Mazda 3 since 2003
1. Operation and maintenance of the car
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.5.1. Control system
2.5.2. Principle of work and purpose of some components of a control system
2.5.2.1. Sensor of provision of a cam-shaft (SMR)
2.5.2.2. Sensor of provision of a cam-shaft (ICR)
2.5.2.3. Regulator of idling (IAC)
2.5.2.4. Management of an air duct with variable characteristics (VAD)
2.5.2.5. System of start-up with variable characteristics (VIS)
2.5.2.6. A control system of hashing of air on an admission (VTCS)
2.5.2.7. Control of the mechanism of change of phases of gas distribution
2.5.2.8. Management of fuel injection
2.5.2.9. Management of switching off of the air conditioning system
2.5.2.10. Control of the electric fan
2.5.2.11. Local network of the controller (CAN)
2.5.2.12. System of onboard diagnostics
2.5.3. Codes of malfunctions
2.6. The Z6 engine – a mechanical part
2.7. Lubrication system
2.8. Cooling system
2.9. System of an admission
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. System of ignition
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








d925ae9b




2-5-2-12-sistema-bortovojj-diagnostiki.html

2.5.2.12. System of onboard diagnostics

The design and work of system of onboard diagnostics is in essence borrowed from the modern MPV (LW) model with the GY/FS engine, except for the conditions given below.
Diagnostic codes, controlled parameters and parameters of modeling are changed according to rules.
KOEO/KOER self-checking function is introduced. Therefore the existing malfunction or successful repair are confirmed at once.
Process of storage of incomplete codes is changed as follows.

1 type of a riding cycle
On the modern MPV (LW) model with the GY/FS engine incomplete codes are inaccessible. In the Mazda 3 model (GG), however, the incomplete code is remembered in the PCM block during a riding cycle.

2 type of a riding cycle
On the modern MPV (LW) model with the GY/FS engine incomplete codes are erased at record of diagnostic codes. In the Mazda 3 model (GG) even if the diagnostic code remains, the PCM block does not erase an incomplete code before emergence of the normal state (malfunction is eliminated).
The operating mode of a control lamp of MIL of a riding cycle 2 types is changed as follows:

Mazda 3 model (GG)
The PCM block decides that in the first riding cycle there is a malfunction when the diagnostic code which was written down in the PCM block during the previous riding cycles is found.

Modern MPV (LW) with the GY/FS engine
The PCM block decides that malfunction is available in the second riding cycle.

"previous page
2.5.2.11. Local network of the controller (CAN)
following page"
2.5.3. Codes of malfunctions