Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 129
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitoring
Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
Fuel Con‐
trol Valve
Short To
Ground
Low Side
• Voltage low
side (hardware
values) < 1.92
– 2.10 V
• Ignition on
• Or
• Ignition off (dur‐
ing ECM keep
alive-time)
• And
• Actuator com‐
manded off
P2414
O2 Sen‐
sor Ex‐
haust
Sample
Error
Bank 1
Sensor
1
Oxygen
Sensors
Front Ra‐
tionality
Check
• Pump current
correction
(nernst-cell) >
0.00 A
• O2S front ready
• Fuel cut off not
active
• Cylinder shut off
not active
• Depending on
engine state:
• Engine part load
• Or
• Engine full load
• Or
• Engine idle for
time >= 5.0 s
• 10.0 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
P2431
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
Range/
Per‐
for‐
mance
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Rationali‐
ty Check
• Difference be‐
tween AIR
pressure and
barometric
pressure > 6.0
kPa
• And
• Difference be‐
tween AIR
pressure and
intake manifold
pressure > 6.0
kPa
• Engine stop
• For time > 0.0 s
• 0.1 s
• Once /
DCY
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
P2432
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
Low
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Out Of
Range
Low
• Sensor voltage
< 0.50 V
• 0.1 s
• Contin‐
uous
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
189
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitoring
Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P2433
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
High
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Out Of
Range
High
• Sensor voltage
> 4.50 V
• 0.1 s
• Contin‐
uous
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
.
P2440
AIR Sys‐
tem
Switch‐
ing
Valve
Stuck
Open
Bank 1
Secon‐
dary Air
Valve
Function‐
al Check
• Ratio relative
pressure
phase 1 and
relative pres‐
sure phase 2 >
1.34 [-]
• General:
• Secondary air
pump active
• Catalyst heating
active
• Secondary air in‐
jection active
• MAF <= 140.0 kg/
h
• ECT @ cylinder
head >= -10; <
115° C
• IAT @ manifold
>= -10; < 100° C
• Modeled catalyst
temperature <
700° C
• Relative baro‐
metric pressure >
0.73 [-]
• And
• Diff. barometric
pressure vs.
manifold pres‐
sure > n.a. kPa
• Or
• Engine n.a.
• 0.1 s
• Once /
DCY
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
.
P2556
Engine
Coolant
Level
Sensor/
Switch
Circuit
Rotary
Coolant
Valve
Commu‐
nication
Check
• Communica‐
tion signal fail‐
ure
• 0.5 s
• Contin‐
uous
• 2
DCY
– Check the En‐
gine Tempera‐
ture Control Ac‐
tuator - N493- .
Refer to
.
Rotary
Coolant
Valve
Signal
Check
• Sensor signal
failure
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
190
Rep. Gr. ST - Generic Scan Tool
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitoring
Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P2557
Engine
Coolant
Level
Sensor/
Switch
Circuit
Range/
Per‐
for‐
mance
Rotary
Coolant
Valve
Check‐
sum Veri‐
fication
• Checksum sig‐
nal failure
• 0.5 s
• Contin‐
uous
• 2
DCY
– Check the En‐
gine Tempera‐
ture Control Ac‐
tuator - N493- .
Refer to
P2564
Turbo‐
charger
Boost
Control
Position
Sensor
"A" Cir‐
cuit Low
Turbo‐
charger
Boost
Control
Position
Sensor
Short To
Ground /
Open Cir‐
cuit
• Turbocharger
boost control
position sensor
voltage < 0.20
V
• 0.5 s
• Contin‐
uous
• 2
DCY
– Check the
Charge Pres‐
sure Actuator -
V465- / Charge
Pressure Actua‐
tor Position Sen‐
sor - G581- . Re‐
fer to
.
P2565
Turbo‐
charger
Boost
Control
Position
Sensor
"A" Cir‐
cuit High
Turbo‐
charger
Boost
Control
Position
Sensor
Short To
Battery
Voltage
• Turbocharger
boost control
position sensor
voltage > 4.80
V
• 0.5 s
• Contin‐
uous
• 2
DCY
– Check the
Charge Pres‐
sure Actuator -
V465- / Charge
Pressure Actua‐
tor Position Sen‐
sor - G581- . Re‐
fer to
P2610
ECM/
PCM
Engine
Off Tim‐
er Per‐
for‐
mance
Engine
Off Time
ECM In‐
ternal
Timer
Check
• Case 1:
• ECM internal
timer initializa‐
tion failure
• Case 2:
• ECM internal
timer commu‐
nication failure
• ECM internal tim‐
er reset not active
• SPI communica‐
tion failure after
reset not detec‐
ted
• 1.3 s
• Contin‐
uous
• 2
DCY
– Check the En‐
gine Control
Module - J623- .
Refer to appro‐
priate repair
manual.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
191
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitoring
Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
Engine
Off Time
ECM Ra‐
tionality
Check
• Difference be‐
tween engine-
off-time and
ECM keep
alive-time >=
12.0 s
• Or
• Engine off time
(hardware val‐
ues) not valid
• Choice of:
• ECM keep alive-
time active
• ECU internal tim‐
er reset not acti‐
vated
• Time delay >= 1.0
s
• Or
• Delay timer for
acquisition of en‐
gine-off-time
(hardware val‐
ues) > 1.0 s
• Or
• Result of low
power check initi‐
alization > 0.0; <
9.0 [-]
• 0.01 s
• Once /
DCY
• Difference be‐
tween engine-
off-time and
ECM keep
alive-time >=
12.0 s
• Time after engine
stop < 86,400.0 s
• Engine off time
plausible
• Engine off time
monitoring not
finished
• Engine off time
signal valid time
after reset < 2.0 s
• And
• Case 1:
• Engine off timer
n.a.
• Or
• Engine off time
n.a.
• Case 2:
• ECM internal tim‐
er active
• SPI communica‐
tion failure after
reset detected
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
192
Rep. Gr. ST - Generic Scan Tool
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