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
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Control and measuring equipment
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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. |
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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.
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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
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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.
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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)
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MALFUNCTION CODE
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FAULTY ELEMENT OR SYSTEM
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02
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Sensor of provision of a cranked shaft
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03
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Sensor of provision of a camshaft
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08
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Sensor of a stream of air
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09
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The sensor of temperature of cooling liquid
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11
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Air temperature sensor
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12
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Sensor of provision of a butterfly valve
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15
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Oxygen sensor
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16
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Sensor of the valve of a retsirkulyatsiya of exhaust gases
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17
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The oxygen sensor (check a power supply system and ignitions)
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25
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Valve of pressure of fuel
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26
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Blowing-off valve
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28
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Valve of a retsirkulyatsiya of exhaust gases
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29
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Ventilating valve of system of a retsirkulyatsiya of exhaust gases
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34
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Air valve of system of idling
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67
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Relay of the fan of cooling
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Codes of malfunction of OBD-I systems (model 1994 and 1995 of years of release with the 4-cylinder engine and an automatic transmission)
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MALFUNCTION CODE
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FAULTY ELEMENT OR SYSTEM
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111
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Lack of codes of malfunction
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112, 113
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Air temperature sensor
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116, 117, 118
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The sensor of temperature of cooling liquid
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121, 122, 123
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Sensor of provision of a butterfly valve
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157, 158, 159
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Sensor of a stream of air
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172, 173, 179, 181
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Oxygen sensor
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211, 212, 213
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Ignition system
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214, 244
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Sensor of provision of a camshaft
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327, 332, 337
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Sensor of system of a retsirkulyatsiya of exhaust gases
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411, 412
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Air valve of system of idling
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452
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Sensor of speed
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511, 512, 513
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Central control unit
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519, 521
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Switch of system of hydrostrengthening of a steering
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522
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Sensor of an automatic transmission
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536
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Switch of fires of a stoplight
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538
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Dynamic test
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539
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Conditioner sensor
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554
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Valve of adjustment of pressure
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559
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Conditioner relay
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563
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Relay (high speed) cooling fan
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564
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Relay (low speed) cooling fan
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565
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Blowing-off valve
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571
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Ventilating valve of a retsirkulyatsiya of exhaust gases
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572
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Vacuum valve of system of a retsirkulyatsiya of exhaust gases
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998
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Central control unit
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OBD-II systems (models since 1996 of release)
Diagnostic socket of connection of OBD-II system
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The socket is located under the dashboard on the party of the driver.
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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
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MALFUNCTION CODE
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FAULTY ELEMENT OR SYSTEM
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Р0100, Р0102, Р0103
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Sensor of a stream of air
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Р0110, Р0112, Р0113
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Air temperature sensor
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Р0115, Р0117, Р0118
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The sensor of temperature of cooling liquid
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Р0120, Р0122, Р0123
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Sensor of provision of a butterfly valve
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Р0125
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For transition to the closed operating mode too much time is required
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Р0130, Р0131, Р0150
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Oxygen sensor
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Р0133, Р0134, Р0140
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Slow reaction of the oxygen sensor
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Р0154, Р0160
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Slow reaction of the oxygen sensor
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Р0135, Р0141, Р0155
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Heating element of the oxygen sensor
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Р0170, Р0171
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Poor fuel mix
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Р0172, Р0173
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The oversaturated fuel mix
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Р0230, Р0231, Р0232
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Fuel pump
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Р0300
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Casual admission of ignition
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Р0301
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The ignition admission in the N1 cylinder
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Р0302
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The ignition admission in the N2 cylinder
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Р0303
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The ignition admission in the N3 cylinder
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Р0304
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The ignition admission in the N4 cylinder
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Р0305
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The ignition admission in the N5 cylinder
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Р0306
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The ignition admission in the N6 cylinder
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Р0320
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Ignition system
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Р0335
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Sensor of provision of a cranked shaft
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Р0340
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Sensor of provision of a camshaft
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Р0400
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The system of a retsirkulyatsiya of exhaust gases is littered
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Р0420, Р0430
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Catalytic converter
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Р0440
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Collecting system паров fuels
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Р0443
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Blowing-off valve
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Р0500, Р0503
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Sensor of speed
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Р0505
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Air valve of system of idling
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Р0510
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Switch of system of idling
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Р0552, Р0553
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Switch of system of hydrostrengthening of a steering
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Р0603
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Error of the RAM
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Р0605
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Error of ROM
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Р0703
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Switch of fires of a stoplight
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Р0704
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The switch on a coupling pedal
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Р0705
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Transmission sensor
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P0710-P0760
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Control system of a transmission
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