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Self-diagnosis III > < Self-diagnosis II

Octavia Mk1

Fault table
   
Fault table
  Note
t  The fault table is ordered according to the fault code on the left.
t  The SAE code which is displayed on the right next to the fault code (e.g. P0107) can be ignored (at present only valid for USA).
t  Explanations on fault types (e.g. “interruption/short-circuit to earth”) → Operating instructions of vehicle system tester.
t  If parts are output as faulty: First of all test all leads and plug connections to these components, as well as the earth connections according to current flow diagram. Only if no fault is detected here should the part be replaced. This applies in particular for faults that are output as “sporadically occurred” (SP) faults.
t  If the vehicle system tester - V.A.G 1552- displays “Information in the documentation”; look up the relevant text in the fault table according to the fault code indicated.
Readout on - V.A.G 1552-Rectifying fault
00515
Hall sensor -G40		no signal or signal not within the tolerance
–  Test camshaft position sensor -G40- → Chapter
–  Inspect position of camshaft and rotor → 1.9/74 TDI Engine, Mechanics; Rep. Gr.15
00671
Cruise control system switch -E45		undefined switch status
–  Testing CCS → Chapter
00741
Brake pedal monitoring		Implausible signal
–  Test brake light switch -F- and brake pedal switch -F47- → Chapter
01117
Load signal for alternator terminal DF		Implausible signal
–  Test wiring and generator → Current flow diagrams and Fitting locations
01193
Low heat output relay -J359		Open circuit/Short-circuit to earth
–  Test low heat output relay - J359 - with final control diagnosis → Chapter
01194
High heat output relay -J360		Open circuit/Short-circuit to earth
–  Test high heat output relay -J360 - with final control diagnosis → Chapter
01282
Intake manifold flap change-over valve
-N239		Open circuit/Short-circuit to earth
–  Test the change-over valve for intake manifold flap -N239- with final control diagnosis → Chapter
16485
Air mass meter
-G70		Implausible signal
–  Testing the air mass meter -G70 - → Chapter
16684
Combustion misfiring
detected		 
–  Test compression → 1.9 /74 kW (TDI) Engine, Mechanical Components; Rep. Gr.15.
–  Unit injector → Chapter
16685
Cyl. 1 combustion misfirings detected
16686
Cyl. 2 combustion misfirings detected
16687
Cyl. 3 combustion misfirings detected
16688
Cyl. 4 combustion misfirings detected
16705
Engine speed sender
-G28		Implausible signal
–  Testing Engine speed sender -G28- → Chapter
16706
Engine speed sender
-G28		No signal
 
16725
Camshaft position sensor
-G40		Implausible signal
–  Test camshaft position sensor -G40- → Chapter
–  Test position of camshaft and sensor rotor → 1.9/74 kW (TDI) Engine, Mechanical Components; Rep. Gr.15.
16885
Vehicle speed signal		Implausible signal
–  Test vehicle speed signal → Chapter
16944
Voltage supply		Implausible signal
–  Test voltage supply of engine control unit -J248- → Chapter
 
16946
Voltage supply		Voltage too low
16947
Voltage supply		Voltage too high
16955
Brake light switch
-F		Implausible signal
–  Test brake light switch - F- and brake pedal switch -F47- → Chapter
16989
Control unit defective		 
–  Replacing engine control unit -J248- → Chapter
17068
Glow period control unit 1		Implausible signal
–  Test glow plug relay -J52- with final control diagnosis → Chapter
17552
Air mass meter
-G70		Open circuit/Short-circuit to earth
–  Testing the air mass meter -G70- → Chapter
 
17553
Air mass meter -G70		Short circuit to positive
 
17554
Air mass meter -G70		Voltage supply
17563
Intake manifold pressure
sender
-G71		Short circuit to positive
–  Test intake manifold pressure sender -G71- → Chapter
 
17564
Intake manifold pressure
sender
-G71		Open circuit/Short-circuit to earth
 
17565
Intake manifold pressure
sender
-G71		Voltage supply
17568
Intake manifold temperature sender
-G72		Short circuit to earth
–  Testing Intake manifold temperature sender - G72- → Chapter
 
17569
Intake manifold temperature sender
-G72		Open circuit/Short circuit to positive
 
17570
Fuel temperature sender
-G81		Short circuit to earth
–  Testing Fuel temperature sender - G81- → Chapter
17571
Fuel temperature sender
-G81		Open circuit/Short circuit to positive
17663
Coolant temperature
sender
-G62		Open circuit/Short circuit to positive
–  Check sender for coolant temperature -G62- → Chapter
17664
Coolant temperature
sender
-G62		Short circuit to earth
17668
Unit injector solenoid valve cyl. 1 -N240		Implausible signal
–  Unit injector → Chapter
17669
Unit injector solenoid valve cyl. 1 -N240		Regulating limit exceeded
17670
Unit injector solenoid valve cyl. 1 -N240		Regulating limit not reached
–  Unit injector → Chapter
–  Test fuel supply → 1.9 ltr./74 kW (TDI) Engine, Mechanical Components; Rep. Gr. 20
17671
Unit injector solenoid valve cyl. 2 -N241		Implausible signal
–  Unit injector → Chapter
17672
Unit injector solenoid valve cyl. 2 -N241		Regulating limit exceeded
17673
Unit injector solenoid valve cyl. 2 -N241		Regulating limit not reached
–  Unit injector → Chapter
–  Test fuel supply → 1.9 ltr./74 kW (TDI) Engine, Mechanical Components; Rep. Gr. 20
17674
Unit injector solenoid valve cyl. 3 -N242		Implausible signal
–  Unit injector → Chapter
17675
Unit injector solenoid valve cyl. 3 -N242		Regulating limit exceeded
17676
Unit injector solenoid valve cyl. 3 -N242		Regulating limit not reached
–  Unit injector → Chapter
–  Test fuel supply → 1.9 ltr./74 kW (TDI) Engine, Mechanical Components; Rep. Gr. 20
17677
Unit injector solenoid valve cyl. 4 -N243		Implausible signal
–  Unit injector → Chapter
17678
Unit injector solenoid valve cyl. 4 -N243		Regulating limit exceeded
17679
Unit injector solenoid valve cyl. 4 -N243		Regulating limit not reached
–  Unit injector → Chapter
–  Test fuel supply → 1.9 ltr./74 kW (TDI) Engine, Mechanical Components; Rep. Gr. 20
17795
Control unit defective		 
–  Replacing engine control unit -J248- → Chapter
17810
Exhaust gas recirculation valve -N18		Short circuit to positive
–  Testing Exhaust gas recirculation valve -N18- → Chapter.
–  Testing exhaust gas recirculation → Chapter
17849
Exhaust gas recirculation valve -N18		Open circuit/Short-circuit to earth
17910
Fuel pump relay
-J17		Short circuit to positive
–  Testing fuel pump relay -J17- → Current flow diagrams and Fitting locations
17911
Load signal of alternator tml. DF		Implausible signal
–  Test generator → Electrical System; Rep. Gr.27
–  Reading measured value block, display group 016 → Chapter
17931
Crash signal
from airbag CU		Implausible signal
–  Test airbag system → Body Work; Rep. Gr. 01
 
17932
Fuel pump relay
-J17		Open circuit/Short-circuit to earth
–  Testing fuel pump relay -J17- → Current flow diagrams and Fitting locations
17948
Vehicle speed signal		Signal too high
–  Test vehicle speed signal → Chapter
–  Testing CAN databus lines → Chapter
–  Test dash panel insert → Electrical System; Rep. Gr.90
17954
Charge pressure control solenoid valve
-N75		Short circuit to positive
–  Inspecting charge pressure control solenoid valve -N75- with final control diagnosis → Chapter
17957
Charge pressure control solenoid valve
-N75		Open circuit/Short-circuit to earth
17958
Charge pressure		Control difference
–  Inspecting charge pressure control solenoid valve - N75- with final control diagnosis → Chapter
–  Test charge pressure control → 1.9 l/74 kW (TDI) Engine, Mechanical Components; Rep. Gr.21
17964
Boost-pressure control
Regulating limit not reached
17965
Boost-pressure control
Regulating limit exceeded
17977
Cruise control system switch -E45		Implausible signal
–  Testing CCS → Chapter
–  Interrogate fault memory of electrical system control unit → Electrical System; Rep. Gr.90
17978
Engine control unit blocked		 
–  Adapt engine control unit -J248- to electronic immobiliser → Electrical System; Rep. Gr. 96
–  Test immobiliser → Electrical System; Rep. Gr. 96
18008
Voltage supply tml. 15		Voltage too low
–  Test voltage supply of engine control unit -J248- → Chapter
18009
Voltage supply relay terminal 30 -J317 → Note		Implausible signal
–  Testing Diesel direct injection system relay -J322- → Chapter
18017
Crash disconnect
activated		 
–  Read out fault memory of airbag control unit → Body Work; Rep. Gr.01
–  Replacing Airbag control unit → Body Work; Rep. Gr. 69
18020
Engine control unit		Incorrectly coded
–  Code the engine control unit -J248- → Chapter
18024
Glow period warning lamp
-K29		Short circuit to positive
–  Test glow period warning lamp -K29- with final control diagnosis → Chapter
18025
Glow period warning lamp
-K29		Open circuit/Short-circuit to earth
18026
Glow plug relay -J52		Short circuit to positive
–  Test glow plug relay -J52- with final control diagnosis → Chapter
18027
Glow plug relay -J52		Short circuit to earth
18034
Data bus drive
Missing message from gearbox CU
–  Testing CAN databus lines → Chapter
18039
Accelerator pedal position
sender
-G79		Signal too high
–  Testing accelerator pedal position sender -G79- → Chapter
18040
Accelerator pedal position
sender
-G79		Voltage supply
18043
Data bus drive
missing message from AC CU
–  Testing CAN databus lines → Chapter
–  Read out air conditioning system control unit fault memory → Heating, Air conditioning; Rep. Gr. 87
18044
Data bus drive
Missing message from airbag CU
–  Testing CAN databus lines → Chapter
–  Read out fault memory of airbag CU → Body Work; Rep. Gr.01
18045
Data bus drive
missing message form electron. CU
–  Testing CAN databus lines → Chapter
–  Interrogate fault memory of electrical system control unit → Electrical System; Rep. Gr.90
18047
1/2 for accelerator pedal position sender
-G79+G185		Implausible signal
–  Testing accelerator pedal position sender -G79- → Chapter
18048
Control unit defective		 
–  Replacing engine control unit -J248- → Chapter
18056
Data bus drive
defective
–  Testing CAN databus lines → Chapter
–  Read fault memory of engine control unit → Chapter
18057
Data bus drive
Missing message from ABS CU
–  Testing CAN databus lines → Chapter
–  Read out fault memory of ABS control unit → Chassis; Rep. Gr.45
18058
Data bus drive
Missing message from combiinstrument
–  Testing CAN databus lines → Chapter
–  Read out fault memory of dash panel insert → Electrical System; Rep. Gr. 90
18062
Read out fault memory of combiinstrument		 
–  Perform self-diagnosis of the dash panel insert → Electrical System; Rep. Gr.90
18065
Air conditioning system inlet/outlet		Short circuit to positive
–  Test AC compressor control with final control diagnosis → Chapter
18067
Radiator fan control 1		Short circuit to positive
–  Test AC radiator fan control with final control diagnosis → Chapter
18071
Actuation of unit injector solenoid valve
Short circuit to positive
–  Unit injector → Chapter
18072
Actuation of unit injector solenoid valve
Electrical fault in the circuit
18073
Actuation of unit injector solenoid valve
Mechanical fault
–  Replace injector unit → Chapter
18074
Unit injector solenoid valve cyl. 1 -N240		Electrical fault in the circuit
–  Testing unit injector valve → Chapter.
18075
Unit injector solenoid valve cyl. 2 -N241
18076
Unit injector solenoid valve cyl. 3 -N242
18077
Unit injector solenoid valve cyl. 4 -N243
18080
Actuation of radiator fan -V7		Open circuit/Short-circuit to earth
–  Test AC radiator fan control with final control diagnosis → Chapter
18090
Data bus drive
implausible message from ABS CU
–  Testing CAN databus lines → Chapter
–  Read out fault memory of ABS control unit → Chassis; Rep. Gr.45
18097
Data bus drive
Implausible signal from electron. CU
–  Testing CAN databus lines → Chapter
–  Interrogate fault memory of electrical system control unit → Electrical System; Rep. Gr.90
19456
Glow period warning lamp
-K29		Missing message from combiinstrument
–  Testing CAN databus lines → Chapter
19458
Kick-down switch
-F8		Implausible signal
–  Testing accelerator pedal position sender -G79- → Chapter
19459
Low heat output relay -J359		Short circuit to positive
–  Test low heat output relay -J359- with final control diagnosis → Chapter
19461
High heat output relay -J360		Short circuit to positive
–  Test high heat output relay -J360- with final control diagnosis → Chapter
19463
Camshaft position sensor
-G40		No signal
–  Inspecting the camshaft position sensor -G40- → Chapter
–  Test position of camshaft and sensor rotor → 1.9/74 kW (TDI) Engine, Mechanical Components; Rep. Gr.15.
19464
Camshaft position sensor
-G40		Sensor signal outside tolerance field
19556
Intake manifold flap motor -V157		Short circuit to positive
–  Testing Intake manifold flap motor -V157- → Chapter
19557
Intake manifold flap motor -V157		Open circuit/Short-circuit to earth
19558
Intake manifold flap motor -V157		No signal
19559
Intake manifold flap motor -V157		defective
19560
Intake manifold flap
change-over valve
-N239		Short circuit to positive
–  Test the change-over valve for intake manifold flap -N239- with final control diagnosis → Chapter
19561
Intake manifold flap
change-over valve
-N239		Open circuit/Short-circuit to earth
19586
Exhaust gas recirculation system
Regulating limit not reached
–  Testing Exhaust gas recirculation valve -N18- → Chapter.
–  Testing exhaust gas recirculation → Chapter
19587
Exhaust gas recirculation system
Regulating limit exceeded

1)  When attempting to start with a non-adapted key a static fault is stored in the memory. If a subsequent start attempt occurs with an adpated key the fault is changed to a sporadic fault.
2)  Relay for voltage supply terminal 30 -J317- is identical with relay for diesel direct injection system -J322-.
   

Self-diagnosis III > < Self-diagnosis II