Use Of Wiring Diagrams - OV00.01-P-1901-03FBA

Model 205 up to model year 2019 

Model 253 (except 253.99) up to model year 2020 

Wiring diagrams 

• The wiring diagrams are filed in the respective function group according to the PE number, e.g.:PE07.08-P-2101FBA PE07.08-P-2101FBB
• The wiring diagrams are prepared as function schematics, control unit diagrams and solder point wiring diagrams, ground wiring diagrams and connector wiring diagrams, and are structured as follows:
• Function schematics

  The control units and electrical components required for the function are shown as symbols. The functional connections are realized by direct lines or by the data bus.

• Control unit diagrams

  Control units are represented complete with all connected components.

• Solder point wiring diagrams, ground wiring diagrams and connector wiring diagrams

  Solder points, ground points and electrical connection, which are not shown completely in any control unit diagram, are shown here complete with all connected components.

The wiring diagrams also contain linkages of possible versions and functions.

Linkages, recognizable as versions, are framed and provided with an abbreviated designation/abbreviation.

The versions are designated with 1 and 2.

• The variants identified by the abbreviation "U..." or "Code..." are listed in the legends. Explanations regarding identification of variants with abbreviations such as ESP can be found in "Abbreviations for Workshop Literature" OV00.01-P-1001-27A.

The used signal and terminal designations are explained under "Abbreviations of signal and circuit designations for wiring diagrams" (refer to OV00.01-P-1001-28FBA  *(A5)).

• The vehicle identification end numbers or production breakpoint dates stated apply to the introduction of the main series. Pre-series vehicles may have a lower vehicle identification end number or an earlier start of production.
• Wire cross-sections may differ from the illustration in the wiring diagrams.

Wiring diagram number 

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Function schematic 

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The slash is deleted between base color and identifying color.

Wire Identification 

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Fuse blocks 

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Components and switches 

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Wire colors: 

BK = Black

BN = Brown

BU = Blue

GN = Green

GY = Gray

OG = Orange

PK = Pink

RD = Red

TR = Transparent

VT = Violet

WH = White

YE = Yellow

The symbol

• refers to further wiring diagrams.

• Special features in WIS presentation

In contrast to the presentation on paper, it is possible in the WIS to select certain areas (framed in red) and thus to jump to other documents or wiring diagrams.

• Selection of electrical connection → Document: Location and assignment of electrical connection
• Selection of ground points → Document: Location and assignment of ground points
• Selection of Z-connector sleeves → Document: Location and assignment of Z-connector sleeves
• Selection of PE hands → Reference to further wiring diagrams
• Selection of → document:

Component designations Abbreviations of signal and circuit designations

• Selection of → document:

Component designation "A0  " Use of wiring diagrams with explanation of color key

Location and assignment 

• The tables of contents for the location and assignment of ground points, soldering points and electrical connection are:

Electrical connection: refer to GF00.19-P-1000FBA

Ground points: refer to GF00.19-P-2000FBA )

Solder points: refer to GF00.19-P-3000FBA

The assignment of components can be obtained from the wiring diagrams specified in the list of contents.

CAN bus presentation 

CAN B interior CAN

CAN C drive train CAN

CAN D diagnostic CAN

CAN EHB chassis CAN

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LIN bus presentation 

LIN B8 climate control LIN

LIN C1 drive-LIN

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MOST bus presentation 

MOST Media Oriented System Transport

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