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Coding control unit > < Automatic test sequence

Fabia Mk1

Fault table
   
Fault table
  Note
t  All the possible faults which can be detected by the -V.A.G 1552- are listed below according to the 5-digit fault code.
t  Do not take any notice of the SAE code to the right of the fault code or the fault index (e.g. 136).
t  Before replacing components found to be defective first check the wiring and plug connections to these components as well as the earth cables according to the current flow diagram.
t  After repair always interrogate the fault memory using the vehicle system tester -V.A.G 1552- and erase the memory.
t  All static and sporadic faults are stored in the fault memory. A fault is detected as static if it exists for at least 2 seconds. If the fault is then no longer present, it is stored as a sporadic (temporary) fault. „/SP“ appears on the right of the display.
t  After switching on the ignition, all the faults which exist are set to sporadic and are not stored as static faults unless they continue to exist after completing the check.
t  If a sporadic fault no longer occurs during 50 driving cycles (ignition on for at least 5 minutes, road speed > 30 km/h), it is erased.
Readout on - V.A.G 1552-Possible cause of faultPossible effectsRectifying fault
00566 
t  The motor pump assembly is defect
t  Fault terminal 30
t  Power steering disconnects
–  Analyse measured value block 001 display field 1 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace the motor pump assembly
Power steering operationimplausible signal
  
00816 
t  Short circuit to earth in the line connection from the power steering sensor to the control unit
t  Sensor for power steering defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
t  The servotronic warning light -K92- is lit up
–  Analysing measured value block 002 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace sensor
Power steering sensor G250Short circuit to earth
  
00816 
t  Short circuit to pos. in the line connection from the power steering sensor to the control unit
t  Line interruption
t  Sensor for power steering defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
t  The servotronic warning light -K92- is lit up
–  Analysing measured value block 002 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace sensor
Power steering sensor G250Open circuit/short circuit to positive
  
00816 
t  Sensor for power steering defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
t  The servotronic warning light -K92- is lit up
–  Analysing measured value block 002 → Chapter
–  Replace sensor
Power steering sensor G250defective
  
00817 
t  Temperature in hydraulic system too high
t  Steering requires greater effort
t  Power steering disconnects
–  Allow temperature to drop
–  Analysing measured value block 001 → Chapter
Power steering temperature protection 
  
01288 
t  Alternator not regulating voltage
t  Battery discharged/excessively charged
t  Steering requires greater effort
t  Power steering disconnects
t  The servotronic warning light -K92- is lit up
–  Analysing measured value block 001 → Chapter
–  Check battery * → Electrical System; Rep. gr.27.
–  Test alternator → Electrical System; Rep. gr.27.
–  Check wiring and plug connections according to the current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
Terminal 30 power steeringSignal too high
Signal too low
 
01289 
t  Loose contact
t  Steering requires greater effort
t  Power steering disconnects
–  Analysing measured value block 004 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
Terminal 15 power steeringSignal too low
  
01290 
t  Short circuit to pos. in the line connection from the power steering sensor to the control unit
t  Sensor defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
–  Analysing measured value block 004 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace sensor
Power steering reference voltageShort circuit to positive
  
01290 
t  Short circuit to earth in the line connection from the power steering sensor to the control unit
t  Sensor defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
–  Analysing measured value block 004 → Chapter
–  Test wiring → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace sensor
Power steering reference voltageShort circuit to earth
  
01309 
t  Power steering control unit defective
t  Steering requires greater effort
t  Power steering disconnects
–  Replace the motor pump assembly
Power steering control unit -J500defective
  
01312 
t  Data bus cables defect
t  a connected control unit is faulty
t  Power steering disconnects
t  Steering requires greater effort
–  Checking the data BUS → Chapter
Data bus drivedefective
  
01314 
t  Data bus cables defect
t  Engine control unit defective
t  The power-assisted steering is operating in emergency mode or does not operate at all
t  Steering requires greater effort
–  Checking the data BUS → Chapter
–  Interrogate fault memory of engine control unit → Engine, Fuel Injection; Rep. gr.01.
Engine control unitno communication
  
01314 
t  Data bus cables defect
t  Engine control unit defective
t  The power-assisted steering is operating in emergency mode or does not operate at all
t  Steering requires greater effort
–  Checking the data BUS → Chapter
–  Interrogate fault memory of engine control unit → Engine, Fuel Injection; Rep. gr.01.
Engine control unitplease read out fault memory
  
01317 
t  Data bus cables defect
t  Dash panel insert defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
t  The servotronic warning light -K92- is lit up
–  Checking the data BUS → Chapter
–  Interrogate fault memory of dash panel insert → Electrical System; Rep. gr.90.
Control unit with display in dash panel insert -J285no communication
  
01317 
t  Data bus cables defect
t  Dash panel insert defective
t  The power-assisted steering is operating in emergency mode
t  Steering requires greater effort
–  Checking the data BUS → Chapter
–  Interrogate fault memory of dash panel insert → Electrical System; Rep. gr.90
Control unit with display in dash panel insert -J285please read out fault memory
  
01321 
t  Data bus cables defect
t  Airbag control unit defective
 
–  Checking the data BUS → Chapter
–  Interrogate the fault memory of the airbag control unit → Body Work; Rep. gr.01
Airbag control unit -J234no communication
  
01321 
t  Data bus cables defect
t  Airbag control unit defective
 
–  Checking the data BUS → Chapter
–  Interrogate the fault memory of the airbag control unit → Body Work; Rep. gr.01
Airbag control unit -J234please read out fault memory
  
01656 
t  Airbag control unit -J234- has triggered airbags
t  Final control diagnosis Airbag control unit -J234- performed
t  Power steering disconnects
–  Erasing fault memory → Chapter
Crash signal
 
01656 
t  Crash signal of airbag control unit - J234- N.O.K.
t  Data bus cables defect
t  Control units on the data bus are incorrectly coded
t  Power steering disconnects
–  Erasing fault memory → Chapter
–  Checking the data BUS → Chapter
–  Test crash signal → Body Work; Rep. gr.01
Crash signalimplausible signal
  

   

Coding control unit > < Automatic test sequence