Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
7.1. General information
7.2. Power supply system
7.3. Generator
7.4. Starter
7.5. Relay blocks, sockets and safety locks
7.5.1. Removal and installation of the control unit of a combination of devices
7.5.2. Multicontact sockets in the control unit of a combination of devices
7.5.3. Removal and installation of the block of safety locks
7.5.4. Removal and installation of the control unit of onboard network
7.5.5. Removal and installation of the 9-nested block of the relay
7.5.6. Removal and installation of the 3-nested block of the relay
7.5.7. Removal and installation of the 4-nested block of the relay
7.5.8. Removal and installation of the left shtekerny block
7.5.9. Removal and installation of the central control unit of the Komfort system
7.5.10. Removal and installation of the right shtekerny block
7.5.11. Removal and installation of a box of the main safety lock in a luggage carrier behind at the left – the Audi RS4
7.5.12. Removal and installation of the block of the main safety lock – cars with the accumulator in a motor compartment
7.5.13. The general instructions on repair electricians of the car
7.5.14. Repair of wires of the tire of CAN
7.5.15. Break of a wire with repair in two places
7.5.16. Repair of contacts in cases of sockets
7.5.17. Mechanical blocking of the case of the socket
7.5.18. Round contacts
7.5.19. Flat contacts with asymmetrical lock uvulas
8. Body
9. Schemes of electric equipment
 







7-5-2-mnogokontaktnye-razemy-v-bloke-upravleniya-kombinacii-priborov.html

7.5.2. Multicontact sockets in the control unit of a combination of devices

NOTE
Everything the control alarm system on a combination of devices is carried out by light-emitting diodes. At refusal of one signaling device it is necessary to replace the control unit of a combination of devices (fig. 7.81).

Purpose of contacts in multicontact sockets in the control unit of a combination of devices

Fig. 7.82. Multicontact socket 32 of contact, blue color: 1 – indication of insufficient amount of liquid in a windscreen washer tank; 2 – level of cooling liquid is lower than norm; 3 – fuel level sensor; 4 – temperature of cooling liquid; 5 – field of keys 2 navigation; 6 – field of keys 3 navigation; 7 – field of keys x Telematik system; 8 – menu of the switch; 9 – it is not busy; 10 – engine cowl switch; 11 – fuel level sensor 2; 12 – menu of the switch (Out A/exit And); 13–15 – it is not busy; 16 – FDR/ASR (ESP); 17 – tire CAN comfort, High wire; 18 – tire CAN comfort, Low wire; 19 – tire CAN-Infotainment, Low wire; 20 – tire CAN-Infotainment, High wire; 21 – external temperature, entrance; 22 – S-contact; 23 – oil oil/temperature level; 24 – adjustment of level; 25 – menu of the switch (Enter); 26 – it is not busy; 27 – it is not busy; 28 – the menu of the switch (an Out B/exit In); 29 – it is not busy; 30 – transponder 2; 31 – transponder 1; 32 – plug 31 (sensor)


The multicontact (32-contact) socket of blue color is shown in fig. 7.82.

Fig. 7.83. Multicontact socket 32 of contact, green color: 1 – plug 58d; 2 – plug 30; 3 – plug 15; 4 – it is not busy; 5 – tachometer, entrance; 6 – tachometer, exit 2; 7 – safety cushion, invertor; 8 – right index of turn; 9 – lack of brake fluid; 10 – left index of turn; 11 – index of turn of the trailer; 12 – CAN drive, Low wire; 13 – CAN drive, High wire; 14 – charging plug 61/control; 15 – it is not busy; 16 – oil 2 pressure; 17 – plug 58s; 18 – plug 31, loading; 19 – plug 31, loading; 20 – it is not busy; 21 – tachometer, exit 1; 22 – ABS control; 23 – K-line; 24 – CAN drive, screen; 25 – switch of a cover of the fuel tank; 26 – diagnostics of the tire of CAN, Low wire; 27 – diagnostics of the tire of CAN, screen; 28 – diagnostics of the tire of CAN, High wire; 29 – proofreader of headlights; 30 – belt lock; 31 – external sound signal; 32 – wear of brake shoes


The multicontact (32-contact) socket of green color is shown in fig. 7.83.

Arrangement of contacts of the fuel level sensor – cars with the forward drive

Fig. 7.84. Purpose of the 4-contact socket of the fuel level sensor: 1 – management of plus of the electric fuel pump; 2 – connection of the sensor of the index of level of fuel with the control unit of a combination of devices (indicator of filling of the fuel tank); 3 – wire of mass of the fuel level sensor (mass of the sensor); 4 – mass of the electric fuel pump


Watch fig. 7.84.

Arrangement of contacts of the fuel level sensor – cars with the four-wheel drive

Fig. 7.85. Purpose of contacts of the 4-contact socket of the sensor of indication of level of fuel: 1 – management of plus of the electric fuel pump; 2 – connection of the sensor of the index of level of fuel with the control unit of a combination of devices (indicator of filling of the fuel tank); 3 – wire of mass of the fuel level sensor (mass of the sensor); 4 – mass of the electric fuel pump


Watch fig. 7.85.

Purpose of sockets of the sensor of temperature of cooling liquid – cars with the turbocharged engine of 1,8 l

Fig. 7.86. Purpose of the 4-contact socket of the sensor of temperature of cooling liquid: 1 – connection of the sensor of temperature of cooling liquid with the control unit of a combination of devices (indication of temperature); 2 – weight


Watch fig. 7.86.

Purpose of sockets of the sensor of temperature of cooling liquid – cars with the 4-cylinder engine of 2,0 l

Fig. 7.87. Purpose of contacts of the 2-contact socket of the sensor of temperature of cooling liquid: 1 – connection of the sensor of temperature of cooling liquid with the control unit of a combination of devices (indication of temperature); 2 – weight


Watch fig. 7.87.


7.5.1. Removal and installation of the control unit of a combination of devices

7.5.3. Removal and installation of the block of safety locks