Volkswagen Golf / Golf GTI / Jetta. Manual — part 150

01-179

Work steps 10 to 11:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

10

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

(Oxygen

Sensor

(O2S)

aging)

04/43

Brakes

operated

Accelerator

in wide
openthrottle
position.

Engine

speed

Three Way

Catalytic

Converter

(TWC)

temperature

Oxygen

Sensor

(O2S)

voltage,
Oxygen

Sensor

(O2S) after
Three Way

Catalytic

Converter

(TWC)

Specification:

Approx.

2300 rpm

Greater than

380 C

0.100...0.900

V

11

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

(operational

readiness)

04/36

Idle speed

Oxygen

Sensor

(O2S)

voltage,

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

Result

No display

Specification: 0.100...0.900

V

B1 P2 OK.

---

Readiness code

01-180

Work steps 12 to 13:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

12

Three

Way

Catalytic

Converter

(TWC)

04/46

Brakes

operated

Accelerator

in wide
openthrottle
position.

Engine

speed

Three Way

Catalytic

Converter

(TWC)

temperature

Three Way

Catalytic

Converter

(TWC)

conversion

rate

Specification: Approx.

2300

rpm

Greater than

380 C

0.00...0.99

13

Fuel

supply

system

(idle

speed)

04/216

Idle speed

Engine

speed

Oxygen

Sensor

(O2S)

before

Three Way

Catalytic

Converter

(TWC)

lower part

load

Oxygen

Sensor

(O2S)

before

Three Way

Catalytic

Converter

(TWC)

idle speed

Specification:

---

---

---

xxxx1100

Readiness code

01-181

Work steps 14 to 16:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

14

Evaporative

Emission

(EVAP)

Canister Purge

RegulatorValve

-N80-

(Tank

ventilation

system)

04/70

Idle speed

Evaporative

Emissions

(EVAP)

Canister

regulator

valve 1

duty cycle

TBV

quality

No

display

Specification:

---

---

---

15 Secondary air

system

04/77

Idle speed

Idle speed

Air

mass

drawn

in

Air mass,

secondary

air

system

Specification:

640...720

rpm

---

---

16

Read

readiness

code

15/---

Idle speed

---

---

---

1)

TBV stands for Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-.

Readiness code

01-145

Readiness code

Function

The readiness code is an 8-digit number

code which displays the status of the
emission relevant diagnosis.

When the diagnosis for a system (e.g.

secondary air system) has been
successfully completed, the corresponding
position in the number code will change from
1 to 0.

The diagnosis is performed at regular

intervals during normal driving. It is
recommended that the readiness code be
generated after performing repairs on an
emission relevant system, to guarantee that
these systems function correctly. If a
malfunction is detected during the diagnosis
it will be stored in the DTC memory.

Each time the DTC memory is erased or the

voltage supply is interrupted the readiness
code will be erased.

Readiness code