Page 2129 of 2543

SERVICE SPECIFICATIONS
SERVICE DATA
Turbocharger
Turbocharging pressure
Impeller wheel axial play Limit
Impeller wheel radial play Limit
61±75 kPa (0.62±0.76 kgf/cm2, 8.8±10.8 psi)
0.162 mm (0.0064 in.)
0.110 mm (0.0045 in.)
TORQUE SPECIFICATIONS
Part tightened
NVm
kgfVcm
ftVlbf
Turbocharger x Turbine outlet elbow 25 250 18
Turbo water pipe x Turbocharger 8.8 90 78 in.Vlbf
Side bearing housing plate x Turbocharger 8.8 90 78 in.Vlbf
No.2 air tube x No.2 turbocharger 21 210 15
Turbocharger x Exhaust manifold
54
550
40
Turbo oil pipe x Turbocharger 21 210 15
Turbo oil pipe x Cylinder block 39 400 29
Turbocharger stay x Turbocharger 43 440 32
Turbocharger stay x Cylinder block
43
440
32
Exhaust gas control valve x Turbine outlet elbow 69 700 51
Main heated oxygen sensor x Exhaust gas control valve 20 200 14
Exhaust gas control valve stay x Exhaust gas control valve 43 440 32
Exhaust gas control valve stay x Cylinder block
43
440
32
Exhaust bypass pipe x Turbine outlet elbow 25 250 18
Exhaust bypass pipe x Exhaust gas control valve 25 250 18
Intake air control valve x No.2 turbocharger 21 210 15
No.4 air tube x No.1 turbocharger
21
210
15
No.1 air tube x No.1 turbocharger
21
210
15
No.2 front exhaust pipe x Exhaust gas control valve 62 630 46
Front exhaust pipe x No.2 front exhaust pipe 58 590 43
Pipe support bracket x Transmission 43 440 32
Upper front crossmember extension x Front suspension Bolt
Nut
29
33
300
340
22
25
Front lower arm bracket stay x Front suspension Bolt
Nut
44
59
450
600
33
43
CAC duct x CAC 4.9 50 43 in.Vlbf
CAC x Body 13 135 10
EG±162± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)
Page 2130 of 2543
2002
All rights reserved. This book may not be
reproduced or copied, in whole or in part, without the
written permission of Toyota Motor Corporation.
FOREWORD
This manual has been prepared for use when
performing terminal repairs, wire repairs, or connector
repairs on vehicles.
A step±by±step section on connector repair and
terminal repair is included.
There is a section of charts with terminal and connector
illustrations, part numbers, and notes on terminal
removal.
By using this guide, a satisfactory repair of the wiring
harness and connectors in Toyota vehicles will be easy
to achieve.
All information in this manual is based on the latest
product information at the time of publication. However,
specifications and procedures are subject to change
without notice.
Page 2131 of 2543

Tab width
0.64 mm
INTRODUCTION±GENERAL INFORMATION
A±1
2
Wire Harness Repair Manual (RM1022E)
GENERAL INFORMATION
This manual provides instruction in the following repairs:
How to Inspect for System Inspection
Circuit Protection
Terminal and Connector Repair Procedure
NOTICE:
When inspecting or repairing the SRS AIRBAG, be sure to carefully read the precautionary
instructions and procedure in the Repair Manual for the applicable model.
After any electrical repair is made, always test the circuit by operating the devices in the circuit. This
confirms not only that the repair is correct, but also that the cause of the complaint was correctly
identified.
Terminal type number name
The terminal type number naming system has changed:
the metric system will be used in place of the inch system.
To be more specific, male tab width ºin millimetersº will be
used as terminal type number from now on ±± in place of
male tab width in inches which has been in use so far.
Below is a table of comparison:
Old terminal type No.
(inch)
New terminal type No.
(mm)
025"0.64
040 (II, III, IV)"1.0 (II, III, IV)
050"1.3
070 (II)"1.8 (II)
090 (II)"2.3 (II)
187"4.8
250 (II)"6.3 (II)
305"7.7
312"8.0
375"9.5
For those connectors which are not shown above, the
terminal type numbers remain unchanged.
A
Page 2132 of 2543

Terminal (Female)
Housing (Female)
Housing (Male)
Terminal (Male)
Wire
Harness
(W/H)Electric Wire
Terminal
Housing
Fuse
Other J/B
(Junction Block)
R/B
(Relay Block)
Insulator
Copper Wires
(Conductor)
B = Black W = White
L = Blue BR = Brown
V = Violet SB = Sky Blue
R = Red G = Green
P = Pink LG = Light Green
Y = Yellow GR = Gray
O = Orange
A±2
INTRODUCTION±GENERAL INFORMATION
3
Wire Harness Repair Manual (RM1022E)
What is Wire Harness?
The wire harness (W/H) is systems of electric wires for
automobiles to connect all the electronics parts in
automobile electrically and work them. As more electronics
parts are introduced in automobiles recently, the electric
wires used for the wire harness are increasing in number
and the structure is becoming more complicated. As a
result of that, there are hundreds of connectors, which is
the parts which connects wires mechanically and
electrically, in one vehicle. Therefore, numbers of the
connector terminal (Terminal) or the connector housing
(Housing) are designed to meet many kinds of uses of
circuits. Various components have been improved to
ensure the product reliability or realize a wider space in the
vehicles.
Wire Harness Components
Wire harness mainly consists of wires, terminals, or
housings.
There are various components are designed for many
parts of vehicles, such as one with high heat±resistance,
water±resistance, or bending ability, ones have different
current capacities, or ones are hardly influenced by
electromagnetic noise.
Electric Wire
The electric wires used for the wire harness consists of the
conductor made from numbers of twisted mild copper wire
with a diameter of less than 0.5 mm and the insulator
surrounding the conductor.
The insulator is generally made from vinyl chloride and
covers the conductor with even thickness. The insulators
are color±coded in order to distinguish each wire. The base
colors or the stripe patterns is used to make difference
between insulators. Each color of wires is indicated by the
abbreviation in the repair manual and the electrical wiring
diagram.
A
Page 2133 of 2543

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
Page 2134 of 2543
A±4
INTRODUCTION±GENERAL INFORMATION
5
Wire Harness Repair Manual (RM1022E)
Table 1 : Characteristics of the new types of connector (Improvement)
Characteristics (Improvement)Note
Retainer (Double Lock)
Lance (Primary Lock)
Housing
Terminal
1. Double LockIf terminal is not inserted to
housing correctly, the retailer
does not fit.
2. Extension of Housing
Extension
ShorteningHousing
Terminal
This is to prevent deformation of
the terminal when it is inserted
diagonally.
3. Change of Contact Structure and
Introduction of Box±Shaped StructureExpansion of contact section
Stabilization of contact pressure
4. Change of Locking Shape
Ribs are addedThis improves the close fit of
locking and you can hear the
click sound and feel that the
connector is completely
installed.
A
Page 2135 of 2543
![TOYOTA SUPRA 1995 Service Repair Manual To Ignition SW
IG Terminal
Fuse
Relay
SW2 SolenoidVoltmeter [A]
[B]
[C] SW1
Ohmmeter
SW
INTRODUCTION±HOW TO PERFORM FOR SYSTEM INSPECTION
A±5
6
Wire Harness Repair Manual (RM1022E)
HOW TO PERFORM FO TOYOTA SUPRA 1995 Service Repair Manual To Ignition SW
IG Terminal
Fuse
Relay
SW2 SolenoidVoltmeter [A]
[B]
[C] SW1
Ohmmeter
SW
INTRODUCTION±HOW TO PERFORM FOR SYSTEM INSPECTION
A±5
6
Wire Harness Repair Manual (RM1022E)
HOW TO PERFORM FO](/manual-img/14/57468/w960_57468-2134.png)
To Ignition SW
IG Terminal
Fuse
Relay
SW2 SolenoidVoltmeter [A]
[B]
[C] SW1
Ohmmeter
SW
INTRODUCTION±HOW TO PERFORM FOR SYSTEM INSPECTION
A±5
6
Wire Harness Repair Manual (RM1022E)
HOW TO PERFORM FOR SYSTEM INSPECTION
This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during
system operation and is based on the assumption of system component trouble
Always inspect the trouble taking the following items into consideration:
Ground point fault
Open or short circuit of the wire harness
Connector or terminal connection fault
Fuse or fusible link fault
NOTICE:
This is an on±vehicle inspection during system operation.
Therefore, inspect the trouble with due regard for safety.
If connecting the battery directly, be careful not to cause a short circuit, and select the applicable
voltage.
1. Voltage Check
(a)Establish conditions in which voltage is present at the
check point.
Example:
[A] ± Ignition SW on
[B] ± Ignition SW and SW 1 on
[C] ± Ignition SW, SW 1 and Relay on (SW 2 off)
(b)Using a voltmeter, connect the negative (±) lead to a
good ground point or negative (±) battery terminal
and the positive (+) lead to the connector or
component terminal. This check can be done with a
test bulb instead of a voltmeter.
2. Continuity and Resistance Check
(a)Disconnect the battery terminal or wire so there is no
voltage between the check points.
(b)Contact the two leads of an ohmmeter to each of the
check points.
A
Page 2136 of 2543

Diode Ohmmeter
Diode Ohmmeter
Digital Type Analog Type
Bulb Ohmmeter
A±6
INTRODUCTION±HOW TO PERFORM FOR SYSTEM INSPECTION
7
Wire Harness Repair Manual (RM1022E)
If the circuit has diodes, reverse the two leads and check
again.
When touching the negative (±) lead to the diode positive
(+) side and the positive (+) lead to the negative (±) side,
there should be continuity. When touching the two leads in
reverse, there should be no continuity.
HINT: Specifications may vary depending on the type of
tester, so refer to the tester's instruction manual before
performing the inspection.
Check LED (Light Emitting Diode) in the same manner as
that for diodes.
HINT:
Use a tester with a power source of 3V or greater to
overcome the circuit resistance.
If a suitable tester is not available, apply battery
voltage and check that the LED lights up.
(c)Use a volt/ohmmeter with high impedance (10kW/V
minimum) for troubleshooting of the electrical circuit.
3. Bulb Check
(a)Remove the bulb.
(b)There should be continuity between the respective
terminals of the bulb together with a certain amount
of resistance.
(c)Apply the two leads of the ohmmeter to each of the
terminals.
(d)Apply battery voltage and check that the bulb light up.
A