Nissan Maxima QX

since 1993 release

Repair and operation of the car


Nissan Maxima QX
+ Cars of the Nissan Maxima brand
+ Maintenance instruction
+ Settings and routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
- Control systems of the engine
   General information
   System of onboard diagnostics (OBD) - the principle of functioning and codes of malfunctions
   Removal and RSM installation
   Check of serviceability of a state, replacement and adjustment of the sensor of provision of a butterfly valve (TPS)
   Check of a state and replacement of the sensor of measurement of mass of an air stream (MAF)
   Check of a state and replacement of the sensor of absolute pressure in the pipeline (MAR)
   Check of a state and replacement of the sensor of temperature of the soaked-up air (IAT)
   Check of a state and replacement of the sensor of temperature of cooling liquid of the engine (EST)
   Check of a state and replacement of the sensor of provision of a bent shaft (ICR)
   Check of a state and replacement of the sensor of position of the camshaft (SMR)
   Check of a state and replacement of the sensor switch of pressure in system of hydrostrengthening of a wheel (PSP)
   Check of a state and replacement of the oxygen sensor (l-probe)
   Check of a state and replacement of the sensor of a detonation
   Check of a state and replacement of the sensor of temperature of fuel of speed of the movement of the car (VSS)
   Check of a state and replacement of the sensor of speed of the movement of the car (VSS)
   Check of a state and replacement of components of system of stabilization of turns of idling
   Control system of functioning of the power valve
   System of the operated ventilation of a case (PCV)
   System of recirculation of the fulfilled gases (EGR) - the general information, check of a state and replacement of components
   System of catching of fuel evaporations (EVAP) - the general information, check of a state and replacement of components
   The catalytic converter - the general information, check of a state and replacement
+ Transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Check of a state and replacement of the sensor of speed of the movement of the car (VSS)

VSS is established on a case of transmission and represents the sensor with a variable magnetic resistance. The sensor develops a sinusoidal signal of alternating current which frequency is proportional to the speed of the movement of the car. Information arriving from VSS RSM at management of duration of time of opening of injectors of injection of fuel are used and switching of transmission. Besides, VSS is used as the speedometer drive. The failure of the sensor leads to record in memory of OBD of the corresponding codes of malfunction.

CHECK

 PERFORMANCE ORDER

 Serviceability of functioning of VSS can be checked on adequacy of indications of a speedometer.

1. Remove VSS from a transmission case.

2. Connect the voltmeter to two plugs of the sensor and switch the measuring instrument to the mode measurement of alternating voltage. Begin to rotate manually a driving gear wheel of the sensor, - the voltmeter has to register a signal with an amplitude about 0.5 V.

3. In the absence of alarm tension the sensor is subject to replacement.
4. At positive results of the check described above check for break an electrical wiring on the site of a chain between the VSS socket and an instrument guard (see schemes of electric connections at the end of the Head Onboard electric equipment). If an electrical wiring as it should be, drive away the car on car repair shop for performing diagnostics of RSM and performance of the corresponding recovery repair.

REPLACEMENT

 PERFORMANCE ORDER

1. The car also establish to Poddomkratta it on props.
2. Disconnect an electrical wiring from the speed sensor.

3. Having turned out a coupling bolt, weaken a collar and take VSS from transmission.

4. Check a condition of a landing sealing ring of the sensor, in case of need make replacement.

5. Installation is made upside-down.