Audi Workshop Service and Repair Manuals

Fault tables   Note t  Listed below are all possible faults that are recognised by the electronic manual gearbox control unit -J514- and displayed on the -VAS 5051 A- when the fault memory content is interrogated. t  The content of the fault memory is retained until the next erase operation, erase fault memory → Chapter. t  The fault table is sorted according to the 5-digit fault code on the left. t  Sporadic faults are marked “sporadic” on the display. “Sporadic” faults are faults which only occur occasionally. t  Do not immediately replace the components indicated to you by -VAS 5051 A- as faulty, instead : first check the wiring and connectors to these components according to current flow diagram. Also check the earth connections according to current flow diagram. This is particularly relevant for faults recorded as “sporadic”.

Fault 00263

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00263 Gearbox implausible signal
l  If this fault has been stored, a type of emergency program is triggered. The clutch is disengaged and the vehicle is no longer driven. In most cases it is possible to continue driving after switching off the ignition and restarting the engine. However, the vehicle should be taken to a workshop as quickly as possible to remedy the causes of the fault	t  At the same time, certain other faults were stored in the fault memory	–  Process and eliminate all other fault entries for the gearbox control unit –  Fault 00263 can only be deleted if all other faults in the fault memory have been eliminated
00263 Gearbox Fault in basic setting
	t  A fault occurred during the “basic setting” function	–  Process and eliminate all other fault entries for the gearbox control unit before performing the basic setting again
	t  “Basic setting” function was not carried out or was carried out incorrectly	–  Perform basic setting → Chapter
	t  Connectors for potentiometer 1 for gear recognition -G239- and potentiometer 2 for gear recognition -G240- were mixed up after a repair	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Only swap the connectors when you have checked this first in the “Read measured value block ” function. Fitting location for potentiometer → Fig.
	t  Potentiometer for gear recognition potentiometer 1 for gear recognition -G239- and potentiometer 2 for gear recognition -G240- or wiring or connectors defective	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Check wiring according to current flow diagram

Fault 00297

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00297 Gearbox speed sender -G38- no signal
l  This fault is stored if one of the points below is detected: Clutch is engaged, no shifting and speed is greater than 30 km/h. The vehicle speed signal from speedometer sender (Hall sender, on gearbox) -G22-, which is sent to the dash panel insert, is compared with the gearbox speed from gearbox speed sender -G38- (gearbox transmission ratio). In addition, the calculated gearbox speed is compared with the gearbox speed from -G38-. The fault is stored if there is a difference of more than 120 rpm	t  Gearbox speed sender -G38- defective t  Wiring to component defective t  Clutch worn or defective t  Clutch travel sender -G162- → Note defective	–  Perform final control diagnosis in the “Guided fault finding” → Chapter –  Read measured value block 001 → Anchor and 002 → Anchor –  Perform electrical test → Chapter
	t  Metal shavings at the gearbox speed sender -G38-	–  Remove gearbox speed sender -G38- → Item and check, clean if necessary –  Drain gearbox oil if necessary and check for increased concentration of metal shavings. If there are a lot of metal shavings, the gearbox is defective and must be replaced
l  This fault is stored if the voltage value of the signal from the clutch travel sender -G162- is outside the tolerance. In this case, it is not possible to delete fault 00297 either

1)	The clutch travel sender -G162- is integrated into the slave cylinder.

Fault 00625

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00625 Vehicle speed signal implausible signal
l  The vehicle speed signal from the speedometer sender (Hall sender, on gearbox) -G22-, which is sent to the dash panel insert, is compared with the signals of the ABS sensors. If one of the two signals is missing or if a difference of greater than 16 km/h is determined, the fault is stored l  If the vehicle speed signal from the speedometer sender (Hall sender, on gearbox) -G22- is missing, the signals from the ABS sensors are used as substitute signals to enable the driver to continue driving.	t  The signal from the ABS/ESP control unit or from the engine control unit is missing	–  Interrogate ABS/ESP control unit fault memory –  Interrogate engine control unit fault memory
	t  Open or short circuit to earth or positive between electronic manual gearbox control unit -J514- (pin 21) and control unit with display unit in dash panel insert -J285- (speed signal) t  Wiring to the speedometer sender (Hall sender, on gearbox) -G22- defective t  Speedometer sender (Hall sender, on gearbox) -G22- defective	–  Check wiring according to current flow diagram –  Read measured value block 007 → Anchor
	t  Control unit with display unit in dash panel insert -J285- defective	–  Interrogate dash-panel insert fault memory

Fault 00668

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00668 Vehicle electrical system voltage for terminal 30 open circuit
l  The fault is stored if no starting procedure occurs and the fault exists for longer than 0.5 seconds l  The voltage value of terminal 30 has dropped below the voltage value of terminal 15 by 2 V for 0.5 seconds (terminal 30 < terminal 15)	t  Open circuit in wiring	–  Test wiring and connections according to current flow diagram –  Read measured value block 020 → Anchor –  Perform electrical test → Chapter

Fault 00789

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00789 Reversing switch -F41- → Note implausible signal
l  The fault is not stored until 10 faulty (implausible) shifts to “R” have occurred l  At very low temperatures, the gearbox oil is viscous and the reversing switch -F41- may deliver implausible signals	t  Reversing light switch -F4- defective t  Wiring to component defective	–  Check wiring and switches according to current flow diagram
	t  Potentiometer 1 for gear recognition -G239- or potentiometer 2 for gear recognition -G240- defective, fitting location of potentiometers → Fig.	–  Read measured value block, display group 004 → Anchor, 015 → Anchor and 016 → Anchor

2)	The reversing switch -F41- is identical to the reversing light switch -F4-.

Fault 00811

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00811 System is not ready for interrogation
	t  After erasing the fault memory, the fault memory was interrogated again immediately (too quickly)	–  Erase fault memory again → Chapter. Now wait at least 30 seconds before interrogating the fault memory again

Fault 00836

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00836 Gear selector valve 1 -N284-
l  The fault is stored when the measured current is consistently too low for 80 ms and the battery voltage is greater than 8.5 V	t  Voltage at valve too low or too high	–  Read measured value block 017 → Anchor
	t  Wiring to valve defective t  Valve defective	–  Perform electrical test → Chapter

Fault 00837

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00837 Gear selector valve 2 -N285-
l  The fault is stored when the measured current is consistently too low for 80 ms and the battery voltage is greater than 8.5 V	t  Voltage at valve too low or too high	–  Read measured value block 017 → Anchor
	t  Wiring to valve defective t  Valve defective	–  Perform electrical test → Chapter

Fault 00838

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00838 Gear selector valve 3 -N286-
l  The fault is stored when the measured current is consistently too low for 80 ms and the battery voltage is greater than 8.5 V	t  Voltage at valve too low or too high	–  Read measured value block 004 → Anchor
	t  Wiring to valve defective t  Valve defective	–  Perform electrical test → Chapter

Fault 00839

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00839 Gear selector valve 4 -N287-
l  The fault is stored when the measured current is consistently too low for 80 ms and the battery voltage is greater than 8.5 V	t  Voltage at valve too low or too high	–  Read measured value block 004 → Anchor
	t  Wiring to valve defective t  Valve defective	–  Perform electrical test → Chapter

Fault 00840

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00840 Gearbox hydraulic pump relay -J510-
l  If fault 00840 is only stored as a “sporadic” fault, it is necessary to perform the final control diagnosis in the “Guided fault-finding” → Chapter	t  Wiring to component defective	–  Read measured value block 004 → Anchor –  Check wiring according to current flow diagram
	t  Relay defective	–  Replace relay

Fault 00841

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00841 Sender for gearbox hydraulic pressure -G270-
l  The fault is stored when the voltage at the sender is detected to be less than 0.2 V or greater than 4.7 V for longer than 2 seconds l  If fault 00841 is only stored as a “sporadic” fault, it is necessary to perform the final control diagnosis in the “Guided fault-finding” → Chapter	t  Wiring to component defective	–  Read measured value block 020 → Anchor –  Check wiring according to current flow diagram
	t  Sender defective	–  Replace sender → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 00843

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00843 Potentiometer for selector lever, forwards/backwards -G272-
l  The fault is stored when the voltage at the potentiometer is detected to be outside the tolerance for longer than 0.3 seconds	t  Wiring to component defective	–  Read measured value block 022 → Anchor –  Check wiring according to current flow diagram
	t  Potentiometer defective	–  Replace potentiometer → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 00844

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00844 Switch for selector lever gate recognition -F257-
	t  Wiring to component defective	–  Read measured value block 022 → Anchor –  Perform electrical test → Chapter –  Check wiring according to current flow diagram
	l  Switch defective	–  Replace switch → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 0845

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00845 Switch for selector lever N-recognition -F258-
	t  Wiring to component defective	–  Read measured value block 022 → Anchor –  Perform electrical test → Chapter –  Check wiring according to current flow diagram
	l  Switch defective	–  Replace switch → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 00846

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00846 Switch for selector lever Stop-recognition -F259-
	t  Wiring to component defective	–  Read measured value block 022 → Anchor –  Perform electrical test → Chapter –  Check wiring according to current flow diagram
	l  Switch defective	–  Replace switch → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 00847

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
00847 Load shutoff relay -J511-
l  The load shutoff relay is only active in ECO mode (green warning lamp in dash panel insert lights up). The relay shuts off the rear window heater and seat heaters in STOP mode if the engine is switched off, e.g. when stopped at traffic lights. This is a safety precaution to ensure that there is sufficient battery voltage to automatically start the engine l  This load shutoff is not activated when the engine is started normally using the ignition key	t  Wiring to component defective	–  Check wiring according to current flow diagram
	t  Relay defective	–  Replace relay

Fault 01070

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01070 Relay for starter -J53-
	t  Wiring to component defective	–  Read measured value block 004 → Anchor –  Check wiring according to current flow diagram
	t  Relay defective	–  Replace relay

Fault 01071

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01071 Clutch travel sender -G162- signal outside tolerance
	t  Wiring to component defective	–  Perform final control diagnosis in the “Guided fault finding” → Chapter –  Read measured value block 002 → Anchor –  Perform basic setting → Chapter –  Perform electrical test → Chapter –  Check wiring according to current flow diagram
	t  Sender defective	–  Replace clutch slave cylinder → 5-speed Manual Gearbox 085 DS; Rep. Gr.30

Fault 01073

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01073 Clutch pressure system
l  The fault is stored when the hydraulic control unit has run for longer than 4 minutes and 20 seconds and the shutoff pressure of approx. 50 bar has not been reached. The condition is that it was not the first engine start	t  Oil level in the system not correct	–  Check oil level in reservoir for clutch mechanism and gear selector mechanism → 5-speed Manual Gearbox 085 DS; Rep. Gr.34
	t  Hose/pipe assembly leaking	–  Renew defective O ring and wiring
	t  Sender for gearbox hydraulic pressure -G270- defective	–  Read measured value block 020 → Anchor
	t  Hydraulic control unit defective	–  Perform the final control diagnosis of the hydraulic control unit → Chapter –  Replace or repair hydraulic control unit → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 01126

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01126 Engine speed signal implausible signal
l  The fault is stored when it is present for longer than 1.5 seconds	t  Open or short circuit to earth or positive between electronic manual gearbox control unit -J514- (pin 19) and engine control unit	–  Interrogate engine control unit fault memory –  Check wiring according to current flow diagram
	t  Engine speed sender -G28- defective	–  Read measured value block 001 → Anchor

Fault 01155

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01155 Clutch speed difference too great
l  The fault is stored when the difference between the engine speed and the gearbox speed is greater than 240 rpm for at least 2.9 seconds. Condition: The clutch must be engaged	t  Clutch slips	–  Read measured value block 003 → Anchor –  Repair clutch → 5-speed Manual Gearbox 085 DS; Rep. Gr.30
01155 Clutch control deviation
l  The fault is stored when the difference between the engine speed and the gearbox speed is greater than 240 rpm for at least 2.9 seconds. Condition: The clutch must be engaged	t  Clutch defective	–  Read measured value block 003 → Anchor –  Repair clutch → 5-speed Manual Gearbox 085 DS; Rep. Gr.30

Fault 01312

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01312 Data bus drive defective
	t  Fault in ABS/ESP control unit	–  Interrogate ABS/ESP control unit fault memory
	t  Fault in engine control unit	–  Interrogate engine control unit fault memory
	t  Fault in dash panel insert	–  Interrogate dash-panel insert fault memory
	t  CAN bus wiring defective t  Electronic manual gearbox control unit -J514- defective	–  Perform electrical test → Chapter –  Check wiring according to current flow diagram –  Check CAN bus → Chapter

Fault 01314

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01314 Engine control unit no communication
	t  Fault in engine control unit t  CAN bus wiring defective	–  Interrogate engine control unit fault memory –  Check wiring according to current flow diagram –  Perform electrical test → Chapter –  Check CAN bus → Chapter

Fault 01316

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01316 Brake control unit no communication
	t  Fault in ABS/ESP control unit t  CAN bus wiring defective	–  Interrogate ABS/ESP control unit fault memory –  Check wiring according to current flow diagram –  Perform electrical test → Chapter –  Check CAN bus → Chapter

Fault 01604

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01604 Potentiometer 1 for gear recognition -G239-
	t  Connectors at the potentiometers for gear recognition potentiometer 1 for gear recognition -G239- and potentiometer 2 for gear recognition -G240- were mixed up after a repair	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Only swap the connectors when you have checked this first in the “Read measured value block ” function. Fitting location for potentiometer → Fig.
	t  Wiring to component defective t  Water penetration into connector, corrosion	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Check wiring according to current flow diagram
	t  Potentiometer defective	–  Replace potentiometer → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 01605

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01605 Potentiometer 2 for gear recognition -G240-
	t  Connectors at the potentiometers for gear recognition potentiometer 1 for gear recognition -G239- and potentiometer 2 for gear recognition -G240- were mixed up after a repair	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Only swap the connectors when you have checked this first in the “Read measured value block ” function. Fitting location for potentiometer → Fig.
	t  Wiring to component defective t  Water penetration into connector, corrosion	–  Read measured value block, display group 015 → Anchor and 016 → Anchor –  Check wiring according to current flow diagram
	t  Potentiometer defective	–  Replace potentiometer → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 01612

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
01612 Valve for clutch actuator -N255- open circuit
	t  Wiring to component defective	–  Read measured value block 005 → Anchor –  Check wiring according to current flow diagram
	t  Valve defective	–  Replace hydraulic control unit → 5-speed Manual Gearbox 085 DS; Rep. Gr.34

Fault 65535

Output on -VAS 5051 A-	Possible cause of trouble	Remedy
65535 Control unit defective
l  Only when the possible cause of trouble has been determined and mechanical faults, hydraulic faults or faults affecting electric/electronic components as well as wiring connections have been eliminated, should the control unit -J514- and the system be returned to the basic setting	t  Electronic manual gearbox control unit -J514- defective	–  Replace control unit → Chapter –  Perform basic setting → Chapter