1986 CHEVROLET LIGHT DUTY TRUCK WIRING MANUAL – PDF DOWNLOAD (1)
DESCRIPTION:
1986 CHEVROLET LIGHT DUTY TRUCK WIRING MANUAL – PDF DOWNLOAD (1)
WIRING DIAGRAMS DESCRIPTION
- These diagrams use a new format. The diagram is surrounded by a alpha/numeric loaction grid. All the wires at the connectors have alpha/numeric addresses showing where the other end of the wire is located according to the grid.
- The connectors are shown with end-on views, with each circuit shown in the connector by circuit number.
- The individual circuits at the connector are shown as a simple line in the harness.
- T junctions show the branches in the harness. Splices in the harness are shown as dots with triangles around the dots. All the branches of a splice are listed at the splice.
BASIC ELECTRICAL:
CIRCUITS
An electrical circuit starts from a supply of electricity and conducts the electricity back to the supply of electricity. There should be a device to open and close the circuit, and a protective device to open the circuit in case too much current flows in the circuit. Electrical circuits can be set up as series circuits or parallel circuits. The circuits in trucks are usually parallel circuits.
SERIES CIRCUITS (Figure 1)
In series circuits, each electrical device is connected in the circuit so that the current can only go along one path as it flows from the power supply, around the circuit and back to the power supply. PARALLEL CIRCUITS (Figure 1) In parallel circuits, the electrical devices are connected by parallel wires that are joined at the start of the circuit. The current divides: part of it flows into one device, part into another. With circuits in parallel, each circuit can be switched on and off by itself since each circuit receives electricity directly from the power supply.
CIRCUIT COMPONENTS (Figure 2)
The usual circuit path starts at the power supply which is the battery/generator system. Next in the circuits is the circuit protection component which can be a fusible link, a fuse, or a circuit breaker. Then the circuit goes to the circuit controller which can be a switch or a relay. From the circuit controller the circuit goes into the circuit load. The circuit load can be one light or many lights in parallel, an electric motor or a solenoid. After the electricity has passed through the load it must return to the power supply via the ground path. The ground path can be a wire in the harness or it could be through the load housing into the body or frame, thus returning the electricity to the power supply. The body and frame are connected by flexible ground straps.
FUSIBLE LINK
A fusible link is a section of wire that is usually four gage sizes smaller than the circuit it protects. A special insulation is used that swells when heated by the wire. Fusible links are usually found in the engine compartment harnesses. The function of the fusible link is to melt open when an overload occurs, thus preventing any damage to the circuit. Figure
TABLE OF CONTENTS:
1986 CHEVROLET LIGHT DUTY TRUCK WIRING MANUAL – PDF DOWNLOAD
Wiring Diagrams Description……………………………………………………………………………………………………………………………2
Basic Electrical…………………………………………………………………………………………………………………………………………………2
Circuits…………………………………………………………………………………………………………………………………………………………..2
Wire Size Conversion Table………………………………………………………………………………………………………………………….4
Circuit Malfunctions……………………………………………………………………………………………………………………………………..4
Circuit Diagnosis………………………………………………………………………………………………………………………………………….. 4
Diagnostic Tools………………………………………………………………………………………………………………………………………….. 4
Circuit Maintenance And Repair…………………………………………………………………………………………………………………. 6
VEHICLE DIAGRAM
CK Truck……………………………………………………………………………………………………………………………………………..15598474
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PLEASE NOTE:
- This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
- Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.