Audi Workshop Service and Repair Manuals

Fault tables: Fault codes 00596 up to 65535

Fault code 00596

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00596 Short circuit between valve wires	t  Open circuit or short to earth or positive in 10-pin connector on gearbox between conductor strip/valve body and wiring harness t  Conductor strip to valve body defective	–  Check wiring and connectors according to current flow diagram –  Perform electrical check, from test step No. 6 onwards → Anchor –  Renew conductor strip → Rep. Gr.38

Fault code 00638 (vehicles with CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00638 Engine/gearbox electrical connection 2 No signal	t  Signal for throttle valve position/accelerator pedal value incorrectly or not transmitted	–  Interrogate fault memory of engine control unit and rectify faults → Rep. Gr.01
l  Signals for throttle valve position/accelerator pedal value are transmitted via CAN bus from engine control unit to automatic gearbox control unit -J217-
	t  Open circuit or short to earth or positive in CAN bus wiring	–  Check CAN bus wiring → Chapter

Fault code 00638 (vehicles without CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00638 Engine/gearbox electrical connection 2 No signal	t  Open circuit or short to earth or positive in wiring	–  Check wiring and connectors according to current flow diagram –  Read measured value block 005 → Anchor –  Interrogate fault memory of engine control unit and rectify faults → Rep. Gr.01
l  Signals for throttle valve position/accelerator pedal value are transmitted via a wiring connection from engine control unit to automatic gearbox control unit -J217-

Fault code 00641

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00641 ATF temperature Signal too large No fault type detected	t  ATF level not OK	–  Check ATF level → Rep. Gr.37
l  A fault will be detected if automatic gearbox control unit -J217- registers an ATF temperature exceeding 148 °C l  If automatic gearbox control unit -J217- detects an ATF temperature which is too high it will shift one gear down and, if necessary, torque converter lock-up clutch will also be closed	t  Gearbox overheating, because e.g. maximum trailer weight of vehicle is exceeded	–  Allow gearbox to cool down, reduce trailer weight
	t  Defective wiring between automatic gearbox control unit -J217- and gearbox oil temperature sender -G93- or defective gearbox oil temperature sender -G93- not detected by self-diagnosis	–  Read measured value block 005 → Anchor –  Perform electrical check, test step No. 19 → Anchor

Fault code 00652

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00652 Gear monitoring Implausible signal	t  ATF level not OK	–  Check ATF level → Rep. Gr.37
l  The ratio of engine speed to gearbox output speed is implausible for the gear which is currently engaged. A fault will be detected if slip speed must be higher than stall speed with torque converter lock-up clutch open	t  Incorrect gearbox speed, gearbox output speed or engine speed not detected by self-diagnosis	–  Rectify fault as described for fault codes 00281 → Anchor, 00293 → Anchor, 00297 → Anchor and 00529 → Anchor
	t  Vehicle speed sender -G68- or gearbox speed sender -G38- dirty or defective	–  Clean or renew vehicle speed sender -G68- or gearbox speed sender -G38- → Rep. Gr.38
	t  Defective multi-function switch -F125- not detected by self-diagnosis	–  Rectify fault as described for fault code 00293 → Anchor
	t  Drive wheel for vehicle speed sender -G68- or for gearbox speed sender -G38- dirty or not in correct position	–  Check drive wheel → Rep. Gr.39
	t  Electrical/hydraulic fault t  Clutch or valve body defective t  ATF pump defective	–  Read measured value block 007 → Anchor and perform road test to determine in which gear fault occurs –  Only renew clutches or valve body after having rectified all causes of fault specified

Fault code 00660 (vehicles with throttle cable)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00660 Kick-down switch -F8-/throttle valve potentiometer -G69- Implausible signal	t  Open circuit or short to earth or positive in wiring	–  Check wiring and connectors according to current flow diagram. Also check for contact corrosion or moisture
l  The kick-down switch -F8- is integrated in the throttle cable l  A fault will be detected if automatic gearbox control unit -J217- registers a kick-down signal when throttle valve value/accelerator pedal value is less than 95 %
	t  Throttle valve module -J338- defective	–  Rectify fault as described for fault code 00518 → Anchor
	t  Throttle cable not properly adjusted t  Kick-down switch -F8- defective	–  Read measured value block 001 → Anchor –  Adjust throttle cable → Rep. Gr.20 –  Perform electrical check, test step No. 14 → Anchor

Fault code 00660 (vehicles with electronic throttle)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
00660 Kick-down switch -F8-/throttle valve potentiometer -G69- Implausible signal	t  Open circuit or short to earth or positive in wiring t  Accelerator pedal module or accelerator position sender -G79- defective	–  Interrogate fault memory of engine control unit and rectify faults → Rep. Gr.01
l  Kick-down signal is transmitted by accelerator pedal module (vehicles with petrol engine) or accelerator position sender -G79- (vehicles with TDI engine) instead of kick-down switch -F8- l  A fault will be detected if automatic gearbox control unit -J217- registers a kick-down signal when throttle valve value/accelerator pedal value is less than 95 %
	t  Throttle valve module -J338- defective	–  Rectify fault as described for fault code 00518 → Anchor
	t  Open circuit or short to earth or positive in CAN bus wiring	–  Check CAN bus wiring → Chapter

Fault code 01166 (vehicles with CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01166 Engine torque signal Implausible signal	t  Fault detected by engine control unit in “actual engine torque”	–  Interrogate fault memory of engine control unit and rectify faults → Rep. Gr.01
	t  Open circuit or short to earth or positive in CAN bus wiring	–  Check CAN bus wiring → Chapter

Fault code 01192

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01192 Torque converter lock-up clutch Mechanical fault	t  Open circuit or short to earth or positive in 10-pin connector on gearbox between conductor strip/valve body and wiring harness	–  Check wiring and connectors according to current flow diagram. Also check for contact corrosion or moisture
l  The ratio of engine speed to gearbox input speed and gearbox output speed with torque converter lock-up clutch engaged is implausible
	t  Defective conductor strip not detected by self-diagnosis	–  Renew conductor strip → Rep. Gr.38
	t  Incorrect gearbox output speed or engine speed not detected by self-diagnosis	–  Rectify fault as described for fault codes 00281 → Anchor, 00529 → Anchor
	t  Solenoid valve 4 -N91- or spool valve operated by it sticking	–  Read measured value block 007 → Anchor –  Renew solenoid valve or valve body → Rep. Gr.38
	t  Torque converter lock-up clutch defective or worn t  Torque converter defective	–  Renew torque converter → Rep. Gr.32

Fault code 01236

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01236 Selector lever lock solenoid -N110- Open circuit / short to earth	t  Open circuit or short to earth in wiring t  Selector lever lock solenoid -N110- defective	–  Check wiring and connectors according to current flow diagram –  Read measured value block 005 → Anchor –  Perform electrical check, test steps No. 2 → Anchor and No. 13 → Anchor

Fault code 01312 (vehicles with CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01312 Data bus drive defective No communication	t  Open circuit or short to earth or positive in CAN bus wiring	–  Check CAN bus wiring → Chapter
	t  ABS control unit -J104- incorrectly coded	–  Check ABS control unit -J104- and encode if necessary → Running gear, self-diagnosis; Rep. Gr.01
	t  Engine control unit incorrectly coded	–  Check engine control unit and encode if necessary → Rep. Gr.01

Fault code 01314 (vehicles with CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01314 Engine control unit No communication Wrong equipment	t  Open circuit or short to earth or positive in CAN bus wiring	–  Check CAN bus wiring → Chapter
l  Fault type “Wrong equipment” will be detected if engine control unit has been encoded for manual gearbox	t  Incorrect or incorrectly coded engine control unit	–  Check engine control unit and encode if necessary → Rep. Gr.01
l  Fault type “Wrong equipment” will be detected if an automatic gearbox control unit -J217- not matching engine version is installed. As control unit cannot be coded it must be renewed	t  Incorrect automatic gearbox control unit -J217-	–  Check automatic gearbox control unit -J217- → Anchor

Fault code 01316 (vehicles with CAN bus)

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
01316 Brake control unit No communication	t  CAN bus wiring defective t  Fault in ABS system	–  Check CAN bus wiring → Chapter –  Check ABS control unit -J104- and encode if necessary → Running gear, self-diagnosis; Rep. Gr.01
	t  Incorrect or incorrectly coded ABS control unit -J104-	–  Check ABS control unit -J104- and encode if necessary → Running gear, self-diagnosis; Rep. Gr.01

Fault code 65535

Display on -VAS 5051B-	Possible cause of fault	How to rectify fault
65535 Control unit defective	t  Automatic gearbox control unit -J217- defective	–  Check gearbox for mechanical and hydraulic faults –  Check electrical/electronic components and wiring –  Renew control unit, automatic gearbox control unit -J217- –  Perform basic setting → Chapter.