Lead markings
Lead markings |
Leads are marked with a code consisting of three parts, e.g.:
P15-5 YE/GY 2.5
where:
The first part (P15-5) is a position number
The second part (YE/GY) is the colour code
The third part (2.5) is the cross-sectional area in mm 2
Position number |
All leads are provided with a letter designation followed by an individual number.
The letter designates which group of systems the lead belongs to:
• |
C
C
omfort Systems
|
• |
D
D
iagnostics
|
• |
E
E
ngine Systems
|
• |
G
G
earbox Systems
|
• |
I
I
nstrumentation Systems
|
• |
L
L
ighting Systems
|
• |
P
P
ower Supply Systems
|
• |
Q
Anti-Theft Alarm
|
• |
S
S
afety Systems
|
• |
T
T
elecom Systems
|
• |
V
V
isibility Systems
|
• |
W
W
arning Systems
|
• |
X
Other systems (e.g. bus)
|
The numbers are individual, except for:
• |
15 = +15 current
|
• |
30 = +30 current
|
• |
31 = ground
|
• |
54 = +54 current
|
Leads with the same letter and number, e.g. E110, E110-1, E110-2, etc. usually belong to the same function.
Colour code |
The following colour codes have been used in the wiring diagrams in this manual. The colour codes can also be used in combinations, e.g. RD/BU, GY/WH.
Dual-colour cables have been introduced from M01 with at least two sections of each colour. Certain smaller wiring harnesses may still have the old type of colour marking however.
Code | Colour |
BK
|
Black
|
BN
|
Brown
|
BU
|
Blue
|
GN
|
Green
|
GY
|
Grey
|
OG
|
Orange
|
PK
|
Pink
|
RD
|
Red
|
VT
|
Violet
|
WH
|
White
|
YE
|
Yellow
|
Cross-sectional area |
The cross-sectional area of the conductor is specified in mm 2 and determines the current that the cable is capable of carrying.
Thermal stability |
The front harness and engine harness have a new type of cable sheath with greater thermal stability on Saab 9-3 from M00. Cables with the new type of insulation must be used when changing cables in the engine harness.