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Defender Electric Diagrams. Manual - part 10

DEFENDER 90-NAS

97 MODEL YEAR

IN2

IN1

POS4-CRANK

POS3-IGN

POS2-AUX

GROUND

MAIN

60 AMP

LINK 5

100 AMP

LINK 1

13.5 VOLTS

15 AMP

7.5 AMP

FUSE 6

FUSE 5

FUSE 2

5 AMP

FUSE 11

10 AMP

IGNITION (S176)

JOINT (K108)

EARTH HEADER

C41-1

C573-2

C570-2

C289-11

C289-9

C491-2

C491-1

C580-3

C99-1

C581-1

C580-7

C491-3

C28-1

C632-1

C580-12

C580-10

C580-4

C581-2

C339-2

C92-8

C92-7

C92-6

C92-5

C92-4

C92-3

C92-2

C92-1

C491-6

C491-13

C491-11

C491-7

C491-14

C492-1

C492-2

C492-3

C492-4

C492-5

C492-6

C492-7

C492-8

C550-6

C98-2

C98-8

C98-4

C340-2

C340-1

C308-1

C309-1

C339-1

C391-1

C310-1

C491-4

C491-12

C491-5

C379-4 C393-4

C379-2 C393-2

C379-3 C393-3

C379-1 C393-1

C491-8

C491-9

C550-3

C98-7

C98-6

A376

A87

A174

A122

A81

SJ1

A85

A84

LIGHTING SWITCH (S100)

BATTERY (P100)

SPEAKER-RH (F118)

REAR DOOR

SPEAKER-LH (F119)

REAR DOOR

HEADER JOINT (K109)

FUSEBOX (P108)

COMPARTMENT

ENGINE

PASSENGER COMPARTMENT FUSEBOX (P101)

RADIO/CASSETTE PLAYER (F100)

RADIO/CASSETTE POWER AMPLIFIER (F111)

B,1.5

WLG,1.0

B,1.0

N,4.5

BR,0.5

BN,0.5

BW,0.5

BU,0.5

BO,0.5

BY,0.5

B,1.0

BU,1.0

BG,1.0

BW,1.0

BO,1.0

BK,1.0

BG,1.0

BN,1.0

BR,1.0

BY,1.0

BN,1.0

BU,1.0

BW,1.0

B,1.5

N,10.0

N,3.0

B,15.0

YP,0.5

WO,2.0

N,2.0

N,3.0

P,1.5

RB,1.0

WLG,1.0

BK,0.5

RB,0.5

WK,0.5H

R,1.5

P,1.0

WLG,1.0

BG,0.5

WK,0.5H

IN-CAR ENTERTAINMENT

50.1

LINK 3

60 AMP

C41-2

FRONT-LH (F108)

DOOR SPEAKER-

DOOR SPEAKER-
FRONT-RH (F107)

DEFENDER 90-NAS

97 MODEL YEAR

IN2

IN1

POS4-CRANK

POS3-IGN

POS2-AUX

1 AMP

(N117)

SOLENOID

SHIFT

INTERLOCK

FUSE 18

15 AMP

PARK 2

PARK 1

1 AMP

20 AMP

FUSE 2

JOINT (K108)

EARTH HEADER

EARTH

C560

GROUND

MAIN

100 AMP

LINK 1

60 AMP

LINK 5

13.5 VOLTS

IGNITION SWITCH (S176)

C287-10

C287-9

C287-11

C924-2

C924-1

C289-6

C062-21

C062-3

C285-1

C285-6

C448-8 C162-8

C057-10

C057-11

C448-10 C162-10

C668-6

C668-5

C668-2

C668-1

C069-5

C069-4

C550-4

C668-4

C668-3

C286-15

C286-17

C801-2

C801-1

C956-86

C956-85

C029-1

C075-1

C683-2

C683-1

C449-9 C203-9

C287-19

C287-20

C581-14

C581-13

C671-1

C671-2

C289-8

C289-7

C956-30

C956-87

C802-2

C802-1

C203-10

C449-10

C684-2

C684-3

C574-3

C672-2

C672-1

C550-6

C632-1

C028-1

C570-2

C094-1

A334

A416

A53

A107

A252

A36

A34

A341

A374

A46

A11

A376

A87

A69

A25

SJ5

A174

A171

SJ1

A20

A13

SJ2

LIGHT SWITCH (S210)

STARTER INHIBITOR/REVERSE

AUTOMATIC TRANSMISSION

DIODE (G126)

ENGINE IMMOBILISATION ECU (D139)

SWITCH (S215)

BRAKE PEDAL

DIODE (G126)

INTERLOCK RELAY (R199)

KEY IN SENSOR (T157)

DIODE (G126)

BATTERY (P100)

JOINT (K109)

HEADER

ECU (D131)

MULTI FUNCTION

HEADER JOINT (K109)

FUSEBOX (P101)

PASSENGER COMPARTMENT

SELECTOR (S228)

TRANSMISSION

AUTOMATIC

HEADER JOINT (K109)

JOINT (K109)

HEADER

ENGINE COMPARTMENT FUSEBOX (P108)

N,4.5

N,3.0

N,10.0

B,15.0

W,3.0

G,2.0

B,6.0

B,2.0

P,2.0

P,1.0

B,1.0

B,0.5

BK,0.5

BR,0.5

BK,0.5

W,4.0

G,1.0

SB,0.5

B,1.0

GP,1.0

G,0.5

BK,0.5

YB,0.5

BK,0.5

BR,0.5

GP,1.0

KS,0.5

B,0.5

B,1.0

GP,1.0

BR,0.5

BY,0.5

BO,0.5

B,0.5

B,2.0

SB,0.5

BR,0.5

BY,0.5

87A

IGNITION AND SHIFT INTERLOCK

51.1

NEUTRAL SWITCH

TRANSFER GEARBOX

KEY INTERLOCK
SOLENOID (N120)

TRANSFER GEARBOX INTERLOCK UNIT (N121)

INTRODUCTION

DEFENDER 90 NAS

This Reference Library is designed to be used in conjunction with the Circuit Diagrams
as an aid to the diagnosis of electrical faults. When diagnosing faults using TestBook, the
circuits and library will prove a useful source of additional information, enabling you to
study the operation of the circuit, isolate the suspect sub-circuit and quickly locate
connectors, without unnecessary removal of trim. The library has 2 sections; Circuit
Operation and Connector Detail.

1. Circuit Operation

This section contains a description of operation for every circuit diagram, with the
exception of Power and Ground Distribution. Each description attempts to detail
current flow in the circuit under all operating conditions. Wires are identified by their
color, and where appropriate, their corresponding connector and pin numbers. Where
circuits contain microprocessor control units, the descriptions concentrate on the
system inputs and outputs.

2. Connector Detail

This section is effectively an index of every electrical connector on the vehicle,
including header joints and eyelets. A page is dedicated to each connector, with the
information presented in a standard format. The connector number is displayed on
each page header to ease reference. Connector Detail information comprises:

•

Connector Number - The assigned number, prefixed “C”.

•

Connector Name - Usually derived from the component to which the connection is
made.

•

[number] Way - Number of pins if applicable. This is a statement of the pin
locations in the connector housing (receptacle) and should not be confused with the
number of wires actually populating these locations, which is usually less.

•

Male/Female - If applicable, shows whether the connector pins (NOT the housing)
are of a Male or Female gender. Generally, connectors mating directly to a
component have Female pins.

•

Color - If applicable, the color of the connector housing is shown. NATURAL is
used to describe connectors with a clear/translucent plastic finish.

•

Location Statement - Used in conjunction with the photograph to determine the
exact location of the connector.

INTRODUCTION

DEFENDER 90 NAS

•

Photograph - Shows the location of the subject connector. In most cases, the
photograph will indicate the amount of trim removal necessary to reveal the
connector.

•

Face View - An outline of the connector housing, drawn from the front, showing pin
numbers (if applicable).

•

Pin-out Table - A three column table, detailing the color and position of each wire
in the connector:

Cav - The connector pin (cavity) number.

Color - The color of wire populating the connector pin.

Cct - Shows the derivatives of vehicle using the wire. ALL means
applicable to all vehicles in the range.

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