Content .. 135 136 137 138 ..

Volkswagen Golf / Golf GTI / Golf Variant. Service manual - part 137

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitor‐

ing Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

Engine

Coolant

Tempera‐

ture Sen‐

sor @

Cylinder

Head Ra‐

tionality

Check

High

• Difference be‐

tween maxi‐

mum and mini‐

mum tempera‐

ture of ECT @

cylinder head <

1° C

• ECT @ cylin‐

der head @ en‐

gine start > 40 –

80° C

• ECT @ cylinder

head > -256° C

• IAT @ throttle

-48...143° C

• Depending on

thermostat con‐

trol:

• ECT @ cylinder

head n.a.° C

• Or
• ECT @ cylinder

head n.a.° C

• Engine n.a.
• And
• Engine part load
• Or
• Engine full load
• Engine speed >

1300 rpm

• Vehicle speed >=

12 mph

• Engine load >

2.00 %

• For time >= 20.0 –

43.0 s

• Engine idle
• Vehicle speed < 3

mph

• Or
• Fuel cut off active
• Or
• Engine stop for

time >= 20.0 –

43.0 s

• Time after engine

start > 100 s

Engine

Coolant

Tempera‐

ture Sen‐

sor @

Cylinder

Head Ra‐

tionality

Check

Low

• Difference be‐

tween model‐

led and meas‐

ured cylinder

head tempera‐

ture > 5° C

• ECT @ cylinder

head -128 – 127°

• Time after engine

start > 60.0 s

• 30 s
• Once /

DCY

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

221

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitor‐

ing Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

P0117

Engine

Coolant

Temper‐

ature

Sensor

1 Circuit

Low

Engine

Coolant

Tempera‐

ture Sen‐

sor @

Cylinder

Head

Short To

Ground

• ECT sensor

voltage @ cyl‐

inder head <

0.30 V

• 0.5 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the En‐

gine Coolant

Temperature

Sensor - G62- .

Refer to

P0118

Engine

Coolant

Temper‐

ature

Sensor

1 Circuit

High

Engine

Coolant

Tempera‐

ture Sen‐

sor @

Cylinder

Head

Short To

Battery /

Open Cir‐

cuit

• ECT sensor

voltage @ cyl‐

inder head >

4.90 V

• Modeled IAT @

throttle >= -33° C

• Time after engine

start > 60.0 s

• 0.5 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the En‐

gine Coolant

Temperature

Sensor - G62- .

Refer to

P0121

Throttle/

Pedal

Position

Sensor/

Switch

"A" Cir‐

cuit

Range/

Per‐

for‐

mance

Throttle

Position

Sensor 1

Rationali‐

ty Check

• Normalized dif‐

ference be‐

tween meas‐

ured and mod‐

eled value of

mass air flow

from TPS 1 >=

1.00 [-]

• Or
• Relative mass

air flow integral

from TPS 1 >

60.0 [-]

• Throttle adapta‐

tion not active

• 0.01 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

• Difference be‐

tween TPS 1

and TPS 2 >

6.499° TPS

• 0.3 s
• Con‐

tinu‐

ous

P0122

Throttle/

Pedal

Position

Sensor/

Switch

"A" Cir‐

cuit Low

Throttle

Position

Sensor 1

Short To

Ground /

open cir‐

cuit

• Throttle posi‐

tion sensor 1

voltage < 0.15

• 0.2 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

P0123

Throttle/

Pedal

Position

Sensor/

Switch

"A" Cir‐

cuit High

Throttle

Position

Sensor 1

Short To

Battery

Voltage

• Throttle posi‐

tion sensor 1

voltage > 4.85

• 0.2 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

222

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

Monitor‐

ing Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

P0131

O2 Sen‐

sor Cir‐

cuit Low

Voltage

Bank 1

Sensor

Oxygen

Sensors

Front

Short To

Ground

• O2S sensor

voltage < 0.15

• Engine running

• 0.5 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Oxy‐

gen Sensor 1

Before Catalytic

Converter -

GX10- . Refer to

P0132

O2 Sen‐

sor Cir‐

cuit High

Voltage

Bank 1

Sensor

Oxygen

Sensors

Front

Short To

Battery

Voltage

• O2S sensor

voltage > 5.20

– 5.35 V

• Engine running

• 0.5 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Oxy‐

gen Sensor 1

Before Catalytic

Converter -

GX10- . Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

223

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitor‐

ing Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

P0133

O2 Sen‐

sor Cir‐

cuit

Slow

Re‐

sponse

Bank 1

Sensor

Oxygen

Sensors

Front Re‐

sponse

Check

• Dynamic Path:
• Lambda value

vs. modeled

lambda value

>= 1.10 [-]

• Or
• Ratio of failed

diagnostic cy‐

cle > n.a. [-]

• General condi‐

tions:

• Injection mode

change (DFI/MFI)

not active

• ECT @ cylinder

head >= -48° C

• Vehicle speed > 0

mph

• Integrated air

mass after gear

change > 0.0 g

• Air mass , lower

range >= 0.00

mg/rev

• Air mass , upper

range <= 1389.00

mg/rev

• Counter of inte‐

grated mass for

fuel in oil < 255.00

[-]

• And
• Time after engine

start >= 0.0 s

• Or
• Integrated air

mass per cylinder

>= 0.00 kg

• Depending on

canister and cat‐

alyst purge:

• Evap purge n.a.
• Or
• Evap purge n.a.
• Or
• Evap purge n.a.
• Canister load cal‐

culation n.a.

• Or
• Evap purge n.a.
• Canister load n.a.

[-]

• And
• Case 1:
• O2S front n.a.

• 2.4 s
• Once /

DCY

• 1

DCY

– Check the Oxy‐

gen Sensor 1

Before Catalytic

Converter -

GX10- . Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

224

Rep. Gr. ST - Generic Scan Tool

Content .. 135 136 137 138 ..