Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car



Audi 80/90/Coupe
+ 1.2. Identification of the car
+ 2. Engines, carburetors
3. Lubrication system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. System of ignition
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Air conditioning system
- 14. Electric equipment
   + 14.1.2. Thermoswitch, electronic thermoswitch
   + 14.2. Electrical wiring
   - 14.3. Electrical circuitries
      + 14.3.2. Cooling system
      + 14.3.3. Engine electric equipment with multipoint injection
      + 14.3.4. Motronic engine electric equipment
      + 14.3.5. Electronic ignition
      + 14.3.6. Power supply
      + 14.3.7. Mechanism of blocking of differential (Quattro model)
      + 14.3.8. 4-speed automatic transmission
      + 14.3.9. System of anti-blocking of brakes (model with the forward drive)
      + 14.3.10. Central lock
      + 14.3.11. Dashboard
      - 14.3.12. Air conditioning system
         14.3.12.1. Index of connections, points of grounding, connection of wires
      + 14.3.13. Radio tape recorder
      + 14.3.14. Headlights of forward light
      + 14.3.15. Stoplight






14.3.12.1. Index of connections, points of grounding, connection of wires

GENERAL INFORMATION

Index of connections

Models with the 4-cylinder engine

T1h – one-terminal connection of the plait of wires located on the right side of a motive compartment

Color: white

T1i – one-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T1j – one-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T1r – one-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T2i – two-terminal connection of a plait of wires of control of the compressor of the air conditioning system

T3d – three-terminal connection of the plait of wires located on the right side of a motive compartment (except models of 1988)

Color: red

T3h – three-terminal connection of a plait of wires of the dashboard

Color: brown

T5s – five-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T6m – six-terminal connection of a plait of wires of the dashboard (except models of 1988)

Color: red

T8e – eight-terminal connection of a plait of wires of the fan

Color: red

T10 – ten-terminal connection of the plait of wires located on the left side of a motive compartment

Color: yellow

Models with the 5-cylinder engine

T1a – one-terminal connection of the plait of wires located on the right side of a motive compartment (model 1988-1990 of years) or connection of a plait of wires of the control unit of the air conditioning system (model after 1991)

T11h – one-terminal connection of the plait of wires located on the right side of a motive compartment

Color: white

T1i – one-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T1r – one-terminal connection of a plait of wires of control of the compressor of the air conditioning system (model 1988-1990 of years) or one-terminal connection of a plait of wires of the automatic transmission (model after 1991)

Color: green

T2i – two-terminal connection of a plait of wires of control of the compressor of the air conditioning system

T3a – three-terminal connection of the plait of wires located on the right side of a motive compartment

Color: brown

T3h – three-terminal connection of a plait of wires of the dashboard

Color: brown

T4 – four-terminal connection of the plait of wires located on the left side of a motive compartment

Color: green

T5 – five-terminal connection of the plait of wires located on the right side of a motive compartment

Color: black

T5s – five-terminal connection of a plait of wires of control of the compressor of the air conditioning system

Color: green

T6m – six-terminal connection of a plait of wires of the dashboard

Color: red

T8 – eight-terminal connection of the plait of wires located on the right side of a motive compartment

Color: red

T8e – eight-terminal connection of a plait of wires of the fan

Color: red

T10 – ten-terminal connection of the plait of wires located on the left side of a motive compartment

Color: yellow

T10a – ten-terminal connection of the plait of wires located on the right side of a motive compartment

Color: black

Grounding points

Models with the 4-cylinder engine

32 – behind the dashboard (on the left side)

81 – the welded connection in a plait of wires of the dashboard

82 – the welded connection in a plait of wires, the motive compartment located on the left side

Models with the 5-cylinder engine

32 – behind the dashboard (on the left side)

50 – in a luggage carrier (on the left side)

82 – the welded connection in a plait of wires, the motive compartment located on the left side

83 – the welded connection in a plait of wires, the motive compartment located on the right side

86 – the welded connection in a back plait of wires

98 – the welded connection in a plait of wires of a trunk lid

Connections of the wires connected to the positive plug of the accumulator

Models with the 4-cylinder engine

A3 – the welded connection for bulbs of illumination of salon in a plait of wires of an instrument guard (plug 58d)

C9 – the welded connection in the right plait of wires of the engine (plug 75a)

L4 – the welded connection in a plait of wires of the fan

Models with the 5-cylinder engine

A1 – the welded connection in a plait of wires of the dashboard (plug 30a)

A2 – the welded connection in a plait of wires of the dashboard (plug 15)

A3 – the welded connection in a plait of wires of an instrument guard (plug 58d)

Bystry check

Check of operation of the switch of the conditioner and compressor:

  – turn on the conditioner;
  – at the same time the coupling of the compressor has to work, having published characteristic click and to set the compressor in motion;
  – switch off the conditioner;
  – at the same time the coupling of the compressor has to be switched-off, having published click.