Nissan Sentra Service Manual: How to read wiring diagrams

Key to Symbols Signifying Measurements or Procedures

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Connector symbols

Most of connector symbols in wiring diagrams are shown from the terminal side. Connector symbols shown from the terminal side are enclosed by a single line and followed by the direction mark. ...

Other materials:

Power supply routing circuit
Wiring Diagram — Battery Power Supply — Wiring Diagram — Accessory Power Supply — Wiring Diagram — Ignition Power Supply — Fuse If fuse is blown, be sure to eliminate cause o ...

Combination switch
Exploded view Combination switch Combination switch harness connector Front NOTE: Shown with the steering wheel removed for clarity only. Removal and installation REMOVAL CAUTION: Before servicing, turn the ignition switch OFF, disconnect both battery terminals and wait at l ...

Precaution for Work
When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth. When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a ...