Nissan Sentra Service Manual: Description

• This means the power supply of fusible link or fuse.

• “X” means the fusible link.

• This means the number of fusible link or fuse location.

• “/” means the fuse.

• This means the current rating of the fusible link or fuse.

• The open circle shows that the splice is optional depending on vehicle application.

• The letter shows which harness the connector is located in.
• Example “M”: main harness. For detail and to locate the connector, refer to PG-38, "Electrical Units Location".

• The shaded circle “
  ” means the splice.

• This circuit continues to an adjacent page.

• This means the vehicle specifications which layouts the circuit between “ ”.

• This shows an internal representation of the relay.

• This shows a description of the option abbreviation used on the page.

• This shows that continuity exists between terminals 1 and 2 when the switch is in the A position. Continuity exists between terminals 1 and 3 when the switch is in the B position.

• This means the wiring.

• This shows that the circuit is branched to other systems.

• The line enclosed by broken line circle shows shield wire.

• This shows the name of a component.

• This shows the ground connection.

• This means the connector information.
• This unit-side is described by the connector symbols.

• This means that a transmission line bypasses two connectors or more.

• This shows a code for the color of the wire.

W = White

R = Red

G = Green

L = Blue

Y = Yellow

LG = Light Green

BG = Beige

BR = Brown

LA = Lavender

OR or O = Orange

P = Pink

PU or V (Violet) = Purple

GY or GR = Gray

SB = Sky Blue

CH = Dark Brown

DG = Dark Green

• When the wire color is striped, the base color is given first, followed by the stripe color as shown below: Example: L/W = Blue with White Stripe

• This means the terminal number of a connector.