plated
terminal is introduced for ensuring reliabilities.
As the number of the circuit is increasing recently, there are
new types of parts introduced. For example, there is the
hybrid type housing, which is a combination of terminals
with different tab width, such as the power source terminal
or the signal terminal. Also, new type of connector such as
the double lock housing, which is designed with the
retainer in addition to the lance to prevent terminal from
slipping off, is available. The new type of connectors are
produced to realize higher product reliabilities and utilized
widely recently. The major characteristics of these new
connectors are shown in the table 1.
There are two types of lances: housing lance, which is
inside the housing and terminal lance, which is inside the
terminal.A

Sleeve Color MarksCrimping
Tool
ºCLOSE HEREº
Contact
ºINSº Position
10 mm (0.39 in.)
Three or More Times
TERMINAL AND CONNECTOR REPAIR±TERMINAL REPLACEMENT
B±30
40
Wire Harness Repair Manual (RM1022E)
(b)The crimping tool (AMP Part No. 169060) has color
marks on it. Place the sleeve in the correct section of
the tool according to the color of the sleeve itself.
HINT: For the crimping tool, AMP ºPart No. 169060º is
convenient to use.
(c)With the center of the sleeve correctly placed
between the crimping jaws, squeeze the crimping tool
until either end comes into contact at the section
marked by ºCLOSE HEREº.
HINT: Check to see that the sleeve and wires are still in
the correct position before closing the crimping tool ends
with steady pressure.
(d)Pull the joined wires to either end. Make sure that they
are joined firmly by the sleeve.
NOTICE:
If the joined wires come loose the splice is defective,
so replace the sleeve and repeat the procedure.
(e)Crimp both ends of the sleeve with the crimping tool
at the ºINSº position.
6. Protect Joined Section
Wrap silicon tape around the joins to protect them from
moisture.
NOTE: This job is required in repairs of the engine
compartment, under the floor and other moisture entry
positions.

Connector A
Connector B
Connector A
Lass than 1mmConnector B
Bolt
Cross±section of the bolt
TERMINAL AND CONNECTOR REPAIR±HOW TO INSTALL AND REMOVE SPECIAL CONNECTORS
B±52
62
Wire Harness Repair Manual (RM1022E)
Connector fixed by bolts
1. Area used

Engine control computer harness
2. Cut the connection of the connector.
(1)Remove the connector A.
(2)Loose the bolt using a tool like driver until the
connector B can be removed by hand and separate
the connector.
HINT: If the bolt can not be removed, roll it while pulling
forward.
3. Connection of the connector
(1)Temporarily fit the connector B.
(2)Tighten the bolt by using tool like driver and fit the
connector B completely.
NOTICE:

Tighten the bolt until feeling it lighter. Then confirm
that the width of chink of the connector B is less
than 1mm.

The bolt can be rolled after it is fitted.

If the impact wrench is used, do not let it rolling
more than three seconds. (The housing may be
deformed by generated heat)

Be sure and connect the connector B straight. Do
not incline it while connecting.
(3)Connect the connector A.