Audi 100

1982-1990 of release

Repair and operation of the car



Audi 100
+ 1.1. Governing bodies and devices
+ 2. Technical characteristics
+ 3. Engines
+ 4. Cooling system
+ 5. Exhaust system
+ 6. Power supply system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
- 12. Electric equipment
   + 12.1. System of electric equipment
   - 12.2. System of ignition
      + 12.2.1. Transistor system of ignition
      - 12.2.2. Electronic system of ignition
         12.2.2.1. Check of the coil of ignition
         12.2.2.2. Check of the sensor of a corner of an advancing of ignition
         12.2.2.3. Check of the sensor of frequency of rotation of a cranked shaft
         12.2.2.4. Sensor of a corner of an advancing of ignition, frequency of rotation of a cranked shaft
         12.2.2.5. Check and replacement of the sensor of air temperature
         12.2.2.6. Check of the sensor of temperature of cooling liquid
         12.2.2.7. Switches of the mode of idling and opening of a butterfly valve
         12.2.2.8. Check of the sensor of the Hall
         12.2.2.9. Check of the control unit
      12.2.3. Contactless system of ignition of FEI
   + 12.3. Electric circuits


12.2.2.3. Check of the sensor of frequency of rotation of a cranked shaft
GENERAL INFORMATION

Numbers of contacts of a connecting block of the control unit


PERFORMANCE ORDER
1. To disconnect blocks of gray color.
2. To measure by an ohmmeter resistance between contacts "1" and "2", it has to be about 1 kOhm. If resistance differs from specified, it is necessary to replace the sensor.
3. After that to measure resistance between contacts "1" and "3", then between contacts "2" and "3". In both cases the ohmmeter has to show zero. If is though any resistance, to replace the frequency sensor.
4. To check conducting between a block of the sensor of frequency and a block of the control unit of ignition. For this purpose to disconnect a connecting block from the block.
5. To measure by an ohmmeter resistance between contacts "1" and "29", then between "2" and "11" and, at last, between "3" and "28" (see rice. Numbers of contacts of a connecting block of the control unit.
6. Resistance has to be equal in all cases to zero. If the ohmmeter shows any resistance, means in conducting there is a break.