Mazda 323

since 1985 release

Repair and operation of the car

Mazda 323

+ Introduction
+ Petrol engines
+ Engine lubrication system
+ Engine cooling system
+ System of ignition
+ Power supply system, carburetor, system of injection of fuel
+ Diesel engine
+ System of production of the fulfilled gases
+ Coupling
+ Manual transmission
+ Automatic transmission
+ Suspension bracket and system of steering
+ Brake system
+ Wheels and tires, body, coloring of the car, care of the car
- System of electric equipment
   Search of malfunctions of electric system
   Check of the switch on a current transmission
   Check of the relay
   Check of the motor of a screen wiper
   Verification of indexes of turn
   Check of stoplights
   Check of a heater of back glass
   Separation and connection of cable plugs
   Arrangement of safety locks
   Replacement of safety locks
   Removal and installation of the battery
   Check of the battery
   The battery is discharged in itself
   Battery charging
   Storage of the battery
   Security measures for the generator of alternating current
   Check of tension of the generator
   Removal and installation of the generator
   Generator components
   Dismantling generator/replacement of coal brushes
   Removal and installation of a starter
   Check/replacement of the traction relay of a starter
+ Heater, system of lighting, devices
+ Governing bodies and methods of operation
+ Electric circuits

Check of the switch on a current transmission

Most of consumers of the electric power join and switched off by the switches put in action by a hand. Also there are switches put in action automatically. The sensor of pressure of oil and the sensor of level of brake fluid belong to these switches, for example. Main objective of the switch short circuit and disconnection of a current contour. There are switches disconnecting a weight contour, and the switches disconnecting a plus contour.

Check of switches of lamps and electric motors


  1. To remove the corresponding switch.
  2. Simple switches have only 2 contacts for cables. In this case on one contact tension (+), and after inclusion and on other contact too always has to move. Also there are switches with several contacts. For these switches to determine by the scheme to what plug tension has to be put, if necessary previously include ignition.
  3. To check the indicator whether tension is put to the switch. If the lamp of the indicator burns, to turn on the switch and to check whether there is tension on the output plug. If tension is, so the switch is serviceable.
  4. If on the entrance plug tension is absent, in conducting there is a break. Wires should be checked according to the scheme, if necessary to lay a new wire.

Check of switches sensors

The oil pressure sensor, sensors of level of brake and cooling liquid belong to switches sensors, for example.


  1. To connect the indicator or an ohmmeter to entrance and output wires of the sensor, for this purpose to disconnect cables on the switch.

The switches which are screwed in in the block of cylinders, as a rule, of the plug of weight have no as the pole of weight is served by the switch case.

  1. At the closed switch the indicator has to show course of current. Best of all the ohmmeter is suitable for check: At the closed switch it has to show 0 Ohms, at the opened sensor infinity of Ohms.
  2. Serviceability of sensors of level of the cooling and brake fluid most quicker can be checked, having disconnected at the included ignition a wire from the sensor, to close it on weight, for example, on the block of cylinders. If the alarm lamp on a guard of devices lights up, malfunction is concluded in the sensor.
  3. Special case — the oil pressure sensor: On the idle engine the contact is closed (the alarm lamp burns), the sensor is disconnected with a certain pressure of oil.