Mazda 3 since 2003
	1. Operation and car maintenance
	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 (SKR)
				2.5.2.3. Regulator of idling (IAC)
				2.5.2.4. Management of an air line with variable characteristics (VAD)
				2.5.2.5. Start-up system with variable characteristics (VIS)
				2.5.2.6. A control system of hashing of air on an admission (VTCS)
				2.5.2.7. Management of the mechanism of change of phases of a gazoraspredeleniye
				2.5.2.8. Management of fuel injection
				2.5.2.9. Management of switching off of central air of air
				2.5.2.10. Management of the electric fan
				2.5.2.11. Local network of the controler (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. Greasing system
		2.8. Cooling system
		2.9. Admission system
		2.10. Fuel system
		2.11. System of production of the fulfilled gases and system of decrease in toxicity
		2.12. Ignition system
		2.13. Control system
		2.14. Tables
	3. Transmission
	4. Running gear
	5. Steering mechanism
	6. Brake system
	7. Onboard electric equipment
	8. Body

2-5-2-10-upravlenie-ehlektricheskim-ventilyatorom.html

2.5.2.10. Management of the electric fan

The PCM block turns on the relay of the fan of system of cooling, No. 1 and No. 2 (with air central air), except for the following conditions:

– the temperature of cooling liquid – is lower than 100 °C;

– central air of air is switched off (with air central air).