Volkswagen Golf / Golf GTI / Golf Variant. Service manual - part 135

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

P0090

Fuel

Pres‐

sure

Regula‐

tor 1

Control

Circuit/

Open

Fuel Vol‐

ume Reg‐

ulator

Control

open cir‐

cuit

• Voltage high

side < 1.87 –

2.26 V

• Voltage low

side > 2.78 –

3.33 V

• Engine speed >

600 rpm

• And
• Fuel cut off not

active

• Actuator com‐

manded on

• 0.8 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Fuel

Pressure Regu‐

lator Valve -

N276- . Refer to

⇒ “3.6.16  Fuel

Pressure Regu‐

lator Valve

N276 , Check‐

ing”, page 489

 .

• Low and high

side Off:

• Voltage low

side > 2.78 –

3.33 V

• Voltage high

side < 1.87 –

2.26 V

• Low and high

side On:

• Current low

side driver

stage internal

value

• Current high

side driver

stage internal

value

P0091

Fuel

Pres‐

sure

Regula‐

tor 1

Control

Circuit

Low

Fuel Vol‐

ume Reg‐

ulator

Control

short to

ground

(high

side)

• Current high

side driver

stage internal

value (hard‐

ware values)

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded on

• 0.8 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Fuel

Pressure Regu‐

lator Valve -

N276- . Refer to

⇒ “3.6.16  Fuel

Pressure Regu‐

lator Valve

N276 , Check‐

ing”, page 489

 .

Fuel Vol‐

ume Reg‐

ulator

Control

short to

ground

(low side)

• Voltage low

side < 1.87 –

2.26 V (hard‐

ware values)

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded off

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing    

213

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

P0092

Fuel

Pres‐

sure

Regula‐

tor 1

Control

Circuit

High

Fuel Con‐

trol Valve

Short To

Battery

Plus (Low

Side)

• Current low

side (hardware

values) driver

stage internal

value

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded on

• 0.8 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Fuel

Pressure Regu‐

lator Valve -

N276- . Refer to

⇒ “3.6.16  Fuel

Pressure Regu‐

lator Valve

N276 , Check‐

ing”, page 489

 .

Fuel Con‐

trol Valve

Short To

Battery

Plus

(High

Side)

• Voltage high

side (hardware

values) < 2.78

– 3.33 V

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded off

P00B7

Engine

Coolant

Flow

Low/

Per‐

for‐

mance

Rotary

Coolant

Valve

Function‐

al Check

• Diff. previous

and actual po‐

sition of RVC <

4.0°

• ECT @ cylinder

head > 11° C

• RCV position

0.00 – 270.0°

• Diff. previous ac‐

tual and target

position of RCV >

5.0°

• And
• RCV adaptation

finished

• Or
• RCV adaptation

not active

• 3.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check coolant

system for leaks

or damage.

– Check the En‐

gine Tempera‐

ture Control Ac‐

tuator - N493- .

Refer to

⇒ “3.6.12  En‐

gine Tempera‐

ture Control Ac‐

tuator N493 ,

Checking”, page

481

 .

.

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

214

     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

P0106

Manifold

Abso‐

lute

Pres‐

sure/

Baro‐

metric

Pres‐

sure

Sensor

Circuit

Range/

Per‐

for‐

mance

Manifold

Pressure

Sensor

By En‐

gine

Standing:

Rationali‐

ty Check

During

ECM

Keep

Alive-

Time:

• Case 1:
• Diff. barometric

pressure vs. in‐

take manifold

pressure >=

8.50 kPa

• Diff. upstream

throttle pres‐

sure vs. intake

manifold pres‐

sure > 8.50 kPa

• Diff. barometric

pressure vs.

upstream throt‐

tle pressure <

8.50 kPa

• Case 2:
• Intake manifold

pressure (raw

value) < 25.00;

> 125.00 kPa

• Case 3;
• Diff. barometric

pressure vs. in‐

take manifold

pressure n.a.

kPa

• Diff. upstream

throttle pres‐

sure vs. intake

manifold pres‐

sure n.a. kPa

• Diff. barometric

pressure vs.

upstream throt‐

tle pressure

n.a. kPa

• Diff. intake

manifold pres‐

sure vs. intake

manifold pres‐

sure @ idle or

low part load

n.a. kPa

• Case 4:
• Diff. barometric

pressure vs. in‐

take manifold

pressure n.a.

kPa

• Diff. upstream

throttle pres‐

sure vs. intake

manifold pres‐

sure n.a. kPa

• Engine stopped
• Ignition off
• Vehicle speed < 1

mph

• ECM keep alive

time > 10.0 s

• Delay time after

engine stop >=

5.0 s

• Barometric pres‐

sure sensor volt‐

age 0.20 - 4.80 V

• MAP sensor volt‐

age 0.20 – 4.80 V

• Turbocharger

boost pressure

sensor voltage

0.20 – 4.80 V

• 3.0 s
• Once /

DCY

• 2

DCY

– Check the In‐

take Manifold

Sensor - GX9- .

Refer to

⇒ “3.6.23  Intake

Manifold Sensor

GX9 , Check‐

ing”, page 505

 .

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing    

215

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

• Diff. barometric

pressure vs.

upstream throt‐

tle pressure

n.a. kPa

• Diff. intake

manifold pres‐

sure vs. intake

manifold pres‐

sure @ idle or

low part load

n.a. kPa

Intake Air

System

Rationali‐

ty Check

• General condi‐

tions:

• Filtered lamb‐

da controller in‐

cluded correc‐

tion and adap‐

tation < -30.0 %

• And
• Deviation throt‐

tle area control‐

ler > 45.0 %

• Throttle position

> 0.0° TPS

• Throttle position

< 100.003° TPS

• Engine speed >

576; < 3008 RPM

• Modeled pres‐

sure quotient >

0.27; < 0.57 [-]

• Engine running
• Throttle actuator

commanded on

• Time after engine

start > 5.0 s

• Throttle position

sensor failure not

detected

• Fuel cut off not

active

• Fast throttle

adaptation finish‐

ed

• Gradient intake

manifold pres‐

sure -199.90 –

199.90 kPa/s

• Barometric pres‐

sure plausibility

diagnosis finish‐

ed

• Intake manifold

modeled adapta‐

tion active

• And
• Choice of:
• MAF sensor ac‐

tive

• Or

• 5.0 s
• Con‐

tinu‐

ous

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

216

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