VW Passat B5

since 1996 release

Repair and operation of the car

Foltsvagen Passat B5
+ Maintenance instruction
+ 1. Maintenance
+ 2. Engines
+ 3. Cooling system
+ 4. Fuel system
+ 5. Engine management
+ 6. Exhaust system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Heating, ventilation
- 13. Electric equipment
   13.2. General information
   + 13.3. Electric chains
   13.4. Safety locks
   13.5. Rules of care of the accumulator
   13.6. Check of the accumulator
   13.7. Accumulator charging
   13.8. Accumulator
   13.9. System of charging
   13:10. Generator
   13:11. Replacement of brushes of the generator and regulator of tension
   13:12. System of start of the engine
   13:13. Starter
   13:14. Traction relay of a starter
   13:15. Replacement of bulbs of external lighting
   13:16. Replacement of bulbs of internal lighting
   13:17. Devices of external lighting
   13:18. Executive engine of the proofreader of light of headlights
   13:19. Adjustment of light of headlights
   13:20. Gas-discharge lamps of headlights of passing beam
   13:21. Combination of devices
   13:22. Multipurpose switches of a steering column
   13:23. Switches
   13:24. Radio receiver
   13:25. High-frequency loudspeakers
   13:26. Low-frequency loudspeakers
   13:27. Antenna
   13:28. Check of a heater of back glass
   13:29. Windshield screen wiper engine
   13:30. Engine of a screen wiper of back glass
   13:31. Windscreen washer pump
   13:32. System of the central blocking of locks
   13:33. Main malfunctions of the generator
   13:34. Main malfunctions of a starter
   - 13:35. Electric circuits
      13.35.2. Arrangement of the relay and safety locks
      13.35.3. Symbols on electric circuits
      13.35.4. Symbols of elements on electric circuits
      13.35.5. The accumulator, the lock of ignition and the relay of an overload for H-contact
      13.35.6. Diagnostic socket, lamps of the generator and combination of devices
      13.35.7. Combination of devices, hours, counter of a run and buzzer of lighting
      13.35.8. Control lamps of the brake system, external lighting
      13.35.9. Combination of devices, indicator, air temperature sensor
      13.35.10. Lamp of the emergency brake and sensor of level of liquid of windscreen washer
      13.35.11. Switch of turns, light alarm system (left side)
      13.35.12. Switch of the light alarm system and lamps (right side)
      13.35.13. Stoplight switch, stoplights and back turns
      13.35.14. Radio receiver socket, lighter and illumination of devices
      13.35.15. Regulator of intensity of illumination of devices
      13.35.16. Switch and illumination of a ware box
      13.35.17. Fog lights, switch and back dimensional lighting
      13.35.18. Two-tone sound signal and relay of a signal
      13.35.19. Switch and engines of management of air recirculation
      13.35.20. Switch and heater of back glass
      13.35.21. Screen wipers of wind and back glass, relay of screen wipers
      13.35.22. Switch of screen wipers and pump of a washer of glasses
      13.35.23. Accumulator, starter and generator
      13.35.24. Control system of the Motronic engine, alarm system
      13.35.25. Throttle, detonation sensors, air temperatures (Motronic engine)
      13.35.26. Motronic engine, RPM meters of a bent shaft and detonation
      13.35.27. Motronic engine, measuring instrument of a stream of air, relay of the fuel pump
      13.35.28. Oxygen sensor, valve of turn of the camshaft (Motronic)
      13.35.29. Sensors of pressure of oil, speed, fuel system
      13.35.30. Control lamps of pressure of oil, temperature, buzzer
      13.35.31. Accumulator, starter, generator and glow plugs
      13.35.32. Compulsory inclusion of a low gear, accelerator sensor
      13.35.33. Air stream measuring instrument, engine stop valve
      13.35.34. Sensors of provision of pedals of an accelerator and coupling
      13.35.35. Relay and candles of heating of cooling liquid, oil pressure sensor
      13.35.36. Oil pressure sensor, fuel system, relay
      13.35.37. Combination of devices

13:35. Electric circuits

13.35.1. General information


Electric circuit of the switch

On the Passat cars the single-wire scheme of turning on of devices of electric equipment is applied. To plus of power supplies consumers unite a wire, and to minus – through a body of the car or on weight. Such method allows to reduce number of wires and to simplify their installation. Connection with the mass of minus of power supplies reduces wear of metal details of a body because of electrochemical corrosion. In certain cases direct connection of the electric consumer with weight is not enough, and the consumer unites to weight an additional wire of usually brown color.

Supply voltage is brought to most of consumers via the ignition switch. Power-supply circuits of those knots of electric equipment which work can be required under any circumstances are always connected to the rechargeable battery, irrespective of the provision of a key in the ignition lock.

For connection of wires electric sockets with flat contacts are used.

For normal food of consumers the electric chain has to be closed, otherwise in it there will be no electric current, for example, if to the electric motor of a screen wiper positive tension moves, it will not work until its electric chain is not connected to weight. In an electric chain switches, the relay, safety locks, measuring devices, electric motors and other consumers of the electric power can be connected. For the correct connection of consumers of the electric power contacts of electric sockets have the corresponding markings. For simplification of use of the electric circuit separate electric chains are located vertically and numbered. The lower line on the scheme is a mass of the car. Connection with the mass of the car is carried out or directly via the case of the consumer of the electric power or an additional wire. Under the lower line of weight on electric circuits there are coordinates on which, using a key, it is possible to define an electric chain or an element.

Numbers on the electric circuit in black rectangles on the end of a wire show the coordinate on which it proceeds. Also in this coordinate the back link is had.

During the work with the electric circuit it is necessary to know alphabetic and graphic symbol of electric elements.

Interpretation of alphabetic reference of elements

And – the accumulator

In – a starter

With – the generator

D – ignition switch

Е – switch

F – mechanical switch

G – sensor, measuring device

N – a sound signal

J – relay

K, L, M, W, X – lamps, control lamps

N – electromagnetic valves, resistors, switchboards

About – the ignition distributor

Р, Q – spark plugs

R – radio receiver

S – safety locks

T – electric sockets

V – electric motors

Near alphabetic reference there is a digital designation.

For identification of the relay and control units they are led round by a frame. Lines in a frame represent internal connection in the block.

The white figure in a black square designates number of the relay on the relay block. Figures about the relay designate numbers of contacts of the relay, for example, designation 17/87 demonstrates that figure 17 is a designation of contact on a payment, and figure 87 is a designation of contact of the relay.

Contact 30. At this contact there is always positive tension of the accumulator. The wires connected to this contact have color, red or red with a strip.

Contact 31. The contact connects to the mass of the car a wire of brown color.

Contact 15. On this contact positive tension after inclusion of ignition moves. The wires connected to this contact have color, green or green with a strip.

Contact of X. On contact tension after inclusion of ignition moves, however at inclusion of a starter tension is disconnected. It gives the chance at start of the engine to disconnect consumers of the electric power, unnecessary at this moment. High beam headlamps receive food also from this contact therefore at the turned-on driving beam and switching off of ignition there is an automatic switching to marker lights.

Wires are designated by figures and letters located under them.

Figures designated the section of the conductor in mm2, and letters – its color. If in designation of color of a wire there are several groups of letters, then the first group of letters points to primary color of a wire, and the second – to color of a strip.

On plaits of the wires connected one - or the multicontact socket the combination from figures is added to a letter "T".

For example:

T2r = two-contact socket,

= 32 contact I will corrode E32/27 with a connection 27 point.

On the scheme all consumers of current and switches are represented in neutral situation. The changed current characteristic, after impact on the switch, is interpreted on the example of the two-level switch, see rice. Electric circuit of the switch.

At turn of the switch in the first situation, current proceeds from contact 82 to contact 83. The second section to la's pereklyuchata is also established in average situation, however does not close contacts. Only at turn of the switch in the second situation current begins to proceed from contact 82 to contact 84 and comes further to the scheme. At the same time due to internal connection, current also continues to proceed from contact 82 to contact 83.


The safety lock designated on the block of safety locks at No. 24 on electric circuits of the car is designated by number 224, that is on electric circuits figure 2 is ahead added to number of a safety lock.

The plan of electric circuits (VW Passat with 8/97)

The capital equipment, with 8/97
In total
1 – 18
1,8-I/92 kW (125 hp) with 8/97
19 – 26
1,9-I/66/81 kW (90/110 hp) with the transmission with 8/97
27 – 35
System of adjustment of the speed (GRA) with 10/96
36 – 37