VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
+ 5. Power supply system
- 6. System of ignition
   6.1. Specifications and characteristics
   6.2. General information
   6.3. Precautionary measures during the 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 of TC1-H
      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



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Repair Volkswagen Passat B3-B4/Passat B3-B4>> System of ignition>> Check of system of ignition>> Check of system of ignition of Digifant
Ignition coil
Carry out check of the coil of ignition 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 (HT); 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 (HT) and 15 (+) and check resistance of a secondary winding of the coil of ignition.

Control unit
Carry out check of the control unit in the following order:

Fig. 6.18. Check of tension 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, at the same time the tester has to show accumulator tension;
– switch off ignition and connect the electric socket to the control unit;
– squeeze the 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, at the same time at the first moment tension will make 2 V, and through 1–2 with will decrease to zero. Otherwise replace the control unit;
– disconnect the multioutput electric socket from the Digifant control unit and connect contact 25 to "weight", at the same time tension about 2 V have to increase quickly;
– switch off ignition, connect the multioutput electric socket to the Digifant control unit.

Hall's sensor

 
     PREVENTION
Check is necessary only in the absence of sparking.

Carry out check of the sensor of Hall in the following order:

Fig. 6.13. Digifant system ignition distributor: 1 – high-voltage wires; 2 – tips; 3 – interference eliminator 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


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

Fig. 6.19. Check of tension on the socket of the sensor of Hall


– connect a tester to side contacts of the electric socket and include ignition, at the same time the tester has to 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 Hall


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

Digifant control unit
Carry out check of the Digifant control unit in the following order:
– full check of the block requires the specialized equipment;
– disconnect the electric socket from the control unit of system of injection of fuel;

Fig. 6.21. Check of the Digifant control unit


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