audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
Erasing fault memory > < Interrogating fault memory

A2

Fault table
Fault table
  Note
t  The following table lists all faults which can be detected by the system and printed out on fault reader -V.A.G 1551- in ascending order of 5-digit fault codes.
t  Before replacing components found to be defective, use current flow diagram to check wiring and connectors to these components as well as earth connections.
t  On completion of repair work and after checking system operation, fault memory is always to be interrogated again and erased.
t  All static and sporadic faults are stored in the fault memory. Faults persisting for at least 2 seconds are identified as being static faults. If a fault is then no longer present, it is stored as being sporadic and “/SP” appears on the right of the display.
t  After switching on ignition, all faults present are set to sporadic and only stored as being static if they are still present after checking.
t  Sporadic faults which do not re-occur during 40 on/off cycles are erased.
t  On eliminating open circuit in wiring in the event of a data bus fault, make sure the two data bus wires of the relevant CAN bus system form a twisted pair so as to avoid interference.
   
Output on printer of -V.A.G 1551-Possible cause of troubleFault remedy
00482
Rear display unit
t  Open circuit/short to positive
t  Short to earth
t  Rear monitor defective
–  Replace rear monitor → Note
00861
Connection to computer for navigation
t  No communication
t  Open circuit/short to positive
t  Short to earth
t  CAN bus fault
t  Wiring damage
t  Open circuit in wiring
t  Navigation system control unit -J402- defective
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
–  Read out fault memory in navigation system control unit -J402- → Chapter
–  Replace navigation system control unit -J402- → Radio, telephone and navigation system; Rep. Gr.91
00863
TV aerial 1 -R55-
t  Open circuit/short to positive
t  Short to earth
t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Amplifier for TV aerial 1 defective
–  Replace aerial wire
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace TV aerial amplifier → Radio, telephone and navigation system; Rep. Gr.91
00864
TV aerial 2 -R56-
t  Open circuit/short to positive
t  Short to earth
t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Amplifier for TV aerial 2 defective
–  Replace aerial wire
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace TV aerial amplifier → Radio, telephone and navigation system; Rep. Gr.91
00865
TV aerial 3 -R57-
t  Open circuit/short to positive
t  Short to earth
t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Amplifier for TV aerial 3 defective
–  Replace aerial wire
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace TV aerial amplifier → Radio, telephone and navigation system; Rep. Gr.91
00866
TV aerial 4 -R58-
t  Open circuit/short to positive
t  Short to earth
t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Amplifier for TV aerial 4 defective
–  Replace aerial wire
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace TV aerial amplifier → Radio, telephone and navigation system; Rep. Gr.91

1)  Rear monitor is not fitted at present.
   

Erasing fault memory > < Interrogating fault memory