Engine Wiring Information
Caterpillar identifies all wires with eleven solid colors. The circuit number is stamped on the wire at a
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Color Codes for the Harness Wire | |||
Color Code | Color | Color Code | Color |
BK | Black | BU | Blue |
BR | Brown | PU | Purple |
RD | Red | GY | Gray |
OR | Orange | WH | White |
YL | Yellow | PK | Pink |
GN | Green |
For example, a wire identification of F730-OR(Orange) on the schematic would signify an orange wire with the circuit number F730. F730-OR(Orange) identifies the power supply for the oil pressure sensor.
Note: Always replace a harness wire with the same gauge of wire and with the same color code.
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Illustration 1 | g01618479 |
Schematic Diagram for the Engine Harness |
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Illustration 2 | g01618483 |
Schematic Diagram for the Application |
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