Engine cooling system 4B12. Diagram Peugeot 4007 2007 - 2012

Note:

Below are the wiring diagrams for the Peugeot 4007 4B12 engine cooling system to understand the functionality of the individual elements of the system and their relationship.

1. Scheme of operation of the engine cooling system 4B12 Peugeot 4007:

1, 7 - fuse;

2 - air conditioner fan relay;

3 - electric motor of the fan of the conditioner;

4 - electronic control unit ETACS;

5 – fan control relay;

6 - radiator fan motor;

8 - radiator fan relay.

2. Scheme of operation of the engine cooling system 4B12 Peugeot 4007:

1 - input signal (coolant temperature sensor);

2 – CAN 3 connector;

3 - electronic engine control unit;

4 - electronic control unit ETACS;

5 - fuse;

6 - to the distribution system;

7 - ignition switch;

8, 11 - starting circuit;

9, 12 - conjugation circuit;

10 - ignition lock relay;

13 – CAN 1 connector;

14 - air conditioner switch;

15 - control unit for the air conditioning and ventilation system;

16 – processor module;

17 - liquid crystal display;

18 – transmission line circuit;

19 - rheostat;

20 – a combination of devices;

21 - diagnostic connector;

22 - chain for cars with left-hand drive;

23  – a chain for cars with the right arrangement of a wheel;

24, 27 – analog interface circuit;

25 - starting circuit;

26 - conjugation circuit;

28 - electronic control unit ETACS;

29 – CAN 2 connector;

30 - input signal (speed sensor of the secondary shaft of the gearbox);

31 - electronic control unit for a stepless variator CVT.

Source : Operation, maintenance and repair manual for Mitsubishi Outlender XL, Peugeot 4007, Citroen C-Crosser