Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 94
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
P0030
HO2S
Heater
Control
Circuit
Bank 1
Sensor
1
Oxygen
Sensors
Heater
Front
Open Cir‐
cuit
• O2S upstream
heater voltage
lower range
1.92 – 2.21 V
• O2S upstream
heater voltage
upper range
2.85 – 3.25 V
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
P0031
HO2S
Heater
Control
Circuit
Low
Bank 1
Sensor
1
Oxygen
Sensors
Heater
Front
Short To
Ground
• O2S upstream
heater voltage
lower range
1.92 – 2.21 V
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
P0032
HO2S
Heater
Control
Circuit
High
Bank 1
Sensor
1
Oxygen
Sensors
Heater
Front
Short To
Battery
Voltage
• O2S upstream
heater driver
temperature >
160.0 – 200.0°
C
• Or
• O2S upstream
heater driver
output current
> 8.0 – 12.0 A
• EGT @ O2S front
>= -273° C
• Actuator com‐
manded on
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
P0036
HO2S
Heater
Control
Circuit
Bank 1
Sensor
2
Oxygen
Sensors
Heater
Rear
Open Cir‐
cuit
• O2S down‐
stream heater
voltage lower
range 1.92 –
2.21 V
• O2S down‐
stream heater
voltage upper
range 2.85 –
3.25 V
• Engine not in
start process
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
P0037
HO2S
Heater
Control
Circuit
Low
Bank 1
Sensor
2
Oxygen
Sensors
Heater
Rear
Short To
Ground
• O2S down‐
stream heater
voltage lower
range 1.92 –
2.21 V
• Engine not in
start process
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
49
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
P0038
HO2S
Heater
Control
Circuit
High
Bank 1
Sensor
2
Oxygen
Sensors
Heater
Rear
Short To
Battery
Voltage
• O2S down‐
stream heater
driver tempera‐
ture > 160.0 –
200.0° C
• Or
• O2S down‐
stream heater
driver output
current > 8.0 –
12.0 A
• EGT @ O2S rear
(binary) >= -273
• Actuator com‐
manded on
• Engine not in
start process
• 2.5 s
• Contin‐
uous
• 2
DCY
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
.
P0045
Turbo‐
charger/
Super‐
charger
Boost
Control
"A" Cir‐
cuit/
Open
Turbo‐
charger
Boost
Pressure
Control
Valve
Open Cir‐
cuit
• Bypass valve
driver load re‐
sistance > 200
kOhm
• Deviation be‐
tween actual and
filtered boost
pressure actuator
position <= 5.0 %
• Boost pressure
actuator control‐
ler not active
• Time delay > 1.0
s
• 0.4 s
• Contin‐
uous
• 2
DCY
– Check the
Charge Pres‐
sure Actuator -
V465- / Charge
Pressure Actua‐
tor Position Sen‐
sor - G581- . Re‐
fer to
.
P0068
MAP/
MAF -
Throttle
Position
Correla‐
tion
Leak to
Intake
Manifold
Rationali‐
ty Check
• Difference be‐
tween target in‐
take manifold
pressure and
actual intake
manifold pres‐
sure < -15.0 –
-10.0 kPa
• Time after engine
start > 5.0 s
• Barometric pres‐
sure > 73.0 –
105.0 kPa
• Engine speed >
576 – 512 RPM
• Engine speed <
3,000 RPM
• IAT @ intake
manifold > -48° C
• ECT @ cylinder
head > -48° C
• Difference be‐
tween engine
speed and fil‐
tered engine
speed < 8,160
RPM
• Difference be‐
tween MAF set
point and filtered
MAF set point <
15.01 mg/rev
• Throttle actuator
commanded on
• 5.0 s
• Contin‐
uous
• 2
DCY
– Check the In‐
take system for
vacuum leaks,
make sure oil
dipstick is push‐
ed properly into
place.
– Check the In‐
take Manifold
Sensor - GX9- .
Refer to
.
– Check the Throt‐
tle Valve Control
Module - GX3- .
Refer to
.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
50
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
Intake Air
System
Rationali‐
ty Check
• General condi‐
tions:
• Filtered lamb‐
da controller in‐
cluded correc‐
tion and adap‐
tion -30.00 –
30.00 %
• Lambda con‐
trol active
• And
• Deviation throt‐
tle area control‐
ler < -60.00 %
• Modeled pres‐
sure quotient
0.10 – 0.60 [-]
• Gradient of intake
manifold pres‐
sure >= -199.90;
<= 199.90 kPa/s
• Vehicle speed <=
1 mph
P0070
Ambient
Air Tem‐
perature
Sensor
Circuit
"A"
CAN:
Ambient
Air Tem‐
perature
Sensor
Short To
Battery
Voltage
Or Open
Circuit
• AAT sensor
voltage (hard‐
ware values) >
4.50 V
• 2.0 s
• Contin‐
uous
• 2
DCY
– Check the Out‐
side Air Temper‐
ature Sensor -
G17- . Refer to
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
51
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
P0071
Ambient
Air Tem‐
perature
Sensor
Circuit
"A"
Range/
Per‐
for‐
mance
Ambient
Air Tem‐
perature
Sensor
Cross
Check
• High side:
• Diff. AAT @
cold start vs.
IAT @ manifold
@ cold start >
25 K
• Diff. AAT @
cold start vs.
ECT @ radiator
outlet @ cold
start > 25 K
• Or
• Low side:
• Diff. IAT @
manifold @
cold start vs.
AAT @ cold
start > 25.0 K
• Diff. ECT @ ra‐
diator outlet @
cold start vs.
AAT @ cold
start > 25.0 K
• Engine off time
>= 360.0 min
• Engine off time
plausible
• Time after engine
start < 1,400.0 s
• Depending on
temperature
slope:
• Diff. actual vs
previous IAT <
256.0 K
• Diff. actual vs
previous ECT @
cylinder head <
256.0 K
• Diff.. actual vs
previous ECT@
radiator outlet <
256.0 K
• Diff. actual vs
previous AAT <
256.0 K
• For time >= 1.0 s
• 0.1 s
• Once /
DCY
• 2
DCY
– Check the Out‐
side Air Temper‐
ature Sensor -
G17- . Refer to
.
P0072
Ambient
Air Tem‐
perature
Sensor
Circuit
"A" Low
CAN:
Ambient
Air Tem‐
perature
Sensor
Short To
Ground
• AAT sensor
voltage < 0.10
V
• 2.0 s
• Contin‐
uous
• 2
DCY
– Check the Out‐
side Air Temper‐
ature Sensor -
G17- . Refer to
.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
52
Rep. Gr. ST - Generic Scan Tool
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