7.1.1. Assembly block

Fig. 7.3. An arrangement of the relay and safety locks in the assembly block: K1 – the relay of inclusion of cleaners of headlights; K2 – the relay breaker of indexes of turn and the alarm system; K3 – the relay of screenwash; K4 – the relay of control of serviceability of lamps; K5 – the relay of inclusion of window regulators; K6 – the relay of inclusion of sound signals; K7 – the relay of inclusion of heating of back glass; K8 – the relay of inclusion of driving beam of headlights; K9 – the relay of inclusion of passing beam of headlights; F1-F20 – fuses

Fig. 7.1. Scheme of electric equipment of the VAZ-2115-20 cars (left half): 1 – block headlights; 2 – fog lights; 3 – air temperature sensor; 4 – engine cooling system fan electric motor; 5 – the blocks connected to a plait of wires of system of ignition; 6 – switch of a podkapotny lamp; 7 – a block for connection to a sound signal of single-wire type; 8 – sound signal; 9 – the sensor of level of the washing liquid; 10 – sensors of wear of blocks of forward brakes; 11 – oil level sensor; 12 – generator; 13 – podkapotny lamp; 14 – sensor of the index of temperature of cooling liquid; 15 – starter; 16 – rechargeable battery; 17 – relay of inclusion of fog lights; 18 – sensor of level of cooling liquid; 19 – sensor of level of brake fluid; 20 – backing light switch; 21 – motor-reducer of screenwash; 22 – sensor of a control lamp of pressure of oil; 23 – a block for connection to the electric motor of a washer of back glass; 24 – windshield washer electric motor; 25 – combination of devices; 26 – assembly block. Conditional numbering of plugs in blocks: And — blocks of block headlights; In — an electrogasoline pump block; With — blocks of the assembly block, the switch of ignition, a motor-reducer of screenwash; D — a plafond of illumination of salon

Fig. 7.4. The scheme of connections of the assembly block (external figure in designation of a tip of a wire — number of a block, and internal figure — conditional number of the plug): K1 – the relay of inclusion of cleaners of headlights; K2 – the relay breaker of indexes of turn and the alarm system; K3 – the relay of screenwash; K4 – the relay of control of serviceability of lamps; K5 – the relay of inclusion of window regulators; K6 – the relay of inclusion of sound signals; K7 – the relay of inclusion of heating of back glass; K8 – the relay of inclusion of driving beam of headlights; K9 – the relay of inclusion of passing beam of headlights; F1-F20 – fuses

The majority of safety locks and auxiliary relays is in the separate assembly block (fig. 7.3) established in an airinflow box on the left side of the car. Via the assembly block wires of a motor compartment connect to wires of the dashboard and interior of the car. Conditional numbers of plugs in connecting blocks of the assembly block are specified on
fig. 7.1. The scheme of internal connections of the assembly block is submitted in fig. 7.4.
Repair of the assembly block consists in the basic in replacement of printed circuit boards. The pripayka of wires instead of the fused current carrying paths on printed circuit boards is allowed, but only if the rassoyedineniye of printed circuit boards for this purpose is not required.