Content .. 151 152 153 154 ..

Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 153

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

• Fast detection:
• Ratio between

knock sensor

and knock

threshold in

main knock

window > 1.50

– 2.50 [-]

• For time >=

540.0° CRK

• Or
• Ratio between

knock sensor

and noise level

in pre knock

window > 2.75

– 4.50 [-]

• For time >=

360.0° CRK

• Case 1:
• ratio between

filtered engine

roughness and

misfire detec‐

tion threshold

<= 0.41 – 0.59

[-]

• Or
• Case 2:
• Ratio between

normalized en‐

gine roughness

and misfire de‐

tection thresh‐

old <= n.a. [-]

• Or
• Case 3:
• Ratio between

filtered engine

roughness and

misfire detec‐

tion threshold

<= n.a. [-]

• Or
• Ratio between

normalized en‐

gine roughness

and misfire de‐

tection thresh‐

old <= n.a. [-]

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

285

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

P0410

AIR Sys‐

tem "A"

Secon‐

dary Air

System

Function‐

al Check

• Diff. pressure

value after sec‐

ondary air in‐

jection vs.

pressure value

before secon‐

dary air activa‐

tion > 5.0 kPa

• General:
• Secondary air

pump ready

• Catalyst heating

active

• Secondary air in‐

jection finished

• MAF <= 140.0 kg/

• ECT @ cylinder

head >= -10; <

115° C

• IAT @ manifold

>= -10; < 100° C

• Modeled 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

– Check the Sec‐

ondary Air Injec‐

tion Pump Motor

- V101- / Secon‐

dary Air Injection

Pump Relay -

J299- . Refer to

P0413

AIR Sys‐

tem

Switch‐

ing

Valve

"A" Cir‐

cuit

Open

Secon‐

dary Air

Valve

Open Cir‐

cuit

• Output voltage,

lower range >=

1.92 – 2.21 V

• Output voltage,

upper range

(hardware val‐

ues) <= 2.85 –

3.25 V

• Engine running
• Actuator com‐

manded off

• 2.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Sec‐

ondary Air Sys‐

tem - GX24- .

Refer to

P0414

AIR Sys‐

tem

Switch‐

ing

Valve

"A" Cir‐

cuit

Shorted

Secon‐

dary Air

Valve

Short To

Ground

• Output voltage

(hardware val‐

ues) < 1.92 –

2.21 V

• Engine running
• Actuator com‐

manded off

• 2.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Sec‐

ondary Air Sys‐

tem - GX24- .

Refer to

Secon‐

dary Air

Valve

Short To

Battery

Plus

• Actuator tem‐

perature > 160

– 200° C

• Or
• Output current

(hardware val‐

ues) driver

stage internal

value

• Engine running
• Actuator com‐

manded on

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

286

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

P0418

AIR Sys‐

tem

Control

"A" Cir‐

cuit

Secon‐

dary Air

Injection

Pump

Relay

Open Cir‐

cuit

• Output voltage,

lower range

1.92 – 2.21 V

• Output voltage,

upper range

(hardware val‐

ues) <= 2.85 –

3.25 V

• Engine running
• Actuator com‐

manded off

• 2.0 s
• Con‐

tinu‐

ous

• 2

DCY

– Check the Sec‐

ondary Air Injec‐

tion Pump Motor

- V101- / Secon‐

dary Air Injection

Pump Relay -

J299- . Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

287

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

P0420

Catalyst

System

Efficien‐

cy Be‐

low

Thresh‐

old Bank

NMOG /

NMHC

Conver‐

sion Ca‐

pability

• Catalyst effi‐

ciency > 1.00

[-]

• Catalyst monitor

lambda modula‐

tion request ac‐

tive

• General condi‐

tions:

• Vehicle speed >=

19 mph

• BARO >= 0.00

kPa

• Catalyst over‐

heating protec‐

tion not active

• Turbine over‐

heating protec‐

tion not active

• O2S rear ready
• O2S front ready
• ECT @ cylinder

head > 60° C

• IAT@ manifold >

-48° C

• modeled catalyst

temperature @

start of diagnosis

> 510° C

• Modeled catalyst

temperature @

during diagnosis

470 – 830° C

• Difference be‐

tween dynamic

and stationary

catalyst tempera‐

ture -150 – 150° C

• Integrated MAF,

catalyst temp.

conditions fulfil‐

led >= 0.0 g

• Modeled EGT @

O2S rear <= 900°

• MAF per cylinder

22.50 – 150.00

kg/h

• Air mass, lower

range >= 0.00

mg/rev

• Air mass, upper

range <= 650.00

– 1,389.00 mg/

rev

• 60.0 –

70.0 s

• Once /

DCY

• 1

DCY

– Check the Three

Way Catalytic

Converter. Re‐

fer to appropri‐

ate repair man‐

ual.

– Check the Oxy‐

gen Sensor 1 Af‐

ter Catalytic

Converter -

GX7- . Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

288

Rep. Gr. ST - Generic Scan Tool

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