Mazda 626

1991-1998 of release

Repair and car operation



Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Heating and ventilation
+ 5. Fuel system
- 6. Exhaust system
   + 6.1. Exhaust system
   - 6.2. Systems of decrease in toxicity of exhausts and management of operation of the engine
      6.2.1. Introduction
      6.2.2. System of self-diagnostics and malfunction codes
      6.2.3. Central control unit
      6.2.4. Sensor of provision of a butterfly valve
      6.2.5. Sensor of a stream of air
      6.2.6. The sensor of temperature of arriving air
      6.2.7. The sensor of temperature of cooling liquid
      6.2.8. Sensor of provision of a cranked shaft
      6.2.9. Sensor of provision of a camshaft
      6.2.10. Switch of system of hydrostrengthening of a steering
      6.2.11. Oxygen sensor
      6.2.12. Sensor of detonation combustion of fuel
      6.2.13. Sensor of speed
      6.2.14. Air valve
      6.2.15. System of additional supply of air on low turns
      6.2.16. System of ventilation of a case
      6.2.17. System of a retsirkulyatsiya of exhaust gases
      6.2.18. Collecting system паров fuels
      6.2.19. Switch of fires of a stoplight
      6.2.20. Catalytic converter
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electroschemes
+ 14. Good advice
Тарифы на междугороднее такси.


6.2.2. System of self-diagnostics and malfunction codes

GENERAL INFORMATION

Control and measuring equipment

For check of systems of injection of fuel and decrease in toxicity of exhausts it is necessary to use digital universal instrumentations as they have big accuracy of measurements and bigger resistance of an internal contour.

Manual scanners are the most convenient and universal devices for check of control systems by operation of the engine on models of later years of release.

OBD-I systems (models till 1995 of release)

The electronic control unit has the built-in system of self-diagnostics (On Board Diagnosis (OBD) system) which serves for search of malfunctions in system and includes a control bulb of the engine on an instrument guard in case of detection of malfunctions. The code of malfunction remains in memory of the electronic control unit and is available to reading.

Reading of codes of malfunction of OBD-I systems

For reading written down in memory of the electronic control unit of codes of malfunction connect STI and GND plugs of the diagnostic socket of connection.

Connect the voltmeter to the car STO and "masse" plug. Include ignition and count up number of a deviation of an arrow of the device or blinkings of a control bulb of the engine. For example, the code 34 will be deduced as 3 long blinkings of a bulb, a pause, 4 short blinkings.

Cleaning of codes of malfunction of OBD-I system

For cleaning of codes of malfunction disconnect a wire of the minus plug of the accumulator and squeeze out a brake pedal more long, than for 5 seconds.

Codes of malfunction of OBD-I systems (model of 1993-1995 of release, except models 1994 and 1995 of years of release with the 4-cylinder engine and an automatic transmission)

MALFUNCTION CODE
FAULTY ELEMENT OR SYSTEM
02
Sensor of provision of a cranked shaft
03
Sensor of provision of a camshaft
08
Sensor of a stream of air
09
The sensor of temperature of cooling liquid
11
Air temperature sensor
12
Sensor of provision of a butterfly valve
15
Oxygen sensor
16
Sensor of the valve of a retsirkulyatsiya of exhaust gases
17
The oxygen sensor (check a power supply system and ignitions)
25
Valve of pressure of fuel
26
Blowing-off valve
28
Valve of a retsirkulyatsiya of exhaust gases
29
Ventilating valve of system of a retsirkulyatsiya of exhaust gases
34
Air valve of system of idling
67
Relay of the fan of cooling

Codes of malfunction of OBD-I systems (model 1994 and 1995 of years of release with the 4-cylinder engine and an automatic transmission)

MALFUNCTION CODE
FAULTY ELEMENT OR SYSTEM
111
Lack of codes of malfunction
112, 113
Air temperature sensor
116, 117, 118
The sensor of temperature of cooling liquid
121, 122, 123
Sensor of provision of a butterfly valve
157, 158, 159
Sensor of a stream of air
172, 173, 179, 181
Oxygen sensor
211, 212, 213
Ignition system
214, 244
Sensor of provision of a camshaft
327, 332, 337
Sensor of system of a retsirkulyatsiya of exhaust gases
411, 412
Air valve of system of idling
452
Sensor of speed
511, 512, 513
Central control unit
519, 521
Switch of system of hydrostrengthening of a steering
522
Sensor of an automatic transmission
536
Switch of fires of a stoplight
538
Dynamic test
539
Conditioner sensor
554
Valve of adjustment of pressure
559
Conditioner relay
563
Relay (high speed) cooling fan
564
Relay (low speed) cooling fan
565
Blowing-off valve
571
Ventilating valve of a retsirkulyatsiya of exhaust gases
572
Vacuum valve of system of a retsirkulyatsiya of exhaust gases
998
Central control unit

OBD-II systems (models since 1996 of release)

Diagnostic socket of connection of OBD-II system

The socket is located under the dashboard on the party of the driver.

Models since 1996 of release have system of self-diagnostics of the second generation of OBD-II. Access to the electronic control unit of this system can be received only by means of the special scanner which is necessary for connecting to the 16-shtyrkovy diagnostic socket of connection located under the dashboard. At failure detection the electronic control unit includes an alarm bulb on an instrument guard and keeps a malfunction code in memory.

Reading of codes of malfunction of OBD-II system

For reading of codes of malfunction of OBD-II system use the special scanner which is necessary for connecting to the diagnostic socket of connection. If the scanner is not present, it is necessary to address to experts.

Cleaning of codes of malfunction of OBD-II system

For cleaning of codes of malfunction of OBD-II system it is necessary to use the special scanner.

Codes of malfunction of OBD-II system

MALFUNCTION CODE
FAULTY ELEMENT OR SYSTEM
Р0100, Р0102, Р0103
Sensor of a stream of air
Р0110, Р0112, Р0113
Air temperature sensor
Р0115, Р0117, Р0118
The sensor of temperature of cooling liquid
Р0120, Р0122, Р0123
Sensor of provision of a butterfly valve
Р0125
For transition to the closed operating mode too much time is required
Р0130, Р0131, Р0150
Oxygen sensor
Р0133, Р0134, Р0140
Slow reaction of the oxygen sensor
Р0154, Р0160
Slow reaction of the oxygen sensor
Р0135, Р0141, Р0155
Heating element of the oxygen sensor
Р0170, Р0171
Poor fuel mix
Р0172, Р0173
The oversaturated fuel mix
Р0230, Р0231, Р0232
Fuel pump
Р0300
Casual admission of ignition
Р0301
The ignition admission in the N1 cylinder
Р0302
The ignition admission in the N2 cylinder
Р0303
The ignition admission in the N3 cylinder
Р0304
The ignition admission in the N4 cylinder
Р0305
The ignition admission in the N5 cylinder
Р0306
The ignition admission in the N6 cylinder
Р0320
Ignition system
Р0335
Sensor of provision of a cranked shaft
Р0340
Sensor of provision of a camshaft
Р0400
The system of a retsirkulyatsiya of exhaust gases is littered
Р0420, Р0430
Catalytic converter
Р0440
Collecting system паров fuels
Р0443
Blowing-off valve
Р0500, Р0503
Sensor of speed
Р0505
Air valve of system of idling
Р0510
Switch of system of idling
Р0552, Р0553
Switch of system of hydrostrengthening of a steering
Р0603
Error of the RAM
Р0605
Error of ROM
Р0703
Switch of fires of a stoplight
Р0704
The switch on a coupling pedal
Р0705
Transmission sensor
P0710-P0760
Control system of a transmission