VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
+ 5. Power supply system
- 6. Ignition system
   6.1. Specifications and characteristics
   6.2. General information
   6.3. Precautionary measures at work with electronic systems of ignition
   6.4. Ignition distributor
   - 6.5. Check of system of ignition
      6.5.1. Check of system of ignition of Digifant
      6.5.2. Check of system of ignition ТС1
      6.5.3. Check of system of ignition of FEI
      6.5.4. Check of system of ignition of KE-Motronic
   6.6. Spark plugs
   6.7. Check and adjustment of a corner of an advancing of ignition
+ 7. Coupling
+ 8. Transmission
+ 9. Drive of forward wheels
+ 10. Suspension brackets
+ 11. Steering
+ 12. Brake system
+ 13. Wheels and tires
+ 14. Systems of heating, ventilation and conditioning
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Ignition system>> Check of system of ignition>> Check of system of ignition of Digifant
Ignition coil
Check of the coil of ignition carry out in the following order:

Fig. 6.17. Check of resistance of a secondary winding of the coil of ignition: 1–ignition coil; 2–the plug of ignition 1 (–); 3–plug 4 (NT); 4–plug 15 (+)


– disconnect electric wires and uncover the coil of ignition 1 (see fig. 6.17 );
– connect a tester between plugs 1 (–) and 15 (+) and check resistance of primary winding of the coil of ignition;
connect a tester between plugs 4 (NT) and 15 (+) and check resistance of a secondary winding of the coil of ignition.

Control unit
Check of the control unit carry out in the following order:

Fig. 6.18. Tension check on the socket (contacts 2 and 4) the control unit


– disconnect the electric socket from the control unit (fig. 6.18) ;
– connect a tester to contacts 2 and 4 on the socket of the control unit and include ignition, thus a tester should show tension of the accumulator;
– switch off ignition and connect the electric socket to the control unit;
– compress fixing uvulas and remove the electric socket from the distributor;
– connect a tester to contacts 1 (–) and 15 (+) on the ignition coil (see fig. 6.17 .);
– include ignition, thus during the first moment tension will make 2 In, and through 1–2 with will decrease to zero. Otherwise replace the control unit;
– disconnect mnogovyvodny the electric socket from the Digifant control unit and connect contact 25 to "weight", thus tension should increase quickly to 2 In;
– switch off ignition, connect mnogovyvodny the electric socket to the Digifant control unit.

Hall sensor

 
     PREVENTION
Check is necessary only in the absence of an iskroobrazovaniye.

Check of the sensor of the Hall carry out in the following order:

Fig. 6.13. Distributor of ignition of Digifant system: 1–high-voltage wires; 2–tips; 3–interference suppressor cover; 4–distributor cover; 5–coal contact; 6–distributor rotor; 7–dustproof cap; 8–electric socket; 9–distributor case; 10-bolt; 11-holder; 12-sealing ring; 13-plug 4; 14-plug 15 (+); 15-the plug 1 (–); 16-ignition coil; 17-grounding tire; 18-tip; 19-spark plug


– compress fixing uvulas and remove the electric socket 8 (see fig. 6.13 ) from the distributor;

Fig. 6.19. Tension check on the socket of the sensor of the Hall


– connect a tester to lateral contacts of the electric socket and include ignition, thus a tester should show tension 10 in ( fig. 6.19 .);
– switch off ignition, connect the electric socket to the distributor;
– disconnect the electric socket from the control unit of system of injection of fuel;

Fig. 6.20. Check of the sensor of the Hall


– shift a rubber cover from the electric socket to the distributor, then to the socket of the sensor attach a light-emitting diode sampler (fig. 6.20) ;
– include a starter and check that the light-emitting diode sampler blinks. Otherwise, replace the distributor.

Digifant control unit
Check of the Digifant control unit carry out in the following order:
– complete check of the block needs the specialized equipment;
– disconnect the electric socket from the control unit of system of injection of fuel;

Fig. 6.21. Digifant control unit check


– connect a light-emitting diode sampler to plugs 1 (–) and 15 (+) ignition coils (fig. 6.21) . Connect double contact of the coil of ignition so that wires were attached to a shielding braid only;
– include a starter and check that the light-emitting diode sampler blinks. Otherwise, replace the control unit.







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