Nissan Altima 2007-2012 Service Manual: How to read wiring diagrams

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 direction mark.

• Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector.

For description and how to disconnect, refer to PG section, “Description”, “HARNESS CONNECTOR”.

• Male and female terminals

Connector guides for male terminals are shown in black and female terminals in white in wiring diagrams.

Sample/wiring diagram -example-

• For detail, refer to following GI-11, "Description".

Description

SWITCH POSITIONS

Switches are shown in wiring diagrams as if the vehicle is in the “normal” condition.

A vehicle is in the “normal” condition when:

• ignition switch is “OFF”, • doors, hood and trunk lid/back door are closed, • pedals are not depressed, and • parking brake is released.

MULTIPLE SWITCH

The continuity of multiple switch is described in two ways as shown below.

• The switch chart is used in schematic diagrams.

• The switch diagram is used in wiring diagrams.

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    Abbreviations
    Abbreviation List The following ABBREVIATIONS are used: ...

    Other materials:

    Body sealing
    Description The following figure shows the areas which are sealed at the factory. Sealant which has been applied to these areas should be smooth and free from cuts or gaps. Care should be taken not to apply an excess amount of sealant and not to allow other unaffected parts to come into cont ...

    Precautions in repairing high strength steel
    High Strength Steel (HSS) High strength steel is used for body panels in order to reduce vehicle weight. Accordingly, precautions in repairing automotive bodies made of high strength steel are described below: SP130 is the most commonly used HSS. Read the following precautions when re ...

    P0182, P0183 FTT Sensor
    Description The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in te ...