Electrical Wiring Diagrams for GM Models from 1977
Coverage for WEB Models 4045 Through 9095
SAE J1560 Type TXL Wire Specifications
All wires in the WEB electrical system must be 18 AWG or larger, and they must meet the specifications outlined in SAE J1560 Type TXL. This standard defines the electrical and physical properties of automotive wire, including its conductor size, insulation thickness, and resistance to heat, oil, and chemicals.
Twisted pair wiring, which is used for data transmission, must also meet the specifications outlined in SAE J1708. This standard defines the electrical and physical properties of twisted pair wiring, including its conductor size, insulation thickness, and capacitance.
Electrical Circuit Diagram Manual Revision 1
The Electrical Circuit Diagram Manual for WEB models 4045 through 9095 is available as a PDF download. The manual includes detailed wiring diagrams for all of the electrical systems on these vehicles, including the engine, chassis, and body. The manual is an invaluable resource for troubleshooting electrical problems and performing repairs.
Chassis Side Diagrams
In addition to the Electrical Circuit Diagram Manual, a set of chassis side diagrams is available for use as a reference. These diagrams show the location of all of the electrical components on the chassis, including the battery, starter, alternator, and fuse box. The diagrams can be helpful for tracing wires and identifying electrical problems.
Engine Diagrams
Engine diagrams are also available for WEB models 4045 through 9095. These diagrams show the location of all of the electrical components on the engine, including the ignition coil, distributor, and fuel injectors. The diagrams can be helpful for troubleshooting electrical problems and performing repairs.
Please note that the engine diagrams are not included in the Electrical Circuit Diagram Manual. They must be downloaded separately.
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