Content .. 118 119 120 121 ..

Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 120

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

P2097

Post

Catalyst

Fuel

Trim

System

Too

Rich

Bank 1

Fuel Sys‐

tem Out

Of Range

High

• Adaption value

< -0.05 [-]

• 2nd lambda con‐

trol n.a.

• Catalyst purge

not active

• Engine speed >=

704 RPM

• Integrated mass

for fuel in oil <

255.00 [-]

• Choice of:
• O2S rear (binary)

check not active

• Or
• O2S rear (binary)

check finished

• 5.0 s
• Contin‐

uous

• 2

DCY

– Check exhaust

system visually

for leaks first

and correct as

necessary.

– Check the Oxy‐

gen Sensor 1 Af‐

ter Catalytic

Converter -

GX7- . Refer to

P2100

Throttle

Actuator

"A" Con‐

trol Mo‐

tor Cir‐

cuit/

Open

Throttle

Actuator

Open Cir‐

cuit

• Electronic

throttle valve

driver load re‐

sistance >

200.0 kOhm

• Difference be‐

tween measured

and filtered throt‐

tle position <=

0.073° TPS

• Actuator com‐

manded off

• 0.1 s
• Contin‐

uous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

P2101

Throttle

Actuator

"A" Con‐

trol Mo‐

tor Cir‐

cuit

Range/

Per‐

for‐

mance

Throttle

Actuator

Over

Tempera‐

ture

• Electronic

throttle valve

driver tempera‐

ture (hardware

values) > 170.0

– 190.0° C

• Actuator com‐

manded on

• 0.1 s
• Contin‐

uous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

P2103

Throttle

Actuator

"A" Con‐

trol Mo‐

tor Cir‐

cuit High

Throttle

Actuator

Short Cir‐

cuit

• Electronic

throttle valve

driver current

(hardware val‐

ues) > 9.3 –

15.0 A

• Actuator com‐

manded on

• 0.1 s
• Contin‐

uous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

P2122

Throttle/

Pedal

Position

Sensor/

Switch

"D" Cir‐

cuit Low

Accelera‐

tor Pedal

Position

Sensor 1

Out Of

Range

Low

• Signal voltage

sensor 1 < 0.40

• 0.3 s
• Contin‐

uous

• 2

DCY

– Check the Ac‐

celerator Pedal

Module - GX2- .

Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

153

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

P2123

Throttle/

Pedal

Position

Sensor/

Switch

"D" Cir‐

cuit High

Accelera‐

tor Pedal

Position

Sensor 1

Out Of

Range

High

• Signal voltage

sensor 1 > 4.82

• 0.3 s
• Contin‐

uous

• 2

DCY

– Check the Ac‐

celerator Pedal

Module - GX2- .

Refer to

P2127

Throttle/

Pedal

Position

Sensor/

Switch

"E" Cir‐

cuit Low

Accelera‐

tor Pedal

Position

Sensor 2

Out Of

Range

Low

• Signal voltage

sensor 2 < 0.20

• 0.3 s
• Contin‐

uous

• 2

DCY

– Check the Ac‐

celerator Pedal

Module - GX2- .

Refer to

P2128

Throttle/

Pedal

Position

Sensor/

Switch

"E" Cir‐

cuit High

Accelera‐

tor Pedal

Position

Sensor 2

Out Of

Range

High

• Signal voltage

sensor 2 > 2.80

• 0.3 s
• Contin‐

uous

• 2

DCY

– Check the Ac‐

celerator Pedal

Module - GX2- .

Refer to

P2138

Throttle/

Pedal

Position

Sensor/

Switch

"D"/"E"

Voltage

Correla‐

tion

Accelera‐

tor Pedal

Position

Sensor 1

And 2 Ra‐

tionality

Check

• Difference be‐

tween signal

voltage sensor

1 and sensor 2

> 0.10 – 0.12 V

• 0.4 s
• Contin‐

uous

• 2

DCY

– Check the Ac‐

celerator Pedal

Module - GX2- .

Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

154

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

P2177

System

Too

Lean Off

Idle

Bank 1

Fuel Sys‐

tem Di‐

rect Fuel

Injection

System

Too Lean

• Adaptive value

>= 30.0 %

• Barometric pres‐

sure > 73.0 kPa

• MAF > 60.0 mg/

rev

• Engine speed >

576 RPM

• ECT @ cylinder

head > 20° C

• IAT @ manifold >

-48° C

• AAT > -48° C
• Lambda set point

0.95 – 1.05 [-]

• Lambda control

closed loop

• Integrated MAF

>= 5.0 – 200.0 g

• Lambda adapta‐

tion active

• Vehicle speed < 4

mph

• Driver request

low dynamics

• And
• Mass fuel flow

lower range >

0.00 mg/rev

• Mass fuel flow

upper range <

0.00 – 17.74 mg/

rev

• Or
• Evap purge valve

closed

• Or
• Canister load <=

1.20 [-]

• Evap purge flow

at max. value

• Or
• Dependence on

canister purge

min:

• Lower limit of

lambda controller

output n.a.

• Or

• 5.0 s
• Contin‐

uous

• 2

DCY

– Check the intake

and vacuum ho‐

ses visually for

leaks. Check the

Positive Crank‐

case Ventilation

visually. 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

– Check the In‐

take Manifold

Sensor - GX9- .

Refer to

– Check the EVAP

Canister Purge

Regulator Valve

1 - N80- . Refer

– Check the Fuel

Injectors . Refer

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

155

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

• Upper limit of

lambda controller

output n.a.

• And
• Evap purge flow

at min. value

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

156

Rep. Gr. ST - Generic Scan Tool

Content .. 118 119 120 121 ..