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25/02/2009 18:17:18

Document Title:

Function Group:

Information Type: Service Information

Date: 25/02/2009

Profile: WLO, L120E (Volvo) [GB]

Cable and component designations Cables and components in wiring diagrams are designated according to function group assignment. Cable designations: Lead marked, for example, 30–20 indicates that there is 30 feed via 20 to a component. After the component, the designation may be, for example, 6101 where 6 indicates function group, 01 is running number. Component designation: Component marked SW601 (for example), SW is switch, 6 indicates function group, 01 is running (sequential) number. Relays and fuses located on the circuit board are not marked according to function group assignment.

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Function group assignment Feeds and ground connections Engine Electrical system, lighting, etc. Power transmission Brakes Steering Other Cab Hydraulics

Plus feed Designation 30, 15, 15E, etc. in squares The current direction is from a large box with a thick line to a small box with a thin line. Squares with the same designation have connection with each other on the circuit board via printed circuits. 30 30A 30K 15A 15B 15EA RA

Battery feed Battery feed via main fuse FU70 Battery feed circuit board via main fuse FU70 Ignition-dependent voltage feed via relay RE2 Ignition-dependent voltage feed via relay RE4 Ignition-dependent voltage feed for ECU-controlled functions via RE12 Ignition-dependent voltage feed for radio

Ground connection Designation 31xx in squares Current direction is from small square with thin line to big square with heavy line. Squares with the same designation have connection with each other on the circuit board via printed circuits. BL = Blue BN = Brown GN = Green

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Colour marking of cables OR = Orange P = Pink R = Red

VO = Violet W = White Y = Yellow

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GR = Grey

25/02/2009 18:17:18

SB = Black

Colour marking of cables, plus feed/ground connection 30 feed Red 15 feed Red/white 5 volt feed Red/grey 24 volt feed, ECUs Red/white Ground connection Black Ground connection, electric Black/white

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