Content .. 160 161 162 163 ..

Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 162

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

P12A2

Fuel Rail

Pres‐

sure

Sensor

Inap‐

propri‐

ately

High

Fuel Sys‐

tem Pres‐

sure Sen‐

sor, High

Pressure

Side Ra‐

tionality

Check

High

• Deviation

lambda of con‐

troller included

adaptation >

30.00%

• And
• High pressure

controller out‐

put < -35 mg

• General:
• Engine speed

608 – 6,816 rpm

• Fuel mass set‐

point 5.00 –

1,389.00 mg/rev

• Time after

change to DFI not

equipped s

• Time after engine

start > 10.0 s

• Engine warm-up

not active

• Catalyst heating

not active

• Full load not ac‐

tive

• Catalyst purge

not active

• Lambda control

closed loop

• Evap purge func‐

tionality diagno‐

sis not active

• Fuel pressure

setpoint gradient

<= 34,777.60 kPa

• And
• Depending on

low dynamic con‐

ditions:

• Fuel mass set‐

point lower range

> 5.00 mg/rev

• For time >= 10.0 s
• Fuel mass set‐

point upper range

< 187.17 – 229.23

mg/rev

• Fuel mass set‐

point gradient

-1,389.00 –

1,389.00 mg/rev

• For time >= 5.0 s
• And
• Depending on

canister purge:

• Canister load <=

1.00 [-]

• 5.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Fuel

Pressure Sen‐

sor - G247- . Re‐

fer to

– Check the Fuel

Delivery Unit -

GX1- . Refer to

– Check the fuel

pressure. Refer

to appropriate

repair manual.

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

321

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

• Or
• Evap purge valve

not active or

closed

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

322

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

P12A4

Fuel Rail

Pump

Control

Valve

Stuck

Closed

Fuel Sys‐

tem Pres‐

sure Sen‐

sor, High

Pressure

Side Out

Of Range

High

• Deviation be‐

tween fuel

pressure set‐

point and cur‐

rent fuel pres‐

sure <

-2999.90 kPa

• Deviation

lambda of con‐

troller included

adaption

-50.00 – 50.00

• Case 1:
• High pressure

controller out‐

put < -45 mg

• Case 2:
• Flow control

valve open

• Mass fuel flow

setpoint >

15.01 mg/rev

• General:
• Engine speed

608 – 6,816 rpm

• Fuel mass set‐

point 5.00 –

1,389.00 mg/rev

• Time after engine

start > 10.0 s

• Engine warm-up

not calibrated

• Catalyst heating

not calibrated

• Full load not cali‐

brated

• Catalyst purge

not calibrated

• Lambda control

not calibrated

• Evap purge func‐

tionality diagno‐

sis not calibrated

• Fuel pressure

setpoint gradient

<= 34,777.60 kPa

• And
• Depending on

low dynamic con‐

ditions:

• Fuel mass set‐

point lower range

> 5.00 mg/rev

• For time >= 10.0 s
• Fuel mass set‐

point upper range

< 187.17 – 229.23

mg/rev

• Fuel mass set‐

point gradient

-1,389.00 –

1,389.00 mg/rev

• For time >= 5.0 s
• And
• Depending on

canister purge:

• Canister load not

calibrated [-]

• Or
• Evap purge valve

not calibrated

• 5.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Fuel

Pressure Sen‐

sor - G247- . Re‐

fer to

– Check the Fuel

Delivery Unit -

GX1- . Refer to

– Check the fuel

pressure. Refer

to appropriate

repair manual.

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

323

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

P13EA

Cold

Start Ig‐

nition

Timing

Per‐

for‐

mance

Off Idle

Ignition

Control

Ignition

Timing

Monitor

• Ratio between

ignition angle

efficiency inte‐

gral and time at

part load > 0.16

[-]

• Time @ part load

> 5.0 s

• Ignition angle set

point <= 0.94 [-]

• Engine part load
• Vehicle speed > 2

mph

• And
• Diff. air mass set

point vs. filtered

air mass set point

for load dynamic

detection <

99.999.0 mg/rev

• For time >= 0.0 s
• And
• Diff. engine

speed vs. filtered

engine speed for

engine speed dy‐

namic detection <

8,160 RPM

• For time >= 0.0 s

• 0.1 s
• Once /

DCY

• 2

DCY

– Check the En‐

gine Speed Sen‐

sor - G28- . Re‐

fer to

– Check the Igni‐

tion Coils with

Power Output

Stage . Refer to

– Check for any

Engine Speed

sensor or Igni‐

tion Coil faults

and diagnose

them first.

– If NO other co‐

des are set,

check the ECM.

Refer to appro‐

priate repair

manual.

P1545

Throttle

Actuator

"A" Con‐

trol Mo‐

tor Cir‐

cuit

Range/

Per‐

for‐

mance

Throttle

Actuator

Out Of

Range

• Control duty

cycle > 98.0 %

• Throttle position

not at min. value

• Throttle adapta‐

tion not active

• Throttle actuator

commanded on

• 5.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

Throttle

Actuator

Rationali‐

ty Check

• Difference be‐

tween throttle

position set

point and throt‐

tle flap opening

angle for elec‐

tronic throttle

control > 2.998

– 24.982° TPS

• Throttle adapta‐

tion (@ initial start

or after detection

of throttle ex‐

change or check‐

sum error) not ac‐

tive

• Throttle actuator

commanded on

• Difference be‐

tween throttle po‐

sition set point

and throttle flap

opening angle <=

1.999; > -1.999°

TPS

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

324

Rep. Gr. ST - Generic Scan Tool

Content .. 160 161 162 163 ..