HOW TO USE THE CIRCUIT DIAGRAMS
Components
All of the information in this folder is intended for use with the Defender V8i
Electrical Reference Library booklet.
Connectors
The circuit diagrams are presented with Power and Earth distribution first, followed
by individual circuits for each electrical system on the car.
Power Distribution
The
Power Distribution diagram shows the connections from the battery to the
engine and passenger compartment fuseboxes. It also shows the internal circuitry of
the fuseboxes.
The name or description of the component is shown. A dotted outline indicates that
the componentis not shown in its entirety.
Header
numbered
joints
suffix
are
to
identified
indicate
by
the
their
pin-out
corresponding
connector
number
C289-1 identifies
with
a
Earth points
detail
of
the
wire,
i.e.
connector 289, pin number 1. Wire insulation colour is identified in the normal way.
Where wires have a predominant colour with a secondary colour stripe, the main
colour is identified first, i.e. LGS - Light Green with a Slate stripe.
Line Types
These fuse box details are followed by a Headers and Splices section outlining the
way
in which internal harness splices and header joints distribute power in the
harnesses. This information should be used during diagnosis of electrical faults to
check for symptoms in associated circuits and narrow down the search area.
Headers and splices
Header and splice tables present the joint(s) and wiring up to the first component.
Splices are identified by a number with an alphabetical prefix and the wire colour.
Earth points are identified with an eyelet symbol and a connector number, except
where
shown.
components are grounded through their fixings, when only the eyelet is
Wire attributes
Additional information (separated by a ’,’) is shown alongside the wire colour:
Wire
gauge
-
the
cross-sectional area
included to help you select the correct wire during harness repair.
Wire length (Power & Earth Distribution only) - the length of the wire in millimetres.
of the wire in square millimetres. This is
Fuses and Diodes
This means the wire connects to another circuit.
This
can be used to locate internal harness splices; look for the shortest wire
between the joint and connector. For example, it can be seen that C574-4 is 150mm
from joint A82.
Earth Distribution
The ground distribution section comprises a number of Headers and Splices tables.
These are used in a similar manner to those in Power Distribution; to narrow the
search area by checking for fault symptoms in associated circuits.
Fusible links (A) and current rated fuses (B) are identified as shown.
The direction of the arrow in a Diode symbol (C) indicates the direction of current
flow. The Zener diode (D) - prevents current flow until a precise voltage is reached.
The cup and ball symbol indicates the male and female halves of connector.
A. Plug on lead (Flylead) wired directly to the component.
B. Connector plugs directly into component.
| Categories | Land Rover, Land Rover Defender |
|---|---|
| Tags | Land Rover |
| Model Year | 1998 |
| Download File |
|
| Document Type | Electrical Troubleshooting Manual |
| Language | English |
| Product Name | Defender |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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