List of abbreviations used in schemes
| latin | |
| A/T | automatic transmission |
| ABS | Anti-lock brake system |
| ACC | Acceleration (tempostat) |
| ACC, ACCY | Ignition key position when parked with appliances turned on |
| ACRLY | Air conditioning relay |
| ASCD | Automatic speed control system |
| B/L | Air supply to the feet |
| BARO | (Sensor) barometric pressure |
| BCM | Body Control Module (see Sec. Transfer of control over the operation of onboard electricity consumers via switched lines) |
| D | Down |
| DEF | Defrosting glasses |
| DLC | Diagnostic socket read database |
| DOHC | Engine type with two distribution overhead shafts |
| DRL | Daytime running lights |
| ECCS | Electronic fuel injection system |
| ECM | The engine control unit (onboard processor) |
| ECT | coolant temperature sensor engine |
| EGR | (System) exhaust gas recirculation |
| EVAP | Evaporative Emission System |
| F/D | Air supply to face level |
| FICD | Fast speed stabilization systems idle move |
| HEAD | head (lights) |
| IAC | (Valve) idle speed stabilization |
| IACV-FICD | System auxiliary air valve fast idle stabilization |
| IAT | (Sensor) intake air temperature |
| INT | Interval mode of operation wipers |
| LO, LOW | Filament low beam incandescent lamp |
| M/T | Manual gearbox |
| MAF | (Sensor) air mass measurement |
| MAP | (Sensor) absolute pressure in the intake manifold |
| N | Neutral (average) switch position |
| O/D | overdrive (AT) |
| OFF | Position "Turned off" switch (castle ignition) |
| ON | Position "Included" switch (castle ignition) |
| ONLY | Only |
| PARK | Position «parking» |
| POS | Crankshaft Position POS Sensor (see Section Checking the condition and replacing the crankshaft position sensor (TFR)) |
| PSP | (Sensor-switch) system pressure power steering |
| REF | Crankshaft Position Sensor REF (see Section Checking the condition and replacing the crankshaft position sensor (TFR)) |
| RUN | The position of the ignition switch when running engine |
| SOHC | Engine type with one camshaft top position |
| SRS | Additional security system (pillows security) |
| START | Position of the ignition switch when starting the engine |
| TCS | Anti-slip systems |
| TPS | Throttle position sensor |
| U | Up |
| UNLOCK | Unlock |
| VSS | Vehicle speed sensor |
| Russians | |
| λ probe | Oxygen sensor |
| AT | automatic transmission |
| timing | Gas distribution mechanism |
| D/V and D/Switch | Sensor-switch |
| K/V | air conditioner |
| K/P | Switch valve |
| M/off | microswitch |
| P/P | semiconductor device |
| RKPP | Manual gearbox |
| S/bl | Connection block (connector) |
| E/M and E/mag. | Electromagnetic |
| e/motor | electric motor |
Designations of colors of electrical wiring insulation
| BLK | Black |
| BLU | Blue |
| BRN | Brown |
| GRN | Green |
| GRY | Grey |
| LT | Light (shade) |
| NCA | Any |
| OR | Or |
| ORG | Orange |
| PNK | Pink |
| PPL | Purple |
| RED | Red |
| TAN | Golden |
| VIO | Violet |
| WHT | White |
| YEL | Yellow |
Example: LT GRN/PNK OR RED/TAN = Light Green with Pink Stripe or Red with Gold Stripe.
Wiring diagram notes
Due to limited space, it is not possible to include in this manual the wiring diagrams of the electrical equipment systems of all models under consideration. For this reason, only the most typical diagrams are given below, allowing you to understand in detail the principle of operation of the main electrical equipment systems and on-board electrical consumers.
The wiring diagrams below are drawn up according to the schematic principle, when the components of each circuit are connected to each other along the shortest path, without taking into account the shape of the wiring around the components and bundles located along the route.
On Nissan vehicles, a single-wire circuit for switching on electrical equipment is used. Consumers are connected to the plus of the power sources by a wire, and to the minus - through the car body or to ground. This method allows you to reduce the number of wires and simplify their installation. Ground connection of power sources reduces electrochemical corrosion of metal parts of the body. In some cases, a direct connection of the electrical consumer to the ground is not enough, and the consumer is connected to the ground with an additional wire, usually brown.
The supply voltage to most consumers is supplied through the ignition switch. The power circuits of those electrical equipment components, the operation of which may be required in any circumstances, are always connected to the battery, regardless of the position of the key in the ignition switch.
To connect the wires, electrical connectors with flat contacts are used.
For normal power supply to consumers, the electrical circuit must be closed, since otherwise an electric current will be present in it, for example, if a positive voltage is applied to the wiper motor, it will not work until its electrical circuit is connected to ground. Switches, relays, fuses, measuring devices, electric motors and other consumers of electricity can be connected to the electrical circuit. For the correct connection of electricity consumers, the contacts of the electrical connectors are marked accordingly. The connection to the vehicle ground is carried out either directly through the housing of the consumer of electricity or by an additional wire.
To prevent electrical shock or fire from an accidental short circuit, disconnect the negative cable from the battery before servicing the onboard electrical components. Regularly check the condition of the wiring harnesses and the reliability of their fastening in intermediate clamps, clamps and strappings. Make sure that the wire insulation does not fray when in contact with components located adjacent to the harness.
Warning! The car models covered in this manual are equipped with an additional security system (SRS). Before doing any work near the airbag unit, steering column or instrument panel, turn off the SRS to avoid injury if it is accidentally deployed (see Section Airbags - general information). SRS circuit wiring is easily identified by the yellow color of the insulation.
If the stereo system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the audio system!
Contact 30. Positive battery voltage is always present on this pin. Wires connected to this pin are red or red with a stripe.
Contact 31. The contact is connected to the vehicle ground with a brown wire.
Contact 15. This pin is positive when the ignition is turned on. Wires connected to this pin are green or green with a stripe.
Contact H. The contact is energized after the ignition is turned on, but when the starter is turned on, the voltage is turned off. This makes it possible, when starting the engine, to turn off consumers of electricity that are unnecessary at that moment. The high beam headlights are also powered by this contact, so when the high beam is on and the ignition is turned off, it automatically switches to the parking lights.
Wire colors are indicated by Latin letters.
If there are several letters in the designation of the wire color, separated by the sign /, then the left group of letters indicates the main color of the wire, and the right group indicates the color of the strip.
In the diagram, all current consumers and switches are shown in the neutral position.