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Final control diagnosis > < Interrogating fault memory

A3 Mk1

Fault table for telematics system
Fault table for telematics system
  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.
   
Output on printer of
-V.A.G 1551-		Possible cause of troubleFault remedy
00003
Control unit
t  Defective

t  Telematics control unit defective

–  Replace telematics control unit → Radio, telephone and navigation system; Rep. Gr.91
00469 
Display data bus in one-wire mode
t  Electrical fault in circuit

t  CAN bus fault
t  Open circuit in wiring
t  Wiring damage

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
00851
Loudspeaker → Note
t  Mutual short circuit in wires to hands-free loudspeaker

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
–  Replace hands-free loudspeaker → Radio, telephone and navigation system; Rep. Gr.91

1)  This fault is stored if a fault occurs during final control diagnosis (loudspeaker).
   
Output on printer of
-V.A.G 1551-		Possible cause of troubleFault remedy
00862
Navigation aerial
(GPS) - R50/R52
t  Open circuit
t  Short circuit
t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Navigation aerial (GPS) defective
–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Replace GPS aerial wire
–  Replace navigation aerial (GPS) → Radio, telephone and navigation system; Rep. Gr.91
01300
Nav. with CD drive control unit -J401-
t  No communication

t  CAN bus fault
t  Open circuit in wiring
t  Wiring damage
t  Navigation system with CD drive control unit -J401- 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 → Chapter
–  Replace navigation system control unit → Radio, telephone and navigation system; Rep. Gr.91
01304
Radio -R-
t  No communication

t  CAN bus fault
t  Open circuit in wiring
t  Open circuit in radio power supply
t  Radio defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
–  Use current flow diagram to examine radio power supply
–  Read out radio fault memory → Chapter
–  Replace radio → Radio, telephone and navigation system; Rep. Gr.91
01305
Data bus display
t  Defective

t  CAN bus fault
t  Open circuit in wiring

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
01317
Control unit with display in dash panel insert -J285-
t  No communication

t  CAN bus fault
t  Open circuit in wiring
t  Dash panel insert 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 dash panel insert → Electrical system, Self-diagnosis; Rep. Gr.01
–  Replace dash panel insert → Electrical system; Rep. Gr.90
01326
Multi-func. steering wheel ctrl. unit -J453-
t  No communication

t  CAN bus fault
t  Open circuit in wiring
t  Multi-function steering wheel control unit 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 multi-function steering wheel control unit → Chapter
–  Replace multi-function steering wheel control unit → Radio, telephone and navigation system; Rep. Gr.91
01522
Telephone handset -R37-
t  No communication

t  Open circuit in wiring
t  Telephone handset defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
–  Replace telephone handset → Radio, telephone and navigation system; Rep. Gr.91
01523
Telephone microphone -R38-
t  Open circuit/short to positive
t  Short to earth

t  Open circuit in wiring
t  Short circuit
t  Telephone microphone defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring
–  Replace telephone microphone → Radio, telephone and navigation system; Rep. Gr.91
01524
Telephone aerial
t  No signal

t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Telephone aerial defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace telephone aerial wire
–  Replace telephone aerial → Radio, telephone and navigation system; Rep. Gr.91
01526
Emergency call button -E276-
t  Open circuit/short to positive
t  Short to earth

t  Open circuit in wiring
t  Short circuit
t  Emergency call button defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
–  Eliminate open circuit in wiring/short circuit
–  Replace emergency call button → Radio, telephone and navigation system; Rep. Gr.91
01527
Breakdown help button -E275-
t  Open circuit/short to positive
t  Short to earth

t  Open circuit in wiring
t  Short circuit
t  Emergency call button defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring/short circuit
–  Replace breakdown help button → Radio, telephone and navigation system; Rep. Gr.91
01528
Additional aerial for telematics -R90
t  No signal

t  Open circuit in aerial wire
t  Short circuit in aerial wire
t  Additional aerial for telematics (emergency aerial) defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Replace wire of additional aerial for telematics
–  Replace additional aerial for telematics → Radio, telephone and navigation system; Rep. Gr.91
01529
Additional loudspeaker for telematics -R91-
t  Open circuit/short to positive
t  Short to earth

t  Open circuit in wiring
t  Short circuit
t  Additional loudspeaker for telematics (emergency loudspeaker) defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring/short circuit
–  Replace additional loudspeaker → Radio, telephone and navigation system; Rep. Gr.91
01531
Emergency battery
t  No signal

t  Open circuit in wiring
t  Short circuit
t  Emergency battery defective/flat

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring/short circuit
–  Replace emergency battery → Radio, telephone and navigation system; Rep. Gr.91
01656
Crash signal
t  No signal

t  Open circuit in wiring
t  Short circuit
t  Airbag control unit defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring/short circuit
–  Check airbag control unit → Body, Self-diagnosis; Repair group 01
01796
Telematics SIM card
t  No signal

t  Open circuit in wiring
t  Short circuit
t  Telematics SIM card defective

–  Fault-finding in line with current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations
–  Eliminate open circuit in wiring/short circuit
–  Replace telematics SIM card → Radio, telephone and navigation system; Rep. Gr.91

   

Final control diagnosis > < Interrogating fault memory