Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 156

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

P0491

AIR Sys‐

tem In‐

suffi‐

cient

Flow

Bank 1

Secon‐

dary Air

System

Function‐

al Check

• Case 1:
• Blockage: ratio

relative meas‐

ured secon‐

dary air pres‐

sure and mod‐

elled secon‐

dary air pres‐

sure [tube

blocked] < 0.70

[-]

• Or
• Leakage: ratio

relative meas‐

ured secon‐

dary air pres‐

sure and mod‐

elled secon‐

dary air pres‐

sure [leak diag‐

nosis] < 0.65 [-]

• Case 2:
• Diff. expected

integrated sec‐

ondary air

pressure pul‐

sations and ac‐

tual integrated

secondary air

pressure pul‐

sations n.a.

kPa

• Case 3:
• Blockage: ratio

relative meas‐

ured secon‐

dary air pres‐

sure and mod‐

elled secon‐

dary air pres‐

sure [tube

blocked] < 0.40

[-]

• Or
• Leakage: ratio

relative meas‐

ured secon‐

dary air pres‐

sure and mod‐

elled secon‐

dary air pres‐

sure [leak diag‐

nosis] < 0.15 [-]

• General:
• Secondary air

pump active

• Catalyst heating

active

• Secondary air in‐

jection active

• MAF <= 140.0 kg/

h

• ECT @ cylinder

head >= -10; <

115° C

• IAT @ manifold

>= -10; < 100° C

• Modelled catalyst

temperature <

900° C

• Relative baro‐

metric pressure >

0.73 [-]

• Diff. barometric

pressure vs.

manifold pres‐

sure > n.a. kPa

• 0.1 s
• Once /

DCY

• 2

DCY

– Check the Sec‐

ondary Air Sys‐

tem - GX24- .

Refer to

⇒ “3.6.30  Sec‐

ondary Air Injec‐

tion Sensor 1

G609 / Secon‐

dary Air Injection

Solenoid Valve

N112 , Check‐

ing”, page 521

 .

– Check the Sec‐

ondary Air Injec‐

tion Pump Motor

- V101- / Secon‐

dary Air Injection

Pump Relay -

J299- . Refer to

⇒ “3.6.29  Sec‐

ondary Air Injec‐

tion Pump Motor

V101 / Secon‐

dary Air Injection

Pump Relay

J299 , Check‐

ing”, page 519

 .

P0501

Vehicle

Speed

Sensor

"A" Cir‐

CAN: Ve‐

hicle

Speed

Sensor

CAN

• Speed sensor

fault value: Out

of range high

failure

• 0.5 s • 2

DCY

– Check the Vehi‐

cle Speed Sig‐

nal. Refer to

⇒ “3.6.33 Vehi‐

cle Speed Sig‐

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing    

297

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

cuit

Range/

Per‐

for‐

mance

Commu‐

nication

With Ve‐

hicle

Speed

Sensor

• Speed sensor

fault value: Out

of range low

failure

• Con‐

tinu‐

ous

nal, Checking”,

page 529

• Speed sensor

fault value: Ra‐

tionality check

high failure

• Speed sensor

fault value: Ra‐

tionality check

low failure

P0502

Vehicle

Speed

Sensor

"A" Cir‐

cuit Low

Vehicle

Speed

Sensor

(VSS)

short to

ground

• Diagnostic sig‐

nal from output

driver failure

 

• 0.5 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Vehi‐

cle Speed Sig‐

nal. Refer to

⇒ “3.6.33 Vehi‐

cle Speed Sig‐

nal, Checking”,

page 529

Vehicle

Speed

Sensor

(VSS)

open cir‐

cuit

 

Vehicle

Speed

Sensor

(VSS)

short to

battery

plus

 

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

298

     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

P0506

Idle

Control

System

RPM -

Lower

Than

Expec‐

ted

Idle

Speed

Control

(ISC)

function

monitor‐

ing: en‐

gine

speed

deviation

• Diff. actual en‐

gine speed vs.

engine speed

setpoint < -100

RPM

• Integrated I-

part of idle

speed control‐

ler n.a.

• General condi‐

tions:

• Vehicle speed =0

mph

• Accelerator pedal

released by driv‐

er

• Throttle actuator

commanded on

• Evap purge flow <

4.00 kg/h

• Engine running
• Time after engine

start > 0.0 s

• Clutch switch n.a.
• Barometric pres‐

sure > 70.00 kPa

• Catalyst heating

not active

• ECT @ cylinder

head > -48° C

• And
• Setpoint change

n.a. rpm

• For time n.a. s
• And
• Additional after

dynamic condi‐

tions fulfilled:

• Gear switch not

active

• (A/T only)
• Accelerator pedal

released by driv‐

er

• Vehicle speed 0

mph

• Engine load <

31.25 %

• (M/T only)
• For time >= 0.0 s

• 12.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

⇒ “3.6.31  Throt‐

tle Valve Control

Module GX3 ,

Checking”, page

524

 .

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing    

299

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

P0507

Idle

Control

System

RPM -

Higher

Than

Expec‐

ted

Idle

Speed

Control

(ISC)

function

monitor‐

ing: en‐

gine

speed

deviation

• Diff. actual en‐

gine speed vs.

engine speed

setpoint > 90

RPM

• Integrated I-

part of idle

speed control‐

ler n.a.

• General condi‐

tions:

• Vehicle speed =0

mph

• Accelerator pedal

released by driv‐

er

• Throttle actuator

commanded on

• Evap purge flow <

4.00 kg/h

• Engine running
• Time after engine

start > 0.0 s

• Clutch switch n.a.
• Barometric pres‐

sure > 70.00 kPa

• Catalyst heating

not active

• ECT @ cylinder

head > -48° C

• And
• Setpoint change

n.a. rpm

• For time n.a. s
• And
• Additional after

dynamic condi‐

tions fulfilled:

• Gear switch not

active

• (A/T only)
• Accelerator pedal

released by driv‐

er

• Vehicle speed 0

mph

• (M/T only)
• For time >= 0.0 s

• 12 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Throt‐

tle Valve Control

Module - GX3- .

Refer to

⇒ “3.6.31  Throt‐

tle Valve Control

Module GX3 ,

Checking”, page

524

 .

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

300

     Rep. Gr. ST - Generic Scan Tool