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Lead marking

Lead marking

The leads are marked with a three-part lead code, e.g.:



P15-5 YE/GY 2.5



where :

The first part (P15-5) is a position number

The second part (YE/GY) is a colour code

The third part (2.5) is the lead area in mm 2

Position number

All leads have an alphabetical designation followed by an individual number.

The letter indicates the group of systems to which the lead belongs:


• 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 iew systems

• W W arning systems

• X Other systems (e.g. bus)


The number is individual except for:


• 15 = +15-supply

• 30 = +30-supply

• 31 = ground

• 54 = +54-supply


Leads with the same letter and number, e.g. E110, E110-1, E110-2 etc., generally belong to the same function.

Colour code

The following colour codes are used in the wiring diagrams of the manual. The colour codes can also be used in combination, e.g. RD/BU, GY/WH.

As of M01, dual-colour cables have been introduced with at least two colour fields of each colour. Some small wiring harnesses may still have the old type of colour marking.

Code Colour
BK

Black

BN

Brown

BU

Blue

GN

Green

GY

Grey

OG

Orange

PK

Pink

RD

Red

VT

Violet

WH

White

YE

Yellow



Lead area

Indicates the cross-sectional area in mm 2 and is of immediate importance for the lead's current capacity.

Resistance to temperature

As of M00, the front harness and engine harness of Saab 9-3 have a new type of cable casing with a greater resistance to temperature. When cables in these harnesses are replaced, cables with the new type of insulation must be used.