Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 101
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
• Low dynamic
conditions devia‐
tion actual
• And
• Target engine
speed < 150 RPM
• Dynamic MAF <
15.01 mg/rev
• Dynamic lambda
controller output
<= 20.0 %
• And
• Integrated MAF
after dynamic
conditions are ful‐
filled > 20.0 g
• Time after a cata‐
lyst purge phase
>= 1.0 s
• O2S rear voltage
@ diagnosis start
>= 0.55 V
• Integrated MAF
to start diagnosis
>= 5.0 g
• Integrated heat
energy >= 800.0
– 2,000.0 kJ
• Engine speed
1,248 – 3,008
RPM
• Coasting function
n.a O2S
• Heater rear ac‐
tive
• Lambda adapta‐
tion not active
• Valve lift n.a.
• And depending
on lambda con‐
trol
• Intervention of
trim control be‐
havior activation
of catalyst diag‐
nosis < 0.10 [-]
• Or
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
77
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
• Intervention of
trim control dur‐
ing active catalyst
diagnosis < 0.20
[-]
• Depending on
canister purge:
• Canister load <=
n.a. [-]
• Evap purge flow
n.a.
• Or
• Canister load cal‐
culation n.a.
• Evap purge flow
n.a.
• Or
• Evap purge valve
n.a
• Depending on
canister purge
closing:
• Canister purge
(conditions) n.a.
• Canister purge
valve ( closing
time ) n.a.
• And choice of:
• Evap purge valve
n.a. or evap
purge valve n.a.
and modeled
MAF-integral >
0.0 g
• Depending on
transmission
type: For MT
• Integrated MAF
per cylinder >=
0.0 kg
• For AT
• Integrated MAF
per cylinder >=
0.0 kg
• For DCT
• Integrated MAF
per cylinder >=
0.0 kg
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
78
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
P0140
O2 Sen‐
sor Cir‐
cuit No
Activity
Detec‐
ted Bank
1 Sen‐
sor 2
Oxygen
Sensors
Rear
Open Cir‐
cuit
• Internal resist‐
ance of O2S
(binary) >
25,000.0 Ohm
• 2.5 s
• Contin‐
uous
• 1
DCY
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
P0141
O2 Sen‐
sor
Heater
Circuit
Bank 1
Sensor
2
Oxygen
Sensors
Heater
Rear Out
Of Range
High
• Internal resist‐
ance of O2S
(binary) 700.0 –
25,000.0 Ohm
• Stir up O2S heat‐
er front (linear)
finished
• 20.0 s
• Once /
DCY
• 1
DCY
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
P0149
Fuel
Timing
Error
Injection
Valves
Supply
Voltage
Out Of
Range
Low
• Boost voltage <
30.0 V
• Engine running
>= 0.3 s
• 3.6 s
• Contin‐
uous
• 2
DCY
– Check the En‐
gine Control
Module - J623- .
Refer to appro‐
priate repair
manual.
• Boost voltage
<= 50.0 V
Injection
Valves
Supply
Voltage
Out Of
Range
High
• Boost voltage >
75.0 V
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
79
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
P0171
System
Too
Lean
Bank 1
Fuel Sys‐
tem, Sys‐
tem Too
Lean
• Lambda con‐
troller output >
35.0 %
• Lambda control
closed loop
• Barometric pres‐
sure > 73.0 kPa
• Mass air flow >
60.0 mg/rev
• Engine speed >
576 RPM
• ECT @ cylinder
head > 20° C
• IAT at intake
manifold > -48° C
• AAT > -48° C
• 60.0 s
• Contin‐
uous
• 2
DCY
– Check the intake
and vacuum ho‐
ses for leaks,
Check the Posi‐
tive Crankcase
Ventilation, also
make sure the
oil dipstick is
properly se‐
cured.
– Listen to and vis‐
ually inspect the
Exhaust system
to insure there
are no leaks.
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
.
– Check the Oxy‐
gen Sensor 1 Af‐
ter Catalytic
Converter -
GX7- . Refer to
.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
80
Rep. Gr. ST - Generic Scan Tool
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