Service Manual Trucks Group 370-500 Circuit and Wiring … BLACK Fused power and signal L WHITE RED MULTI. COLOR Ground … Unswitched Battery Feed to Transmission (non-Volvo) Transmission … j Foreword The descriptions and service procedre@ntain€d h thb manml are based on designs and methods studies cariod qn tp b Arglrst 00. The products are under contirnE An|opment VbhiJG and components produced after the abore date rray thel*le havs dhtstt speancaions and rcpair methods. When this is believ€d b haue a obnificant beadng m thb …

Circuit Number Index Circuit and Wiring Numbers Wire and Cable Number Marking All wire and cable smaller than 0 AWG (American Wire Gauge) is imprinted with circuit and wire numbers. The circuit numbeF are imprinted repeatedly every two to three inches (50 to 75 mm) horizontally along the entire length of the wire or cable. In cases when imprinting of the circuit number on the wire or cable is not practical (e.9. multiple conductor cable) circuit number markers will be applied one to two inches (25 to 50 mm) from the terminal or end of cable. Wire Color Note: Allwire used in the vehicle has a cross{inked polyethylene insulation (XLPE). lt complies to SAE stan- dad Jl128. BLACK Fused power and signal L WHITE RED MULTI. COLOR Ground Unfused battery Wire harnesses may be usod as interfaces to some components; definitirn of multi-colored wires varies by oompo- nent. Electronic Sub-system Circuit Numbers The.ga,ased use of electronic subsystems ttas caused tnq fraion of vendor circuit identilitptinn numberc whLlrld conflict with the existing Voho circuit rum- bers. For example, circuit number 209 ean be oihor Volvo Transformer-Rectifier System Volbneter frdhp’ Feed or Cummins Pace Tachometer. To aw*l0is s> flict and still reAin the vendor circuit numbors, a pldu has been added to the vendor circuit rxrr$ots. This prefix will ldentify the circuit as a wn&r Cectonb subsystem. For example circuit 209 rivotld be nfrd as: 2Og Volvo circuit C2Og Cummins circuit Note: The prefix added b wn& del cfy rylles to Volvo-supplied wiring harnc. OQcris lhat come with their own widng ]ramecc tdr r dcctonbdy controlled diesel enghos, d rU&tr rumbering system explained h trb nsrd. fcffidbn of circuit numberc/colcrs o w&r#d@fiponents, see the component manubctrrf ffi brdrre. For inbrmation on tenrr d &lbrc see “Definitions” page 6. The table (seetaHe pagB 4) b FSGs and the cone- soor rvendor. rt Circuit Suffixes Design of branch circrls H clghae from a base cir- cuit may contain a hl4hil-d rfix. For example, if circuit 0 requires a sploe b ad two branch circuits, then those branch circuit may bc bbefed fA and fB. The text that appearc dtor $e al|bc separator does not apply to the function cf the ciqt grd b herefore not listed. Circuits functionaly tobd b a liwn base circuit are often created icr new desiglrs. Th6e circuits appear withod a tryphended 6rahr For example, circuit 0A (the main altemator groud) b rehed to circuit 0 (the main vehicle ground). Please n6 ttd a functional relationship does not imply electrical continuity. ffit llertrr l A B c D E L M P o T V Allison Caterpi!lar Cummins Detroit Diesel VDO Delphi Delco Electronics Meritor Delphi Packard Electronics Qualcomm Eaton Bosch EBS Eaton VORAD…

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