Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 190
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
P0735 Gear 5 In‐
correct
Ratio
• synchroniz‐
ing detec‐
tion while
the gear‐
shift fork
was control‐
led to en‐
gage fifth
gear
• integral
that corre‐
sponds to
the energy
flux in the
synchroni‐
zation ex‐
ceeds a
maximum
value. The
integral
calculation
depends
on syn‐
chronizing
slip and
duty factor
of the safe‐
ty valve 1
• integral >
125
• no slipping
point adapta‐
tion of clutch
1
• multiplexer
position = 1
• control gear‐
shift fork
valve 1>=
5%
• 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
• syn‐
chron‐
izing
slip,
duty
factor
of
safety
valve
1
• 2 driv‐
ing cy‐
cles
P0736 Reverse
Incorrect
Ratio
• unable to
disengage
the reverse
gear
• gearshift
fork of re‐
verse gear
stays in
shifted po‐
sition in
spite of
control to
disengage
• gearshift
fork posi‐
tion < syn‐
chronizing
point re‐
verse gear
- 10% syn‐
chronizing
point
measured
by a basic
adjust‐
ment (re‐
verse gear
stays in
shifted po‐
sition) con‐
trol gear‐
shift fork
• control safe‐
ty valve 2
(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
433
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
• synchroniz‐
ing detec‐
tion while
the gear‐
shift fork
was control‐
led to en‐
gage re‐
verse gear
• integral
that corre‐
sponds to
the energy
flux in the
synchroni‐
zation ex‐
ceeds a
maximum
value. The
integral
calculation
depends
on syn‐
chronizing
slip and
duty factor
of the safe‐
ty valve 2
• integral >
125
• no slipping
point adapta‐
tion of clutch
1
• multiplexer
position = 0
• control gear‐
shift fork
valve 4 >=
5%
• 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
P0746 Pressure
Control
Solenoid
"A" 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
434
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
• open-circuit
check
• desired
valve cur‐
rent of
clutch 1
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 1 on,
not defect
and voltage
> 9.2 V
• gearbox sub‐
system 1 ac‐
tive
• common
highside
switches not
deactivated
by module 2
• terminal 15
voltage > 9 V
for more than
500 ms
• engine
speed > 500
rpm
P0747 Pressure
Control
Solenoid
"A" Stuck
On
• pressure
buildup
monitoring
• the num‐
ber of suc‐
cessive
pressure
buildup
failure of
clutch 1
reaches a
maximum
value
• counter > 2 • engaged
gear on input
shaft 1
• 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
3. Diagnosis and Testing
435
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 1
• actual
current>de‐
sired cur‐
rent and
(actual cur‐
rent- de‐
sired cur‐
rent)> 200
mA for
more than
200 ms
• common
highside
switch 1 on,
not defect
and voltage
> 9.2 V
• gearbox sub‐
system 1 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
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
436
Rep. Gr. ST - Generic Scan Tool
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