Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 192
DQ-250 6F 02E
DTC
Fault
Code De‐
scription
Monitor Strat‐
egy Descrip‐
tion
Malfunction
Criteria
Threshold
Value
Secondary Pa‐
rameters with
Enable Condi‐
tions
Monitor‐
ing Time
Length
Frequen‐
cy of
checks,
MIL Illum
P0771 Shift Sol‐
enoid "E"
Perform‐
ance/
Stuck Off
• open-circuit
check
• Compari‐
son of re‐
sidual cur‐
rent of
central
control (to‐
tal current
at common
highside
switch 3 –
actual cur‐
rent of
main pres‐
sure valve
and cool‐
ing oil
valve) at
switching
point of
multiplexer
valve with
residual
current at
permanent
control of
multiplexer
valve
• difference
of residual
current <=
150 mA
( maximum
of supply
voltage at
common
highside
1,2 and
terminal 15
=7 V) 300
mA (maxi‐
mum of
supply
voltage at
common
highside
1,2 and
terminal 15
=13 V)
• common
highside
switch 3 on
and not de‐
fect
• no short-cir‐
cuit current
check failure
of main pres‐
sure sole‐
noid valve
• common
highside
switch 1 and
2 voltage >
9.2 V
• common
highside
switches not
deactivated
by module 2
• change of
supply volt‐
age < 1 V
• multiplexer
valve is con‐
trolled and
steady state
time >= 50
ms
• terminal 15
voltage > 9 V
for more than
500 ms
• engine
speed > 500
rpm
P0776 Pressure
Control
Solenoid
"B" Per‐
for‐
mance/
Stuck Off
• pressure in‐
tegral moni‐
toring
• integral of
actual
pressure
minus de‐
sired pres‐
sure minus
drain ex‐
ceeds a
maximum
value
• pressure
integral >=
0,1 bar * s
• desired pres‐
sure <=
adapted
clutch slip‐
ping point + 1
bar
• standing ve‐
hicle with ac‐
celerator
pedal < 0.1%
• battery volt‐
age > 9 V for
more than
500 ms
• engine
speed > 500
rpm
• 300
ms
• 2 driv‐
ing cy‐
cles
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
441
DQ-250 6F 02E
DTC
Fault
Code De‐
scription
Monitor Strat‐
egy Descrip‐
tion
Malfunction
Criteria
Threshold
Value
Secondary Pa‐
rameters with
Enable Condi‐
tions
Monitor‐
ing Time
Length
Frequen‐
cy of
checks,
MIL Illum
• open-circuit
check
• desired
valve cur‐
rent of
clutch 2
exceeds a
threshold
simultane‐
ous the ac‐
tual valve
current is
smaller
than a sec‐
ond
threshold
• desired
current>
350 mA
actual cur‐
rent< 50
mA
• common
highside
switch 2 on,
not defect
and voltage
> 9.2 V
• gearbox sub‐
system 2 ac‐
tive
• common
highside
switches not
deactivated
by module 2
• terminal 15
voltage > 9 V
for more than
500 ms
• engine
speed > 500
rpm
P0777 Pressure
Control
Solenoid
"B" Stuck
On
• pressure
buildup
monitoring
• the num‐
ber of suc‐
cessive
pressure
buildup
failure of
clutch 2
reaches a
maximum
value
• counter > 2 • engaged
gear on input
shaft 2
• desired pres‐
sure > adap‐
ted clutch
slipping point
– 0.2 bar
• output speed
< 200 rpm
• terminal 15
voltage > 4 V
for more than
500 ms
• battery volt‐
age > 9 V for
more than
500 ms
• engine
speed > 600
rpm for more
than 500 ms
• 0 ms • 2 driv‐
ing cy‐
cles
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
442
Rep. Gr. ST - Generic Scan Tool
DQ-250 6F 02E
DTC
Fault
Code De‐
scription
Monitor Strat‐
egy Descrip‐
tion
Malfunction
Criteria
Threshold
Value
Secondary Pa‐
rameters with
Enable Condi‐
tions
Monitor‐
ing Time
Length
Frequen‐
cy of
checks,
MIL Illum
• short-circuit
current
check
• compari‐
son of ac‐
tual valve
current
with de‐
sired valve
current of
clutch 2
• actual cur‐
rent >de‐
sired cur‐
rent and
(actual
current-
desired
current) >
200 mA for
more than
200 ms
• common
highside
switch 2 on,
not defect
and voltage
> 9.2 V
• gearbox sub‐
system 2 ac‐
tive
• common
highside
switches not
deactivated
by module 2
• terminal 15
voltage > 9 V
for more than
500 ms
• engine
speed > 500
rpm
• 200
ms
P0781 1-2 Shift • unable to
disengage
the 1st gear
• gearshift
fork of 1st
gear stays
in shifted
position in
spite of
control to
disengage
• gearshift
fork posi‐
tion > syn‐
chronizing
point 1st
gear +
10% syn‐
chronizing
point
measured
by a basic
adjust‐
ment (1st
gear stays
in shifted
position)
control
gearshift
fork valve
2 >= 5%
• control safe‐
ty valve 1
(ON) >= 20%
• multiplexer
position = 0
• desired main
pressure > 2
bar
• no main
pressure
loss
• terminal 15
voltage > 4 V
for more than
500 ms
• battery volt‐
age > 9 V for
more than
500 ms
• engine
speed > 600
rpm for more
than 500 ms
• 6000
ms
• 2 driv‐
ing cy‐
cles
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
443
DQ-250 6F 02E
DTC
Fault
Code De‐
scription
Monitor Strat‐
egy Descrip‐
tion
Malfunction
Criteria
Threshold
Value
Secondary Pa‐
rameters with
Enable Condi‐
tions
Monitor‐
ing Time
Length
Frequen‐
cy of
checks,
MIL Illum
P0782 2-3 Shift • unable to
disengage
the second
gear
• gearshift
fork of sec‐
ond gear
stays in
shifted po‐
sition in
spite of
control to
disengage
• gearshift
fork posi‐
tion < syn‐
chronizing
point sec‐
ond gear -
10% syn‐
chronizing
point
measured
by a basic
adjust‐
ment (sec‐
ond gear
stays in
shifted po‐
sition) con‐
trol gear‐
shift fork
valve 4 >=
5%
• control safe‐
ty valve 1
(ON) >= 20%
• multiplexer
position = 1
• desired main
pressure > 2
bar
• no main
pressure
loss
• terminal 15
voltage > 4 V
for more than
500 ms
• battery volt‐
age > 9 V for
more than
500 ms
• engine
speed > 600
rpm for more
than 500 ms
• 6000
ms
• 2 driv‐
ing cy‐
cles
P0783 3-4 Shift • unable to
disengage
the third
gear
• gearshift
fork of third
gear stays
in shifted
position in
spite of
control to
disengage
• gearshift
fork posi‐
tion < syn‐
chronizing
point third
gear - 10%
synchro‐
nizing
point
measured
by a basic
adjust‐
ment (third
gear stays
in shifted
position)
control
gearshift
fork valve
1 >= 5%
• control safe‐
ty valve 1
(ON) >= 20%
• multiplexer
position = 0
• desired main
pressure > 2
bar
• no main
pressure
loss
• terminal 15
voltage > 4 V
for more than
500 ms
• battery volt‐
age > 9 V for
more than
500 ms
• engine
speed > 600
rpm for more
than 500 ms
• 6000
ms
• 2 driv‐
ing cy‐
cles
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
444
Rep. Gr. ST - Generic Scan Tool
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