NPR L4-48L DSL Turbo (2000) Exhaust System - Diagrams and Diagnostic Aids
All wires have color-coded insulation. Wires belonging to a system's main harness will have a single color. Wires belonging to a system's sub circuits
will have a colored stripe Striped wires use the following code to show wire size and colors.
Abbreviations are used to indicate wire color within a circuit diagram.
Refer to the above table.
wire color coding