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Fault table
Fault table
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00258
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD2)
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Solenoid valve 1 -N88-
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Solenoid valve 1 -N88- defective
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- Read measured value block ; display group number 004
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Short to positive1)
Open circuit/short to earth1)
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00260
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 2 -N89-
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Solenoid valve 2 -N89- defective
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- Read measured value block ; display group number 004
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Short to positive1)
Open circuit/short to earth1)
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1) One of these displays appears in addition to relevant component.
2) First check connections for contact corrosion or water ingress and renew if necessary. If solenoid faults are displayed then especially check the 10 pin connector on gearbox between valve body conductor strip and wiring loom.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00262
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 3 -N90-
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Solenoid valve 3 -N90- defective
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- Read measured value block ; display group number 004
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Short to positive1)
Open circuit/short to earth1)
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00264
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 4 -N91-
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Solenoid valve 4 -N91- defective
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- Read measured value block ; display group number 007
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Open circuit/short to earth
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1) One of these displays appears in addition to relevant component.
2) First check connections for contact corrosion or water ingress and renew if necessary. If solenoid faults are displayed then especially check the 10 pin connector on gearbox between valve body conductor strip and wiring loom.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00266
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 5 -N92-
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Solenoid valve 5 -N92- defective
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- Read measured value block ; display group number 004
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Short to positive1)
Open circuit/short to earth1)
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00268
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 6 -N93-
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Solenoid valve 6 -N93- defective
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- Read measured value block ; display group number 002
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Open circuit/short to earth
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1) One of these displays appears in addition to relevant component.
2) First check connections for contact corrosion or water ingress and renew if necessary. If solenoid faults are displayed then especially check the 10 pin connector on gearbox between valve body conductor strip and wiring loom.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00270
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Wiring open circuit or short to earth
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- Check wiring and connections according to CFD 2)
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Solenoid valve 7 -N94-
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Solenoid valve 7 -N94- defective
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- Read measured value block ; display group number 004
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Short to positive1)
Open circuit/short to earth1)
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1) One of these displays appears in addition to relevant component.
2) First check connections for contact corrosion or water ingress and renew if necessary. If solenoid faults are displayed then especially check the 10 pin connector on gearbox between valve body conductor strip and wiring loom.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00281
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Wiring open circuit
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- Check wiring and connections according to current flow diagram1)
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Road speed sender -G68-
No signal
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Road speed sender -G68- defective
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- Read measured value block ; Display group number 002
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00293
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Wiring open circuit
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- Check wiring and connections using current flow diagram 1)
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Multifunction switch -F125-
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Multifunction switch -F125- defective
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- Read measured value block ; display group number 001
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Undefined switch state
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- Renew multifunction switch -F125-
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1) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00297
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Wiring open circuit
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- Check wiring and connections according to current flow diagram 2)
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Gearbox speed sender
-G38-
No signal
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Gearbox speed sender -G38- defective
Connectors for gearbox speed sensor -G38- and road speed sender -G68- are interchanged
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- Perform electrical check =>from page 01-89
Renew gearbox speed sender -G38-
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00300
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Wiring open circuit
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- Check wiring and connections according to current flow diagram2)
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Gearbox oil temperature sender -G93-1)
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Gearbox oil temperature sender -G93- defective
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- Read measured value block ; display group number 005
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No fault type recognised
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1) A faulty ATF temperature sender is indicated.
2) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00518
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Wiring open or short circuit
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- If in addition fault 00638 is displayed, then rectify this first
Check wiring and connections according to CFD 1)
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Throttle valve potentiometer -G69-
Signal outside tolerance
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Defective engine control unit or defective throttle valve potentiometer -G69- (in throttle valve control part)
The signal from throttle valve potentiometer -G69- is transmitted via engine control unit to gearbox control unit
and can only be checked in measured value block.
If a fault is indicated in the throttle valve potentiometer, then always perform self-diagnosis of engine control unit as well.
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- Read measured value block
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1) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00529
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Wiring open circuit
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- Check wiring and connections according to CFD 1)
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Speed information missing
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- Read measured value block =>page
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- Perform electrical check =>from Page 01-89
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00532
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Battery defective
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- Test battery voltage
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Supply voltage
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Insufficient system voltage for valves
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- Read measured value block ; Display group number 002
Test supply voltage to control unit -J217-
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1) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00545
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Wiring open circuit or short circuit
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- Check wiring and connections using current flow diagram 1)
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Engine/gearbox electrical connection
Open circuit/
Short to earth
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No connection between engine and gearbox control units
Signal for influencing ignition timing is not being transmitted between engine and gearbox control units, or is being transmitted erroneously
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- Read measured value block
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00638
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Wiring open circuit or short to earth
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- Check wiring and connections using to current flow diagram 1)
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Engine/gearbox electrical connection 2
No signal
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No connection between engine and gearbox control units
Throttle valve signal not being transmitted to gearbox control unit
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- Read measured value block
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1) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00641
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Gearbox becomes too hot, max. 148°C. If ATF temperature is too high, gearbox shifts down into next lower gear.
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- Check ATF level
=> Repair group 37; Checking and topping up ATF level01-58; display group number 005; Reading off ATF temperature
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ATF temperature
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Trailer load of vehicle too high
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Signal too large
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ATF level not in order
Gearbox oil temperature sender (ATF) defective
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- Replace conductor strip
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00652
Gear monitoring
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Electrical/hydraulic fault
Clutch or valve chest defective
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- Read measured value block ; display group number 004 and establish by driving in which gear the fault occurs
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Implausible signal
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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00660
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Wiring open circuit
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- Check wiring and connections according to CFD 2)
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Kickdown switch/throttle valve potentiometer 1)
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Kickdown switch -F8- defective
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- Read measured value block =>Page
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Implausible signal
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Throttle valve potentiometer -G69- defective
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- Perform repairs as described in "Rectifying fault" 00518 -Throttle valve potentiometer -G69-
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00777
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Wiring open circuit
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- Check engine control unit
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Accelerator pedal position sender -G79-
No signal
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Engine control unit notes that signal is faulty and then sends it into data bus
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- Read measured value block ; Display group number 002
Check wiring and connectors using current flow diagram
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1) Fault 00660 can only be recognised by control unit when vehicle is driven.
2) First check connectors for contact corrosion or water ingress and renew if necessary.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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01166
Engine torque signal
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Fault of engine or its components, e.g. EPC
Engine control unit incorrectly coded
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- If additionally the faults:
01312 or 01314
are displayed, these must be rectified first
Check wiring and connections using current flow diagram, incl. data bus wiring
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Implausible signal
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Engine control unit incorrectly coded
Fault in engine or its components, e.g. EPC
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- Check engine control unit
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01192
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Torque converter lock-up clutch
mechanical fault
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Torque converter lock-up clutch slipping
Valve body defective
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- Check torque converter lock-up clutch slip
Read measured value block ; display group number 007
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01236
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Selector lever lock solenoid -N110-
Open circuit/short to earth
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Wiring open circuit or short to earth
Selector lever lock solenoid -N110- defective
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- Read measured value block ; display group number 005
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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01312
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Drive train data bus
Defective1)
No communication1)
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Data bus wiring/connections defective
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- Check data bus wiring and connections using current flow diagram
Perform electrical check =>from Page 01-89
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01314
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Engine control unit
No communication 1)
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Data bus wiring/connections defective
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- Check data bus wiring and connections using current flow diagram
Perform electrical check =>from Page 01-89
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Incorrect equipment 1)
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Engine control unit incorrectly coded
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Check engine control unit repair group 01 of respective engine code
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01316
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Brake control unit
No communication
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Data bus wiring/connections defective
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- Check data bus wiring and connections according to current flow diagram
Perform electrical check =>from Page 01-89
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1) One of these displays appears in addition to relevant component.
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Output on printer
V.A.G 1551
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Possible cause of fault
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Rectifying fault
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65535
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- Renew control unit
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Control unit defective
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Control unit -J217- defective
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- Initiate basic setting
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The control unit -J217- should not be renewed until the possible cause of the fault has been determined and the following faults have been rectified:
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◆ mechanical faults
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◆ hydraulic faults
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◆ all affected electrical/electronic components and cable connections.
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