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:

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. Connector symbols shown from the harness side are enclosed by a double line and followed by the ...

Ducts and grilles
Exploded View Heating and cooling unit assembly Center ventilator duct Defroster duct Side ventilator duct (LH) Front floor duct (LH) Rear floor connecting duct (LH) Rear floor duct (LH) Rear floor duct nozzle (LH) Rear floor duct nozzle (RH) Rear floor duct (RH) Rear flo ...

General Precautions
Do not operate the engine for an extended period of time without proper exhaust ventilation. Keep the work area well ventilated and free of any inflammable materials. Special care should be taken when handling any inflammable or poisonous materials, such as gasoline, refrigerant gas, etc. Wh ...