Symbols And Codes

Symbols And Codes

NOTE: In the examples shown on this page, an 'X' is used where a number would appear on an actual Figure.

Reference Symbols
Reference symbols are used for three purposes:
- to allow the user to complete the individual system circuit to power supply or ground
- to refer the user to a related circuit
- to identify control module inputs, outputs and signal grounds







Battery Power Supply
This symbol represents a direct battery power supply and refers the user to Figure 01.1, 01.2 or 01.3.







Ignition Switched Power Supply
This symbol represents ignition switched power supply and refers the user to Figure 01.1, 01.4, 01.5 or 01.6.
The suffix I indicates auxiliary power. Power is supplied in ignition switch key positions I (AUXILIARY) and II (IGNITION).
The suffix II indicates ignition power. Power is supplied in ignition switch key positions II (IGNITION) and III (ENGINE CRANK).
The suffix E indicates engine management switched power. Power is supplied in ignition switch key positions II (IGNITION) and III (ENGINE CRANK) under ECM control.







Ignition Switched Ground
This symbol represents an ignition switched ground and refers the user to Figure 02.1.
This symbol without a suffix indicates CRANK. Ground is completed in ignition switch key position III (ENGINE CRANK).
The suffix I indicates auxiliary ground. Ground is completed in ignition switch key positions I (AUXILIARY) and II (IGNITION).
The suffix II indicates ignition ground. Ground is completed in ignition switch key positions II (IGNITION) and III (ENGINE CRANK).







Figure Number Reference Flag
This symbol refers the reader to a figure number only. It does not refer to a flag with the same number on a different figure. As used in Figures 01.1 through 02.1, the reference flag refers the user to a continuation of the circuit. In this instance, the user matches the number to a Power Supply or Ground symbol to trace the circuit.

In most other cases, it is not necessary to refer to another figure for completion of a circuit, as the reference flags are used to indicate parallel circuits and circuits that share components. Most of the circuits where this situation occurs are overlapped to avoid the necessity for cross referencing to another figure. Exceptions to this rule are instances where signals are transmitted to or received from other system circuits. When circuits are not overlapped, they are noted by (CIRCUIT CONTINUED).

BPM Because the Body Processor Module appears numerous times, the abbreviation BPM is used in the reference flags on Figures 01.2 and 02.1 in order to conserve space.

Control Module Input, Output, Data Link, Signal Ground and Network(s)







These nine symbols are employed to assist the user in visualizing the logic of circuits containing control modules. The symbols identify control module input, output, data link, signal ground and network pins. These symbols are also employed on the corresponding data page.

* May also indicate Reference Voltage
** May also indicate Reference Ground or Logic Ground. Refer to Control Module Pin-Out Information.

Wiring Symbols







Wiring Harness Codes
AC Air Conditioning (Climate Control)
AN Generator Suppression Module
AS Generator to Starter
BB Trunk Bridging Link
BC Main Power Distribution
BL Trunk Lid
BT Trunk
DD Door, Driver
DP Door, Passenger
EL Engine Management Side Marker Link
EM Engine Management
FC Fascia
FL LH Front Wheel
FR RH Front Wheel
IC In-Car Entertainment
IS Inclination Sensor Link
LF Left Forward
LL Power Steering Link
PI Engine
QL Convertible LH Quarter Light Link
QR Convertible RH Quarter Light Link
RF Roof
RH Rearward
RL LH Rear Wheel
RR RH Rear Wheel
RT Radio Telephone
SA Starter to Generator Link
SC Column Switchgear
SD Seat, Driver
SP Seat, Passenger
SW Steering Wheel
TL Telephone

Wiring Color Codes
N Brown
B Black
W White
K Pink
G Green
R Red
Y Yellow
O Orange
S Slate
L Light
U Blue
P Purple
BRD Braid

When a wire has two color code letters, the first letter indicates the main color and the subsequent letter indicates the tracer color.

Code Numbering
When numbering connectors, grounds and splices, Jaguar Engineering uses a three-position format: AC001, AC002, etc. Because space is limited in this Electrical Guide, the codes have been shortened. Thus AC001-001 becomes AC1-1, AC002-001 becomes AC2-1, etc.

Connectors
HARNESS CODE + CONNECTOR NUMBER + PIN NUMBER; for example: FC7-24 (pin number is separated by a dash)
Where the pin number differs from LHD to RHD, the connector number will be further identified by (LHD) or (RHD).

Part 1:

Splices
HARNESS CODE + S (SPLICE) + SPLICE NUMBER; for example: RHS3 (no dash is used)

NOTE: In order to avoid unnecessary circuit complication, multiple splices (more than two wires) within components, in wires leading from input components to multiple circuits and in harness 'ground' sides, are simplified so as not to show wires from other circuits.

Part 2:

Fuses
All fuses are located in the fuse boxes. Each fuse is identified by an "F" number unique only to the fuse box in which it is located.

Part 3:

Grounds
HARNESS CODE + GROUND STUD NUMBER + EYELET STUD POSITION (A,B,C) + EYELET DESIGNATION (S,L,R)

Eyelet stud position
There may be up to three eyelets on one stud. A, B and C are used to indicate the position of the eyelet on the stud: A - first (bottom), B - second (middle), C - third (top).

Part 4:

On figures where LHD and RHD circuits are combined and the ground designation differs from LHD to RHD, the RHD ground code is shown in parentheses. If the ground designation is the same for LHD and RHD, only one ground designation is used.







Diodes
Harness diodes occur at connectors and are depicted as components and identified by a connector number.

Part 1:

Relays
Individual relays located outside of fuse boxes have a separate relay connector (base) and a unique connector number, which is shown within the relay. The connector number is shown in the upper portion of the relay; the pin (terminal) number is shown adjacent to the pin. Relays located within fuse boxes do not have a separate relay connector and are identified by an "R" number unique only to the fuse box in which they are located. All relays use the ISO pin numbering system (1, 2, 3, 4, 5).

Part 2:

Certain relays are paired and share a modular connector. In this instance, the two relays share a common connector number, while the pin numbers of the second relay are identified by the numbers 6 - 10.

Part 3:

Networks
In most instances, networks are shown as a broken grey line to indicate that there is network communication between the depicted control modules. Refer to Figures 21.1 and 21.2 for circuit details.

Part 4:

Component Depictions

Part 5: